Q: 2011 MacBook Pro and Discrete Graphics Card

My 15” MBP Early 2011 finally kicked the can last week. I sent it off for repairs and came back to me a few days later. They replaced the logic board with a refurbished one (it didn’t have any serial numbers or identifying marks on it) At first, I was having all sorts of issues, most notably extremely long boot times on shutdown / restarts. After the usual troubleshooting (NVRAM resets, etc) things seemed to iron themselves out.

However, lately I have been experiencing a new issue that is very concerning. I have my computer attached to a Thunderbolt monitor and without warning, the display goes completely black. After unplugging / replugging the display from the TB port, the display turns back on and works as usual. But the problem seems to be occurring more frequently, and it reminds of me the symptoms my machine was experiencing just prior to the the graphics failure.

Here are the relevant parts of the Console reading:

Any help would be appreciated.

5/14/15 6:39:46.000 PM kernel[0]: IOThunderboltSwitch<0xffffff8021fc1e00>(0x0)::listenerCallback - Thunderbolt HPD packet for route = 0x0 port = 1 unplug = 1

5/14/15 6:39:46.000 PM kernel[0]: [ PCI configuration begin ]

5/14/15 6:39:46.000 PM kernel[0]: [ PCI configuration end, bridges 12, devices 23 ]

5/14/15 6:39:46.000 PM kernel[0]: AppleBCM5701Ethernet [en4]: willTerminate - offline

5/14/15 6:39:46.000 PM kernel[0]: IOThunderboltSwitch<0xffffff8021fc1e00>(0x0)::listenerCallback - Thunderbolt HPD packet for route = 0x0 port = 2 unplug = 1

5/14/15 6:39:46.996 PM WindowServer[152]: Received display connect changed for display 0x3f003e

5/14/15 6:39:46.997 PM WindowServer[152]: Found 30 modes for display 0x003f003e [30, 0]

5/14/15 6:39:46.997 PM WindowServer[152]: Display 0x003f003e changed state to online

5/14/15 6:39:47.003 PM WindowServer[152]: description_for_mode_number: IOFBGetPixelInformation failed (-536870185)

5/14/15 6:39:47.005 PM WindowServer[152]: Received display connect changed for display 0x424a5c7

5/14/15 6:39:47.005 PM WindowServer[152]: Found 1 modes for display 0x0424a5c7 [1, 0]

5/14/15 6:39:47.005 PM WindowServer[152]: Display 0x0424a5c7 changed state to offline

5/14/15 6:39:47.009 PM WindowServer[152]: Received display connect changed for display 0x3f0040

5/14/15 6:39:47.009 PM WindowServer[152]: Found 1 modes for display 0x003f0040 [1, 0]

5/14/15 6:39:47.026 PM WindowServer[152]: Display 0x04280142: GL mask 0x5; bounds (0, 0)[1680 x 1050], 30 modes available

Main, Active, on-line, enabled, built-in, boot, Vendor 610, Model a005, S/N 0, Unit 2, Rotation 0

UUID 0xde23f9c1cf7b915b2afe83aecee77b54, ColorSpace { 1546103174 }

5/14/15 6:39:47.026 PM WindowServer[152]: Display 0x003f003d: GL mask 0x2; bounds (3584, 0)[1 x 1], 2 modes available

off-line, enabled, OpenGL-accel, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 1, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

5/14/15 6:39:47.026 PM WindowServer[152]: GLCompositor: GL renderer id 0x01024301, GL mask 0x00000003, accelerator 0x0000432b, unit 0, caps QEX|MIPMAP, vram 451 MB

texture max 8192, viewport max {8192, 8192}, extensions NPOT|GLSL|FLOAT

5/14/15 6:39:47.026 PM WindowServer[152]: Display 0x003f0040: GL mask 0x10; bounds (3585, 0)[1 x 1], 1 modes available

off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 4, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

5/14/15 6:39:47.027 PM WindowServer[152]: Display 0x003f003f: GL mask 0x8; bounds (0, 0)[1 x 1], 1 modes available

off-line, enabled, OpenGL-accel, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 3, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff, ColorSpace { -1771774886 }

5/14/15 6:39:47.027 PM WindowServer[152]: GLCompositor: GL renderer id 0x01021b06, GL mask 0x0000001c, accelerator 0x00002453, unit 2, caps QEX|MIPMAP, vram 1024 MB

texture max 16384, viewport max {16384, 16384}, extensions NPOT|GLSL|FLOAT

5/14/15 6:39:47.042 PM WindowServer[152]: Display 0x04280142: Unit 2: Startup Mode 1680 x 1050, CGSThirtytwoBitColor, Resolution 1, ioModeID 0x80004000, ioModeDepth 0x1, IOReturn 0x0

5/14/15 6:39:47.043 PM WindowServer[152]: CGXDisplaysDidReconfigure: Display added

5/14/15 6:39:47.043 PM WindowServer[152]: CGXDisplaysDidReconfigure: Display removed

5/14/15 6:39:47.045 PM WindowServer[152]: Display 0x04280142: GL mask 0x5; bounds (0, 0)[1680 x 1050], 30 modes available

Main, Active, on-line, enabled, built-in, boot, Vendor 610, Model a005, S/N 0, Unit 2, Rotation 0

UUID 0xde23f9c1cf7b915b2afe83aecee77b54, ColorSpace { 1546103174 }

5/14/15 6:39:47.045 PM WindowServer[152]: _CGXGLDisplayContextForDisplayDevice: acquired display context (0x7fc5da917da0) - enabling OpenGL

5/14/15 6:39:47.045 PM WindowServer[152]: GLCompositor: GL renderer id 0x01021b06, GL mask 0x0000001c, accelerator 0x00002453, unit 2, caps QEX|MIPMAP, vram 1024 MB

texture max 16384, viewport max {16384, 16384}, extensions NPOT|GLSL|FLOAT

5/14/15 6:39:47.045 PM WindowServer[152]: Display 0x003f003d: GL mask 0x2; bounds (2704, 0)[1 x 1], 2 modes available

off-line, enabled, OpenGL-accel, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 1, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

5/14/15 6:39:47.046 PM WindowServer[152]: GLCompositor: GL renderer id 0x01024301, GL mask 0x00000003, accelerator 0x0000432b, unit 0, caps QEX|MIPMAP, vram 451 MB

texture max 8192, viewport max {8192, 8192}, extensions NPOT|GLSL|FLOAT

5/14/15 6:39:47.046 PM WindowServer[152]: Display 0x003f0040: GL mask 0x10; bounds (2705, 0)[1 x 1], 1 modes available

off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 4, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

5/14/15 6:39:47.046 PM WindowServer[152]: Display 0x003f003f: GL mask 0x8; bounds (2706, 0)[1 x 1], 1 modes available

off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 3, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff, ColorSpace { -1771774886 }

5/14/15 6:39:47.050 PM WindowServer[152]: MPAccessSurfaceForDisplayDevice: Set up page flip mode on display 0x04280142 device: 0x7fc5da917da0  isBackBuffered: 1 numComp: 3 numDisp: 3

5/14/15 6:39:47.067 PM WindowServer[152]: Received display connect changed for display 0x4280142

5/14/15 6:39:47.080 PM WindowServer[152]: Found 18 modes for display 0x04280142 [18, 0]

5/14/15 6:39:47.097 PM WindowServer[152]: CGXMuxAcknowledge: Posting glitchless acknowledge

5/14/15 6:39:47.195 PM WindowServer[152]: Received display connect changed for display 0x4280142

5/14/15 6:39:47.196 PM WindowServer[152]: Found 1 modes for display 0x04280142 [1, 0]

