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HT3131: Mac notebooks: How to use your computer in closed clamshell (display closed) mode with an external display

Learn about Mac notebooks: How to use your computer in closed clamshell (display closed) mode with an external display

HT3131 Clamshell Mode Doesn't Work after Upgrade to 10.8.2

10547 Views 32 Replies Latest reply: Jan 17, 2013 11:26 AM by famouswolf RSS
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Lindberg Calculating status...
Currently Being Moderated
Sep 21, 2012 12:12 AM

After I upgrade to 10.8.2 yesterday, my MBA doesn't work in clamshell mode.  As soon as it is waken with USB keyboard, it turns itself off in a few second.  I need to leave the display open in order to use the external display.

MacBook Air (11-INCH, MID 2011), OS X Mountain Lion (10.8.2)
  • Calpa Calculating status...

    Want to add that this isn't model specific; I'm having the same issue in 10.8.2 on a late 2008 unibody MacBook.

     

    I can temporarily solve it rebooting and quickly shutting the lid before booting again.. but after I've put it to sleep again the problem is back.

  • Ba55Man Level 1 Level 1 (0 points)

    I can't get my external monitor to work at all on my mid-2010 MBP after upgrading to 10.8.2.  Tried an SMC Reset and a PRAM reset and neither one worked.

  • SactoEric Calculating status...

    Same problem with my MBA 13" Mid 2011. I'm using this with an older Cinema Display and an Apple adapter. When the laptop is in clamshell mode, the cinema display will work for a few secords only, but with the laptop open it works all the time.

  • HernanSz Calculating status...

    I'm having the same issue with my late 2011 13" MBP and it's driving me crazy.

     

    When I wake the computer with the external keyboard (with the lid closed and the external monitor connected) it will just turn on the screen of the external monitor, which remains black, and then promptly goes into energy saver mode.

     

    The only way to use the external monitor is with the lid open.

     

    I'm hoping someone finds a solution soon.

  • yectep Level 1 Level 1 (10 points)

    I'm in the same boat here with a late 2011 Macbook Pro 15". I've been having it intermittently ith < 10.8.2. Upgraded the other day and now it's completely unusable.

  • Yuval Tobias Level 1 Level 1 (5 points)

    Same here with 15" Mid-2010 MacBook Pro -- and for me it was after upgrading from Lion. I thought that waiting for a couple of minor versions will not cause these kinds of problems...

  • rabman Calculating status...

    Another "me too," with 13" two month old Macbook Pro.  My external monitor keeps turning off, I don't get full screen on the external monitor in clamshell which I did before the upgrade.  And then the external monitor goes into energy saver mode.  Good thing I don't have rush projects to work on.  Oh wait, I am working on rush projects...

  • doobeedoobeedoo Calculating status...

    Yep, same problem here. Of all the annoyances that Mountain Lion brought, this has to be the most infuriating. FIX THIS