5/14/15 6:39:47.196 PM WindowServer[152]: Received display connect changed for display 0x3f003f

5/14/15 6:39:47.196 PM WindowServer[152]: Found 1 modes for display 0x003f003f [1, 0]

5/14/15 6:39:47.196 PM WindowServer[152]: Received display connect changed for display 0x3f0040

5/14/15 6:39:47.196 PM WindowServer[152]: Found 1 modes for display 0x003f0040 [1, 0]

5/14/15 6:39:47.423 PM identityservicesd[294]: <IMMacNotificationCenterManager: 0x7fbbf113f7a0>: notification observer: com.apple.iChat  notification: __CFNotification 0x7fbbf1122f00 {name = _NSDoNotDisturbEnabledNotification}

5/14/15 6:39:47.423 PM imagent[299]: <IMMacNotificationCenterManager: 0x7fa389e0e360>: notification observer: com.apple.FaceTime  notification: __CFNotification 0x7fa38b804eb0 {name = _NSDoNotDisturbEnabledNotification}

5/14/15 6:39:47.449 PM imagent[299]: <IMMacNotificationCenterManager: 0x7fa389e0e360>:    NC Disabled: NO

5/14/15 6:39:47.449 PM identityservicesd[294]: <IMMacNotificationCenterManager: 0x7fbbf113f7a0>:    NC Disabled: NO

5/14/15 6:39:47.463 PM identityservicesd[294]: <IMMacNotificationCenterManager: 0x7fbbf113f7a0>:  DND Enabled: YES

5/14/15 6:39:47.463 PM imagent[299]: <IMMacNotificationCenterManager: 0x7fa389e0e360>:  DND Enabled: YES

5/14/15 6:39:47.463 PM imagent[299]: <IMMacNotificationCenterManager: 0x7fa389e0e360>: Updating enabled: NO  (Topics: (

))

5/14/15 6:39:47.463 PM identityservicesd[294]: <IMMacNotificationCenterManager: 0x7fbbf113f7a0>: Updating enabled: NO  (Topics: (

))

5/14/15 6:39:47.464 PM identityservicesd[294]: <IMMacNotificationCenterManager: 0x7fbbf131e0b0>: notification observer: com.apple.iChat  notification: __CFNotification 0x7fbbf10196c0 {name = _NSDoNotDisturbEnabledNotification}

5/14/15 6:39:47.470 PM identityservicesd[294]: <IMMacNotificationCenterManager: 0x7fbbf131e0b0>:    NC Disabled: NO

5/14/15 6:39:47.488 PM identityservicesd[294]: <IMMacNotificationCenterManager: 0x7fbbf131e0b0>:  DND Enabled: YES

5/14/15 6:39:47.488 PM identityservicesd[294]: <IMMacNotificationCenterManager: 0x7fbbf131e0b0>: Updating enabled: NO  (Topics: (

))

5/14/15 6:39:49.006 PM WindowServer[152]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'. Run with arg = -discovery

5/14/15 6:39:49.041 PM WindowServer[152]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'. Run with arg = -discovery

5/14/15 6:39:49.054 PM WindowServer[152]: CGXSetDisplayColorProfileAndTransfer: Display 0x04280142: Unit 2; ColorProfile { 1546103174 }; TransferTable (256, 12)

5/14/15 6:39:49.055 PM com.apple.AmbientDisplayAgent[199]: AMBD Agent: xpc connection became invalid during event handler

5/14/15 6:39:49.083 PM WindowServer[152]: CGXSetDisplayColorProfileAndTransfer: Display 0x04280142: Unit 2; ColorProfile { 1546103174 }; TransferTable (256, 12)

5/14/15 6:39:49.084 PM com.apple.AmbientDisplayAgent[199]: AMBD Agent: xpc connection became invalid during event handler

5/14/15 6:39:49.093 PM DMProxy[1560]: AMBD Services: connection interrupted: com.apple.AmbientDisplayAgent (Connection interrupted)

5/14/15 6:39:49.100 PM com.apple.AmbientDisplayAgent[199]: AmbientDisplayAgent started

5/14/15 6:39:49.105 PM com.apple.AmbientDisplayAgent[199]: AMBD initializing devices

5/14/15 6:39:49.116 PM WindowServer[152]: CGXSetDisplayColorProfileAndTransfer: Display 0x04280142: Unit 2; ColorProfile { 1546103174 }; TransferTable (256, 12)

5/14/15 6:39:49.119 PM com.apple.AmbientDisplayAgent[199]: AMBD Agent: xpc connection became invalid during event handler

5/14/15 6:39:49.130 PM DMProxy[1561]: AMBD Services: connection interrupted: com.apple.AmbientDisplayAgent (Connection interrupted)

5/14/15 6:39:49.137 PM com.apple.AmbientDisplayAgent[199]: AmbientDisplayAgent started

5/14/15 6:39:49.142 PM com.apple.AmbientDisplayAgent[199]: AMBD initializing devices

5/14/15 6:39:49.153 PM WindowServer[152]: CGXSetDisplayColorProfileAndTransfer: Display 0x04280142: Unit 2; ColorProfile { 1546103174 }; TransferTable (256, 12)

5/14/15 6:39:49.155 PM com.apple.AmbientDisplayAgent[199]: AMBD Agent: xpc connection became invalid during event handler

5/14/15 6:39:59.000 PM kernel[0]: AppleThunderboltGenericHAL::earlyWake - complete - took 0 milliseconds

5/14/15 6:39:59.000 PM kernel[0]: AppleThunderboltDPPathManager<0xffffff8030a99700>::createPath - path type 0x1: Initial Credits [int=0 src=0 dst=0] NFC Credits [int=14 src=5 dst=14]

5/14/15 6:39:59.000 PM kernel[0]: AppleThunderboltDPPathManager<0xffffff8030a99700>::createPath - path type 0x2: Initial Credits [int=2 src=2 dst=1] NFC Credits [int=0 src=0 dst=0]

5/14/15 6:39:59.000 PM kernel[0]: AppleThunderboltDPPathManager<0xffffff8030a99700>::createPath - path type 0x4: Initial Credits [int=2 src=7 dst=1] NFC Credits [int=0 src=0 dst=0]

5/14/15 6:39:59.734 PM WindowServer[152]: Received display connect changed for display 0x4280142

5/14/15 6:39:59.750 PM WindowServer[152]: Found 30 modes for display 0x04280142 [30, 0]

5/14/15 6:39:59.767 PM WindowServer[152]: Received display connect changed for display 0x3f003f

5/14/15 6:39:59.768 PM WindowServer[152]: Found 1 modes for display 0x003f003f [1, 0]

5/14/15 6:39:59.768 PM WindowServer[152]: Received display connect changed for display 0x3f0040

5/14/15 6:39:59.768 PM WindowServer[152]: Found 1 modes for display 0x003f0040 [1, 0]

5/14/15 6:39:59.783 PM WindowServer[152]: CGXMuxAcknowledge: Posting glitchless acknowledge

5/14/15 6:39:59.815 PM WindowServer[152]: MPAccessSurfaceForDisplayDevice: Set up page flip mode on display 0x04280142 device: 0x7fc5da917da0  isBackBuffered: 1 numComp: 3 numDisp: 3

5/14/15 6:40:00.704 PM WindowServer[152]: Received display connect changed for display 0x4280142

5/14/15 6:40:00.705 PM WindowServer[152]: Found 1 modes for display 0x04280142 [1, 0]

5/14/15 6:40:00.705 PM WindowServer[152]: Display 0x04280142 changed state to offline

5/14/15 6:40:00.711 PM WindowServer[152]: No display devices are on-line. Switching to virtual display mode

5/14/15 6:40:00.714 PM WindowServer[152]: Received display connect changed for display 0x3f003f

5/14/15 6:40:00.716 PM WindowServer[152]: Found 32 modes for display 0x003f003f [32, 0]

5/14/15 6:40:00.716 PM WindowServer[152]: Display 0x003f003f changed state to online

5/14/15 6:40:00.725 PM WindowServer[152]: New display device coming on-line. Switching from virtual display mode

5/14/15 6:40:00.725 PM WindowServer[152]: Received display connect changed for display 0x3f0040

5/14/15 6:40:00.725 PM WindowServer[152]: Found 1 modes for display 0x003f0040 [1, 0]

5/14/15 6:40:00.727 PM WindowServer[152]: Received display connect changed for display 0x3f003e

5/14/15 6:40:00.727 PM WindowServer[152]: Found 1 modes for display 0x003f003e [1, 0]

5/14/15 6:40:00.745 PM WindowServer[152]: MPServiceForDisplayDevice: Invalid device alias (0)

5/14/15 6:40:00.745 PM WindowServer[152]: Display 0x003f003d: GL mask 0x2; bounds (2704, 0)[1 x 1], 2 modes available

off-line, enabled, OpenGL-accel, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 1, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

5/14/15 6:40:00.746 PM WindowServer[152]: GLCompositor: GL renderer id 0x01024301, GL mask 0x00000003, accelerator 0x0000432b, unit 0, caps QEX|MIPMAP, vram 451 MB

texture max 8192, viewport max {8192, 8192}, extensions NPOT|GLSL|FLOAT

5/14/15 6:40:00.746 PM WindowServer[152]: Display 0x003f0040: GL mask 0x10; bounds (2705, 0)[1 x 1], 1 modes available

off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 4, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

5/14/15 6:40:00.746 PM WindowServer[152]: Display 0x0424a5c7: GL mask 0x8; bounds (-2560, 0)[2560 x 1440], 32 modes available

Main, Active, on-line, enabled, Vendor 610, Model 9227, S/N 15222c04, Unit 3, Rotation 0

UUID 0x6ebf046a59052d1f3c08730b87a48911, ColorSpace { -1771774886 }

5/14/15 6:40:00.746 PM WindowServer[152]: Display 0x003f003e: GL mask 0x5; bounds (0, 0)[1 x 1], 1 modes available

off-line, enabled, boot, OpenGL-accel, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 2, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff, ColorSpace { 1546103174 }

5/14/15 6:40:00.746 PM WindowServer[152]: GLCompositor: GL renderer id 0x01021b06, GL mask 0x0000001c, accelerator 0x00002453, unit 2, caps QEX|MIPMAP, vram 1024 MB

texture max 16384, viewport max {16384, 16384}, extensions NPOT|GLSL|FLOAT

5/14/15 6:40:00.765 PM WindowServer[152]: Display 0x0424a5c7: Unit 3: Startup Mode 2560 x 1440, CGSThirtytwoBitColor, Resolution 1, ioModeID 0x80003000, ioModeDepth 0x1, IOReturn 0x0

5/14/15 6:40:00.766 PM WindowServer[152]: CGXDisplaysDidReconfigure: Display added

5/14/15 6:40:00.766 PM WindowServer[152]: CGXDisplaysDidReconfigure: Display removed

5/14/15 6:40:00.769 PM WindowServer[152]: Display 0x0424a5c7: GL mask 0x8; bounds (0, 0)[2560 x 1440], 32 modes available

Main, Active, on-line, enabled, Vendor 610, Model 9227, S/N 15222c04, Unit 3, Rotation 0

UUID 0x6ebf046a59052d1f3c08730b87a48911, ColorSpace { -1771774886 }

5/14/15 6:40:00.769 PM WindowServer[152]: _CGXGLDisplayContextForDisplayDevice: acquired display context (0x7fc5da923440) - enabling OpenGL

5/14/15 6:40:00.769 PM WindowServer[152]: GLCompositor: GL renderer id 0x01021b06, GL mask 0x0000001c, accelerator 0x00002453, unit 2, caps QEX|MIPMAP, vram 1024 MB

texture max 16384, viewport max {16384, 16384}, extensions NPOT|GLSL|FLOAT

5/14/15 6:40:00.769 PM WindowServer[152]: Display 0x003f003d: GL mask 0x2; bounds (3584, 0)[1 x 1], 2 modes available

off-line, enabled, OpenGL-accel, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 1, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

5/14/15 6:40:00.769 PM WindowServer[152]: GLCompositor: GL renderer id 0x01024301, GL mask 0x00000003, accelerator 0x0000432b, unit 0, caps QEX|MIPMAP, vram 451 MB

texture max 8192, viewport max {8192, 8192}, extensions NPOT|GLSL|FLOAT

5/14/15 6:40:00.769 PM WindowServer[152]: Display 0x003f0040: GL mask 0x10; bounds (3585, 0)[1 x 1], 1 modes available

off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 4, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

5/14/15 6:40:00.769 PM WindowServer[152]: Display 0x003f003e: GL mask 0x5; bounds (3586, 0)[1 x 1], 1 modes available

off-line, enabled, boot, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 2, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff, ColorSpace { 1546103174 }

5/14/15 6:40:00.778 PM WindowServer[152]: MPAccessSurfaceForDisplayDevice: Set up page flip mode on display 0x0424a5c7 device: 0x7fc5da923440  isBackBuffered: 1 numComp: 3 numDisp: 3

5/14/15 6:40:01.000 PM kernel[0]: [ PCI configuration begin ]

5/14/15 6:40:01.000 PM kernel[0]: [ PCI configuration end, bridges 20, devices 23 ]

5/14/15 6:40:01.000 PM kernel[0]: USBF:    19396.482    The USB EHCI driver found a controller at the wrong PCI Power State (0x9) - fixing that issue.

5/14/15 6:40:01.000 PM kernel[0]: FireWire runtime power conservation disabled. (3)

5/14/15 6:40:01.570 PM WindowServer[152]: Received display connect changed for display 0x3f003e

5/14/15 6:40:01.571 PM WindowServer[152]: Found 1 modes for display 0x003f003e [1, 0]

5/14/15 6:40:01.571 PM WindowServer[152]: Received display connect changed for display 0x424a5c7

5/14/15 6:40:01.572 PM WindowServer[152]: Found 32 modes for display 0x0424a5c7 [32, 0]

5/14/15 6:40:01.585 PM WindowServer[152]: Received display connect changed for display 0x3f0040

5/14/15 6:40:01.585 PM WindowServer[152]: Found 1 modes for display 0x003f0040 [1, 0]

5/14/15 6:40:01.597 PM WindowServer[152]: MPServiceForDisplayDevice: Invalid device alias (0)

5/14/15 6:40:01.597 PM WindowServer[152]: Display 0x0424a5c7: GL mask 0x8; bounds (0, 0)[2560 x 1440], 32 modes available

Main, Active, on-line, enabled, OpenGL-accel, Vendor 610, Model 9227, S/N 15222c04, Unit 3, Rotation 0

UUID 0x6ebf046a59052d1f3c08730b87a48911, ColorSpace { -1771774886 }

5/14/15 6:40:01.598 PM WindowServer[152]: GLCompositor: GL renderer id 0x01021b06, GL mask 0x0000001c, accelerator 0x00002453, unit 2, caps QEX|MIPMAP, vram 1024 MB

texture max 16384, viewport max {16384, 16384}, extensions NPOT|GLSL|FLOAT

5/14/15 6:40:01.598 PM WindowServer[152]: Display 0x003f003d: GL mask 0x2; bounds (3584, 0)[1 x 1], 2 modes available

off-line, enabled, OpenGL-accel, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 1, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

5/14/15 6:40:01.598 PM WindowServer[152]: GLCompositor: GL renderer id 0x01024301, GL mask 0x00000003, accelerator 0x0000432b, unit 0, caps QEX|MIPMAP, vram 451 MB

texture max 8192, viewport max {8192, 8192}, extensions NPOT|GLSL|FLOAT

5/14/15 6:40:01.598 PM WindowServer[152]: Display 0x003f0040: GL mask 0x10; bounds (3585, 0)[1 x 1], 1 modes available

off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 4, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

5/14/15 6:40:01.598 PM WindowServer[152]: Display 0x003f003e: GL mask 0x5; bounds (3586, 0)[1 x 1], 1 modes available

off-line, enabled, boot, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 2, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff, ColorSpace { 1546103174 }

5/14/15 6:40:01.000 PM kernel[0]: FireWire (OHCI) Lucent ID 5901 PCI now active, GUID 000a270200406cc4; max speed s800.

5/14/15 6:40:01.858 PM WindowServer[152]: CGError post_notification(const CGSNotificationType, void *const, const size_t, const bool, const CGSRealTimeDelta, const int, const CGSConnectionID *const, const pid_t): Timed out 0.250 second wait for reply from "Acrobat" for synchronous notification type 100 (kCGSDisplayWillReconfigure) (CID 0x26407, PID 1518)

5/14/15 6:40:01.859 PM WindowServer[152]: CGError post_notification(const CGSNotificationType, void *const, const size_t, const bool, const CGSRealTimeDelta, const int, const CGSConnectionID *const, const pid_t): Timed out 0.250 second wait for reply from "Microsoft Word" for synchronous notification type 100 (kCGSDisplayWillReconfigure) (CID 0x10a13, PID 862)

5/14/15 6:40:01.867 PM WindowServer[152]: Display 0x0424a5c7: Unit 3: Startup Mode 2560 x 1440, CGSThirtytwoBitColor, Resolution 1, ioModeID 0x80005000, ioModeDepth 0x1, IOReturn 0x0

5/14/15 6:40:01.867 PM WindowServer[152]: CGXDisplaysDidReconfigure: Display added

5/14/15 6:40:01.867 PM WindowServer[152]: CGXDisplaysDidReconfigure: Display removed

5/14/15 6:40:01.870 PM WindowServer[152]: Display 0x0424a5c7: GL mask 0x8; bounds (0, 0)[2560 x 1440], 32 modes available

Main, Active, on-line, enabled, OpenGL-accel, Vendor 610, Model 9227, S/N 15222c04, Unit 3, Rotation 0

UUID 0x6ebf046a59052d1f3c08730b87a48911, ColorSpace { -1771774886 }

5/14/15 6:40:01.870 PM WindowServer[152]: GLCompositor: GL renderer id 0x01021b06, GL mask 0x0000001c, accelerator 0x00002453, unit 2, caps QEX|MIPMAP, vram 1024 MB

texture max 16384, viewport max {16384, 16384}, extensions NPOT|GLSL|FLOAT

5/14/15 6:40:01.870 PM WindowServer[152]: Display 0x003f003d: GL mask 0x2; bounds (3584, 0)[1 x 1], 2 modes available

off-line, enabled, OpenGL-accel, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 1, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

5/14/15 6:40:01.870 PM WindowServer[152]: GLCompositor: GL renderer id 0x01024301, GL mask 0x00000003, accelerator 0x0000432b, unit 0, caps QEX|MIPMAP, vram 451 MB

texture max 8192, viewport max {8192, 8192}, extensions NPOT|GLSL|FLOAT

5/14/15 6:40:01.870 PM WindowServer[152]: Display 0x003f0040: GL mask 0x10; bounds (3585, 0)[1 x 1], 1 modes available

off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 4, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

5/14/15 6:40:01.870 PM WindowServer[152]: Display 0x003f003e: GL mask 0x5; bounds (3586, 0)[1 x 1], 1 modes available

off-line, enabled, boot, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 2, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff, ColorSpace { 1546103174 }

5/14/15 6:40:01.881 PM WindowServer[152]: MPAccessSurfaceForDisplayDevice: Set up page flip mode on display 0x0424a5c7 device: 0x7fc5da923440  isBackBuffered: 1 numComp: 3 numDisp: 3

5/14/15 6:40:02.725 PM WindowServer[152]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'. Run with arg = -discovery

5/14/15 6:40:02.766 PM WindowServer[152]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'. Run with arg = -discovery

5/14/15 6:40:02.770 PM WindowServer[152]: CGXSetDisplayColorProfileAndTransfer: Display 0x0424a5c7: Unit 3; ColorProfile { -1771774886 }; TransferFormula (1.000000, 1.000000, 1.000000)

5/14/15 6:40:02.770 PM com.apple.AmbientDisplayAgent[199]: AMBD Agent: xpc connection became invalid during event handler

5/14/15 6:40:02.788 PM DMProxy[1563]: AMBD Services: connection interrupted: com.apple.AmbientDisplayAgent (Connection interrupted)

5/14/15 6:40:02.797 PM com.apple.AmbientDisplayAgent[199]: AmbientDisplayAgent started

5/14/15 6:40:02.802 PM com.apple.AmbientDisplayAgent[199]: AMBD initializing devices

5/14/15 6:40:02.823 PM WindowServer[152]: CGXSetDisplayColorProfileAndTransfer: Display 0x0424a5c7: Unit 3; ColorProfile { -1771774886 }; TransferFormula (1.000000, 1.000000, 1.000000)

5/14/15 6:40:02.825 PM com.apple.AmbientDisplayAgent[199]: AMBD Agent: xpc connection became invalid during event handler

5/14/15 6:40:02.865 PM WindowServer[152]: CGXSetDisplayColorProfileAndTransfer: Display 0x0424a5c7: Unit 3; ColorProfile { -1771774886 }; TransferFormula (1.000000, 1.000000, 1.000000)

5/14/15 6:40:02.865 PM com.apple.AmbientDisplayAgent[199]: AMBD Agent: xpc connection became invalid during event handler

5/14/15 6:40:02.893 PM DMProxy[1564]: AMBD Services: connection interrupted: com.apple.AmbientDisplayAgent (Connection interrupted)

5/14/15 6:40:02.900 PM com.apple.AmbientDisplayAgent[199]: AmbientDisplayAgent started

5/14/15 6:40:02.905 PM com.apple.AmbientDisplayAgent[199]: AMBD initializing devices

5/14/15 6:40:02.923 PM WindowServer[152]: CGXSetDisplayColorProfileAndTransfer: Display 0x0424a5c7: Unit 3; ColorProfile { -1771774886 }; TransferFormula (1.000000, 1.000000, 1.000000)

5/14/15 6:40:02.925 PM com.apple.AmbientDisplayAgent[199]: AMBD Agent: xpc connection became invalid during event handler

5/14/15 6:40:03.000 PM kernel[0]: USBMSC Identifier (non-unique): 515A47593034313896 0x4b8 0x899 0x100, 2

5/14/15 6:40:03.586 PM WindowServer[152]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'. Run with arg = -discovery

5/14/15 6:40:03.624 PM WindowServer[152]: CGXSetDisplayColorProfileAndTransfer: Display 0x0424a5c7: Unit 3; ColorProfile { -1771774886 }; TransferFormula (1.000000, 1.000000, 1.000000)

5/14/15 6:40:03.625 PM com.apple.AmbientDisplayAgent[199]: AMBD Agent: xpc connection became invalid during event handler

5/14/15 6:40:03.641 PM DMProxy[1565]: AMBD Services: connection interrupted: com.apple.AmbientDisplayAgent (Connection interrupted)

5/14/15 6:40:03.651 PM com.apple.AmbientDisplayAgent[199]: AmbientDisplayAgent started

5/14/15 6:40:03.655 PM com.apple.AmbientDisplayAgent[199]: AMBD initializing devices

5/14/15 6:40:03.678 PM WindowServer[152]: CGXSetDisplayColorProfileAndTransfer: Display 0x0424a5c7: Unit 3; ColorProfile { -1771774886 }; TransferFormula (1.000000, 1.000000, 1.000000)

5/14/15 6:40:03.682 PM com.apple.AmbientDisplayAgent[199]: AMBD Agent: xpc connection became invalid during event handler

5/14/15 6:40:03.867 PM WindowServer[152]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'. Run with arg = -discovery

5/14/15 6:40:03.906 PM WindowServer[152]: CGXSetDisplayColorProfileAndTransfer: Display 0x0424a5c7: Unit 3; ColorProfile { -1771774886 }; TransferFormula (1.000000, 1.000000, 1.000000)

5/14/15 6:40:03.906 PM com.apple.AmbientDisplayAgent[199]: AMBD Agent: xpc connection became invalid during event handler

5/14/15 6:40:03.921 PM DMProxy[1567]: AMBD Services: connection interrupted: com.apple.AmbientDisplayAgent (Connection interrupted)

5/14/15 6:40:03.929 PM com.apple.AmbientDisplayAgent[199]: AmbientDisplayAgent started

5/14/15 6:40:03.933 PM com.apple.AmbientDisplayAgent[199]: AMBD initializing devices

5/14/15 6:40:03.961 PM WindowServer[152]: CGXSetDisplayColorProfileAndTransfer: Display 0x0424a5c7: Unit 3; ColorProfile { -1771774886 }; TransferFormula (1.000000, 1.000000, 1.000000)

5/14/15 6:40:03.964 PM com.apple.AmbientDisplayAgent[199]: AMBD Agent: xpc connection became invalid during event handler

My 15” MBP Early 2011 finally kicked the can last week. I sent it off for repairs and came back to me a few days later. They replaced the logic board with a refurbished one (it didn’t have any serial numbers or identifying marks on it) At first, I was having all sorts of issues, most notably extremely long boot times on shutdown / restarts. After the usual troubleshooting (NVRAM resets, etc) things seemed to iron themselves out.

However, lately I have been experiencing a new issue that is very concerning. I have my computer attached to a Thunderbolt monitor and without warning, the display goes completely black. After unplugging / replugging the display from the TB port, the display turns back on and works as usual. But the problem seems to be occurring more frequently, and it reminds of me the symptoms my machine was experiencing just prior to the the graphics failure.

Here are the relevant parts of the Console reading:

5/14/15 6:39:46.000 PM kernel[0]: IOThunderboltSwitch<0xffffff8021fc1e00>(0x0)::listenerCallback - Thunderbolt HPD packet for route = 0x0 port = 1 unplug = 1

5/14/15 6:39:46.000 PM kernel[0]: [ PCI configuration begin ]

5/14/15 6:39:46.000 PM kernel[0]: [ PCI configuration end, bridges 12, devices 23 ]

5/14/15 6:39:46.000 PM kernel[0]: AppleBCM5701Ethernet [en4]: willTerminate - offline

5/14/15 6:39:46.000 PM kernel[0]: IOThunderboltSwitch<0xffffff8021fc1e00>(0x0)::listenerCallback - Thunderbolt HPD packet for route = 0x0 port = 2 unplug = 1

5/14/15 6:39:46.996 PM WindowServer[152]: Received display connect changed for display 0x3f003e

5/14/15 6:39:46.997 PM WindowServer[152]: Found 30 modes for display 0x003f003e [30, 0]

5/14/15 6:39:46.997 PM WindowServer[152]: Display 0x003f003e changed state to online

5/14/15 6:39:47.003 PM WindowServer[152]: description_for_mode_number: IOFBGetPixelInformation failed (-536870185)

5/14/15 6:39:47.005 PM WindowServer[152]: Received display connect changed for display 0x424a5c7

5/14/15 6:39:47.005 PM WindowServer[152]: Found 1 modes for display 0x0424a5c7 [1, 0]

5/14/15 6:39:47.005 PM WindowServer[152]: Display 0x0424a5c7 changed state to offline

5/14/15 6:39:47.009 PM WindowServer[152]: Received display connect changed for display 0x3f0040

5/14/15 6:39:47.009 PM WindowServer[152]: Found 1 modes for display 0x003f0040 [1, 0]

5/14/15 6:39:47.026 PM WindowServer[152]: Display 0x04280142: GL mask 0x5; bounds (0, 0)[1680 x 1050], 30 modes available

Main, Active, on-line, enabled, built-in, boot, Vendor 610, Model a005, S/N 0, Unit 2, Rotation 0

UUID 0xde23f9c1cf7b915b2afe83aecee77b54, ColorSpace { 1546103174 }

5/14/15 6:39:47.026 PM WindowServer[152]: Display 0x003f003d: GL mask 0x2; bounds (3584, 0)[1 x 1], 2 modes available

off-line, enabled, OpenGL-accel, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 1, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

5/14/15 6:39:47.026 PM WindowServer[152]: GLCompositor: GL renderer id 0x01024301, GL mask 0x00000003, accelerator 0x0000432b, unit 0, caps QEX|MIPMAP, vram 451 MB

texture max 8192, viewport max {8192, 8192}, extensions NPOT|GLSL|FLOAT

5/14/15 6:39:47.026 PM WindowServer[152]: Display 0x003f0040: GL mask 0x10; bounds (3585, 0)[1 x 1], 1 modes available

off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 4, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

5/14/15 6:39:47.027 PM WindowServer[152]: Display 0x003f003f: GL mask 0x8; bounds (0, 0)[1 x 1], 1 modes available

off-line, enabled, OpenGL-accel, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 3, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff, ColorSpace { -1771774886 }

5/14/15 6:39:47.027 PM WindowServer[152]: GLCompositor: GL renderer id 0x01021b06, GL mask 0x0000001c, accelerator 0x00002453, unit 2, caps QEX|MIPMAP, vram 1024 MB

texture max 16384, viewport max {16384, 16384}, extensions NPOT|GLSL|FLOAT

5/14/15 6:39:47.042 PM WindowServer[152]: Display 0x04280142: Unit 2: Startup Mode 1680 x 1050, CGSThirtytwoBitColor, Resolution 1, ioModeID 0x80004000, ioModeDepth 0x1, IOReturn 0x0

5/14/15 6:39:47.043 PM WindowServer[152]: CGXDisplaysDidReconfigure: Display added

5/14/15 6:39:47.043 PM WindowServer[152]: CGXDisplaysDidReconfigure: Display removed

5/14/15 6:39:47.045 PM WindowServer[152]: Display 0x04280142: GL mask 0x5; bounds (0, 0)[1680 x 1050], 30 modes available

Main, Active, on-line, enabled, built-in, boot, Vendor 610, Model a005, S/N 0, Unit 2, Rotation 0

UUID 0xde23f9c1cf7b915b2afe83aecee77b54, ColorSpace { 1546103174 }

5/14/15 6:39:47.045 PM WindowServer[152]: _CGXGLDisplayContextForDisplayDevice: acquired display context (0x7fc5da917da0) - enabling OpenGL

5/14/15 6:39:47.045 PM WindowServer[152]: GLCompositor: GL renderer id 0x01021b06, GL mask 0x0000001c, accelerator 0x00002453, unit 2, caps QEX|MIPMAP, vram 1024 MB

texture max 16384, viewport max {16384, 16384}, extensions NPOT|GLSL|FLOAT

5/14/15 6:39:47.045 PM WindowServer[152]: Display 0x003f003d: GL mask 0x2; bounds (2704, 0)[1 x 1], 2 modes available

off-line, enabled, OpenGL-accel, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 1, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

5/14/15 6:39:47.046 PM WindowServer[152]: GLCompositor: GL renderer id 0x01024301, GL mask 0x00000003, accelerator 0x0000432b, unit 0, caps QEX|MIPMAP, vram 451 MB

texture max 8192, viewport max {8192, 8192}, extensions NPOT|GLSL|FLOAT

5/14/15 6:39:47.046 PM WindowServer[152]: Display 0x003f0040: GL mask 0x10; bounds (2705, 0)[1 x 1], 1 modes available

off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 4, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

5/14/15 6:39:47.046 PM WindowServer[152]: Display 0x003f003f: GL mask 0x8; bounds (2706, 0)[1 x 1], 1 modes available

off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 3, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff, ColorSpace { -1771774886 }

5/14/15 6:39:47.050 PM WindowServer[152]: MPAccessSurfaceForDisplayDevice: Set up page flip mode on display 0x04280142 device: 0x7fc5da917da0  isBackBuffered: 1 numComp: 3 numDisp: 3

5/14/15 6:39:47.067 PM WindowServer[152]: Received display connect changed for display 0x4280142

5/14/15 6:39:47.080 PM WindowServer[152]: Found 18 modes for display 0x04280142 [18, 0]

5/14/15 6:39:47.097 PM WindowServer[152]: CGXMuxAcknowledge: Posting glitchless acknowledge

5/14/15 6:39:47.195 PM WindowServer[152]: Received display connect changed for display 0x4280142

5/14/15 6:39:47.196 PM WindowServer[152]: Found 1 modes for display 0x04280142 [1, 0]

5/14/15 6:39:47.196 PM WindowServer[152]: Received display connect changed for display 0x3f003f

5/14/15 6:39:47.196 PM WindowServer[152]: Found 1 modes for display 0x003f003f [1, 0]

5/14/15 6:39:47.196 PM WindowServer[152]: Received display connect changed for display 0x3f0040

5/14/15 6:39:47.196 PM WindowServer[152]: Found 1 modes for display 0x003f0040 [1, 0]

5/14/15 6:39:47.423 PM identityservicesd[294]: <IMMacNotificationCenterManager: 0x7fbbf113f7a0>: notification observer: com.apple.iChat  notification: __CFNotification 0x7fbbf1122f00 {name = _NSDoNotDisturbEnabledNotification}

5/14/15 6:39:47.423 PM imagent[299]: <IMMacNotificationCenterManager: 0x7fa389e0e360>: notification observer: com.apple.FaceTime  notification: __CFNotification 0x7fa38b804eb0 {name = _NSDoNotDisturbEnabledNotification}

5/14/15 6:39:47.449 PM imagent[299]: <IMMacNotificationCenterManager: 0x7fa389e0e360>:    NC Disabled: NO

5/14/15 6:39:47.449 PM identityservicesd[294]: <IMMacNotificationCenterManager: 0x7fbbf113f7a0>:    NC Disabled: NO

5/14/15 6:39:47.463 PM identityservicesd[294]: <IMMacNotificationCenterManager: 0x7fbbf113f7a0>:  DND Enabled: YES

5/14/15 6:39:47.463 PM imagent[299]: <IMMacNotificationCenterManager: 0x7fa389e0e360>:  DND Enabled: YES

5/14/15 6:39:47.463 PM imagent[299]: <IMMacNotificationCenterManager: 0x7fa389e0e360>: Updating enabled: NO  (Topics: (

))

5/14/15 6:39:47.463 PM identityservicesd[294]: <IMMacNotificationCenterManager: 0x7fbbf113f7a0>: Updating enabled: NO  (Topics: (

))

5/14/15 6:39:47.464 PM identityservicesd[294]: <IMMacNotificationCenterManager: 0x7fbbf131e0b0>: notification observer: com.apple.iChat  notification: __CFNotification 0x7fbbf10196c0 {name = _NSDoNotDisturbEnabledNotification}

5/14/15 6:39:47.470 PM identityservicesd[294]: <IMMacNotificationCenterManager: 0x7fbbf131e0b0>:    NC Disabled: NO

5/14/15 6:39:47.488 PM identityservicesd[294]: <IMMacNotificationCenterManager: 0x7fbbf131e0b0>:  DND Enabled: YES

5/14/15 6:39:47.488 PM identityservicesd[294]: <IMMacNotificationCenterManager: 0x7fbbf131e0b0>: Updating enabled: NO  (Topics: (

))

5/14/15 6:39:49.006 PM WindowServer[152]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'. Run with arg = -discovery

5/14/15 6:39:49.041 PM WindowServer[152]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'. Run with arg = -discovery

5/14/15 6:39:49.054 PM WindowServer[152]: CGXSetDisplayColorProfileAndTransfer: Display 0x04280142: Unit 2; ColorProfile { 1546103174 }; TransferTable (256, 12)

5/14/15 6:39:49.055 PM com.apple.AmbientDisplayAgent[199]: AMBD Agent: xpc connection became invalid during event handler

5/14/15 6:39:49.083 PM WindowServer[152]: CGXSetDisplayColorProfileAndTransfer: Display 0x04280142: Unit 2; ColorProfile { 1546103174 }; TransferTable (256, 12)

5/14/15 6:39:49.084 PM com.apple.AmbientDisplayAgent[199]: AMBD Agent: xpc connection became invalid during event handler

5/14/15 6:39:49.093 PM DMProxy[1560]: AMBD Services: connection interrupted: com.apple.AmbientDisplayAgent (Connection interrupted)

5/14/15 6:39:49.100 PM com.apple.AmbientDisplayAgent[199]: AmbientDisplayAgent started

5/14/15 6:39:49.105 PM com.apple.AmbientDisplayAgent[199]: AMBD initializing devices

5/14/15 6:39:49.116 PM WindowServer[152]: CGXSetDisplayColorProfileAndTransfer: Display 0x04280142: Unit 2; ColorProfile { 1546103174 }; TransferTable (256, 12)

5/14/15 6:39:49.119 PM com.apple.AmbientDisplayAgent[199]: AMBD Agent: xpc connection became invalid during event handler

5/14/15 6:39:49.130 PM DMProxy[1561]: AMBD Services: connection interrupted: com.apple.AmbientDisplayAgent (Connection interrupted)

5/14/15 6:39:49.137 PM com.apple.AmbientDisplayAgent[199]: AmbientDisplayAgent started

5/14/15 6:39:49.142 PM com.apple.AmbientDisplayAgent[199]: AMBD initializing devices

5/14/15 6:39:49.153 PM WindowServer[152]: CGXSetDisplayColorProfileAndTransfer: Display 0x04280142: Unit 2; ColorProfile { 1546103174 }; TransferTable (256, 12)

5/14/15 6:39:49.155 PM com.apple.AmbientDisplayAgent[199]: AMBD Agent: xpc connection became invalid during event handler

5/14/15 6:39:59.000 PM kernel[0]: AppleThunderboltGenericHAL::earlyWake - complete - took 0 milliseconds

5/14/15 6:39:59.000 PM kernel[0]: AppleThunderboltDPPathManager<0xffffff8030a99700>::createPath - path type 0x1: Initial Credits [int=0 src=0 dst=0] NFC Credits [int=14 src=5 dst=14]

5/14/15 6:39:59.000 PM kernel[0]: AppleThunderboltDPPathManager<0xffffff8030a99700>::createPath - path type 0x2: Initial Credits [int=2 src=2 dst=1] NFC Credits [int=0 src=0 dst=0]

5/14/15 6:39:59.000 PM kernel[0]: AppleThunderboltDPPathManager<0xffffff8030a99700>::createPath - path type 0x4: Initial Credits [int=2 src=7 dst=1] NFC Credits [int=0 src=0 dst=0]

5/14/15 6:39:59.734 PM WindowServer[152]: Received display connect changed for display 0x4280142

5/14/15 6:39:59.750 PM WindowServer[152]: Found 30 modes for display 0x04280142 [30, 0]

5/14/15 6:39:59.767 PM WindowServer[152]: Received display connect changed for display 0x3f003f

5/14/15 6:39:59.768 PM WindowServer[152]: Found 1 modes for display 0x003f003f [1, 0]

5/14/15 6:39:59.768 PM WindowServer[152]: Received display connect changed for display 0x3f0040

5/14/15 6:39:59.768 PM WindowServer[152]: Found 1 modes for display 0x003f0040 [1, 0]

5/14/15 6:39:59.783 PM WindowServer[152]: CGXMuxAcknowledge: Posting glitchless acknowledge

5/14/15 6:39:59.815 PM WindowServer[152]: MPAccessSurfaceForDisplayDevice: Set up page flip mode on display 0x04280142 device: 0x7fc5da917da0  isBackBuffered: 1 numComp: 3 numDisp: 3

5/14/15 6:40:00.704 PM WindowServer[152]: Received display connect changed for display 0x4280142

5/14/15 6:40:00.705 PM WindowServer[152]: Found 1 modes for display 0x04280142 [1, 0]

5/14/15 6:40:00.705 PM WindowServer[152]: Display 0x04280142 changed state to offline

5/14/15 6:40:00.711 PM WindowServer[152]: No display devices are on-line. Switching to virtual display mode

5/14/15 6:40:00.714 PM WindowServer[152]: Received display connect changed for display 0x3f003f

5/14/15 6:40:00.716 PM WindowServer[152]: Found 32 modes for display 0x003f003f [32, 0]

5/14/15 6:40:00.716 PM WindowServer[152]: Display 0x003f003f changed state to online

5/14/15 6:40:00.725 PM WindowServer[152]: New display device coming on-line. Switching from virtual display mode

5/14/15 6:40:00.725 PM WindowServer[152]: Received display connect changed for display 0x3f0040

5/14/15 6:40:00.725 PM WindowServer[152]: Found 1 modes for display 0x003f0040 [1, 0]

5/14/15 6:40:00.727 PM WindowServer[152]: Received display connect changed for display 0x3f003e

5/14/15 6:40:00.727 PM WindowServer[152]: Found 1 modes for display 0x003f003e [1, 0]

5/14/15 6:40:00.745 PM WindowServer[152]: MPServiceForDisplayDevice: Invalid device alias (0)

5/14/15 6:40:00.745 PM WindowServer[152]: Display 0x003f003d: GL mask 0x2; bounds (2704, 0)[1 x 1], 2 modes available

off-line, enabled, OpenGL-accel, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 1, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

5/14/15 6:40:00.746 PM WindowServer[152]: GLCompositor: GL renderer id 0x01024301, GL mask 0x00000003, accelerator 0x0000432b, unit 0, caps QEX|MIPMAP, vram 451 MB

texture max 8192, viewport max {8192, 8192}, extensions NPOT|GLSL|FLOAT

5/14/15 6:40:00.746 PM WindowServer[152]: Display 0x003f0040: GL mask 0x10; bounds (2705, 0)[1 x 1], 1 modes available

off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 4, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

5/14/15 6:40:00.746 PM WindowServer[152]: Display 0x0424a5c7: GL mask 0x8; bounds (-2560, 0)[2560 x 1440], 32 modes available

Main, Active, on-line, enabled, Vendor 610, Model 9227, S/N 15222c04, Unit 3, Rotation 0

UUID 0x6ebf046a59052d1f3c08730b87a48911, ColorSpace { -1771774886 }

5/14/15 6:40:00.746 PM WindowServer[152]: Display 0x003f003e: GL mask 0x5; bounds (0, 0)[1 x 1], 1 modes available

off-line, enabled, boot, OpenGL-accel, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 2, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff, ColorSpace { 1546103174 }

5/14/15 6:40:00.746 PM WindowServer[152]: GLCompositor: GL renderer id 0x01021b06, GL mask 0x0000001c, accelerator 0x00002453, unit 2, caps QEX|MIPMAP, vram 1024 MB

texture max 16384, viewport max {16384, 16384}, extensions NPOT|GLSL|FLOAT

5/14/15 6:40:00.765 PM WindowServer[152]: Display 0x0424a5c7: Unit 3: Startup Mode 2560 x 1440, CGSThirtytwoBitColor, Resolution 1, ioModeID 0x80003000, ioModeDepth 0x1, IOReturn 0x0

5/14/15 6:40:00.766 PM WindowServer[152]: CGXDisplaysDidReconfigure: Display added

5/14/15 6:40:00.766 PM WindowServer[152]: CGXDisplaysDidReconfigure: Display removed

5/14/15 6:40:00.769 PM WindowServer[152]: Display 0x0424a5c7: GL mask 0x8; bounds (0, 0)[2560 x 1440], 32 modes available

Main, Active, on-line, enabled, Vendor 610, Model 9227, S/N 15222c04, Unit 3, Rotation 0

UUID 0x6ebf046a59052d1f3c08730b87a48911, ColorSpace { -1771774886 }

5/14/15 6:40:00.769 PM WindowServer[152]: _CGXGLDisplayContextForDisplayDevice: acquired display context (0x7fc5da923440) - enabling OpenGL

5/14/15 6:40:00.769 PM WindowServer[152]: GLCompositor: GL renderer id 0x01021b06, GL mask 0x0000001c, accelerator 0x00002453, unit 2, caps QEX|MIPMAP, vram 1024 MB

texture max 16384, viewport max {16384, 16384}, extensions NPOT|GLSL|FLOAT

5/14/15 6:40:00.769 PM WindowServer[152]: Display 0x003f003d: GL mask 0x2; bounds (3584, 0)[1 x 1], 2 modes available

off-line, enabled, OpenGL-accel, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 1, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

5/14/15 6:40:00.769 PM WindowServer[152]: GLCompositor: GL renderer id 0x01024301, GL mask 0x00000003, accelerator 0x0000432b, unit 0, caps QEX|MIPMAP, vram 451 MB

texture max 8192, viewport max {8192, 8192}, extensions NPOT|GLSL|FLOAT

5/14/15 6:40:00.769 PM WindowServer[152]: Display 0x003f0040: GL mask 0x10; bounds (3585, 0)[1 x 1], 1 modes available

off-line, enabled, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 4, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff

5/14/15 6:40:00.769 PM WindowServer[152]: Display 0x003f003e: GL mask 0x5; bounds (3586, 0)[1 x 1], 1 modes available

off-line, enabled, boot, Vendor ffffffff, Model ffffffff, S/N ffffffff, Unit 2, Rotation 0

UUID 0xffffffffffffffffffffffffffffffff, ColorSpace { 1546103174 }

5/14/15 6:40:00.778 PM WindowServer[152]: MPAccessSurfaceForDisplayDevice: Set up page flip mode on display 0x0424a5c7 device: 0x7fc5da923440  isBackBuffered: 1 numComp: 3 numDisp: 3

My 15” MBP Early 2011 finally kicked the can last week. I sent it off for repairs and came back to me a few days later. They replaced the logic board with a refurbished one (it didn’t have any serial numbers or identifying marks on it) At first, I was having all sorts of issues, most notably extremely long boot times on shutdown / restarts. After the usual troubleshooting (NVRAM resets, etc) things seemed to iron themselves out.

However, lately I have been experiencing a new issue that is very concerning. I have my computer attached to a Thunderbolt monitor and without warning, the display goes completely black. After unplugging / replugging the display from the TB port, the display turns back on and works as usual. But the problem seems to be occurring more frequently, and it reminds of me the symptoms my machine was experiencing just prior to the the graphics failure.

I have the console readout if that’s helpful.

Well I finally got my 2011 MBP 15 back after it taking Apple 8 days to replace the logic board. Fingers crossed, so far it seems to be OK and even seems to be more responsive - now I swapped out my RAM and HDD upgrades to put it back in its original state before I returned it and so far I'm running with that and booting from an external SSD via USB but it still feels quicker. Next step will be to open it up, replace the drive with the SSD and 16Gb RAM and check all still OK. Just need to catch up on a bit of work first.

I've also got my MBP connected to a Thunderbolt display, bought both together and interestingly, since the start I experienced times when the display didn't connect or just suddenly showed a black screen. I understood it to be a 'known issue' as several reports were doing the rounds so I just lived with it. Since this logic board was replaced however, it does not seem to have happened at all yet (hope I'm not speaking too soon).

Whilst I was waiting for them to fix this, I spent a bit of time upgrading an old white Macbook circa 2007 - I'd just got it back to a working machine when they called to say my MBP was fixed. I've now finally managed to get it running Mountain Lion so can transfer and work on files between the two. At least I'll have a backup machine now if it goes pear-shaped again!

Here you ca see Apple approach of applying thermal compound and it didn't change:

http://rixstep.com/1/20060521,00.shtml

My 2011 MBP was as reliable as a Swiss watch till the keyboard started failing. The logic board and bottom case were replaced under a three year AppleCare warranty at the Apple Store in Alderwood Mall, Seattle in December last year.

Problem solved. Except for the fact that the new logic board came complete with a faulty GPU. Since then, the MBP has been in three times to an Apple repairer in Chiang Mai, Thailand:

1. Logic board replaced - same problem happened almost immediately but this time, the GPU didn't fail Apple's graphics test, so the technician claimed it was a software issue.

2. So they formatted the drive and reinstalled OS X - same problem after a couple of days.

3. So they replaced the logic board again.

So far so good after two days but I'm not holding my breath. All up, I've been without my computer for over four weeks across four different repair attempts. The store has been great but like everyone else, I have no idea what they're actually putting into my Mac - new spec board, old board (and they're hoping for the best), refurbished board.

It's a **** poor show from Apple - some clear communication would go a long way to making me feel comfortable about the products.

Let's see what happens this time....at least the repairer is just around the corner in case I need to go back.

Do remind Apple that your patience is not boundless, and you would appreciate a solution to the problem instead of just another attempt to solve it.  Some people have reported in this discussion that Apple has given them a new machine after three failed attempts to solve the GPU problem.

thought i'd pop in and give you all a good giggle. sitting here doing my thing, playing a couple games & watching Mad Men reruns and the screen goes black. I'm thinking "(expletive) here we go again, just like the others said."

nevermind the fact that the battery warning just hadn't popped up and it was just out of juice. guess it does help to plug the thing in!

lawrence89 wrote:

 

I'm from the UK.

 

I took my 2011 15" MacBook Pro to my local Apple Store who replaced my logic board under the 'MacBook Pro Repair Extension Program for Video Issues' on Tuesday 5th May, the part arrived on the 6th May and it was ready the same day I took it in to be fixed (7th May).

Even though it passed their video test in store, I had pictures of the computer video failing on my phone, which they looked at with an immediate look of familiarity (pursed lips and nodded head and an almost roll of the eyes - it was clear they'd seen this before).

 

Anyway, yeah, they replaced my logic board but now I'm having constant memory issues! The computer will crash and either; 1 - Hang with sound repeating or; 2 - crash with three loud beeps (signalling RAM is either broken or not seated correctly). So I've tried 3 different RAM kits (2 Crucial kits that work in other Macs fine and one Apple kit that came in the laptop originally), all have the same problem when I move the computer slightly.

So basically I've diagnosed that the RAM slots or the RAM clips on the new logic board do not embrace the RAM sticks properly causing a very loose connection and when the computer is moved (slid on a table, screen adjusted, picked up, etc...) the RAM modules dislodge by a tiny amount, but enough to cause a problem. I have booked this in at the Apple Store on Thursday and will keep you updated.

 

I'm just writing this here in case it's some other widespread problem with all these new boards they're replacing peoples' with.

Got my computer back on the same day I took it in for the second repair and all is working fine!

I have to agree with Richard on what he said.  I am currently in the UK but I originally bought the machine in Hong Kong. I have the top of the range one and after 2 display changes, 5 Logic Board changes (4/5 due to GPU issues) and pretty much everything in the machine which luckily was free due to having AppleCare.  The in-store Geniuses and Team Leader finally told me after 1/2hr of discussions with me and the staff members who fixed my machine that due to failure of the boards being so high on my machine, have decided to replace my 2011 machine with the 2014 rMBP and hopefully it will arrive next week!

Congratulations! Patience and doggedly persisting in changing the logic boards seems to work now for a number of us. After 4 logic board changes I got my mid 2014 rMBP in January and, touch wood and cross my fingers for the future, it's been working perfectly since.

Good luck with yours!

Nickiwi

I'm sure this has been discussed ad nauseum but I can't seem to find a definitive answer and looking through 864 pages of posts isn't really something I have time for. So I'll just ask, is the graphics card that causes the issues with the logic board the discrete or integrated card?

If one were to stress test their MBP and use gfxcardstatus, should you use the discrete or integrated card or allow switching between the 2?

Hi mamihlapinatapai! its the discrete card (AMD) one that causes the issues with the logic board.  I find using Geeks3D GPU to stress test very helpful in seeing if the card has a problem or not.

Well it's been a week or so and my 15" is running like a champion after the second logic board replacement and an OS reinstall.

I still have an eerie feeling every time I kick Photoshop or iMovie into life... just waiting for the screen to go crazy again. Not a good feeling but I assume it'll go away if the Mac keeps running properly this time.

I'd also like to post an update since its a week since I got my MBP 15 2011 back after logic board replacement. So far so good...

I put my 16Gb RAM back in along with 750Gb WD Black HDD and it might be me but it seems to be a bit more responsive. I previously had a Crucial SSD as the boot drive and the WD in the Superdrive slot - I've not done that this time, just in case, but it seems as quick as when using the SSD. Bizarre. Before it was fixed I had also experienced regular intermittent Bluetooth dropouts but so far, I haven't once lost the mouse connection.

I've not really thrashed it much yet but it has handled image processing of large RAW files pretty well, along with searching large image library files in Capture One - that was where it used to turn the fans on most and actually what I was doing when it finally died.

I keep getting a brief uh-oh moment every time the screen goes black for a moment but so far... (fingers crossed)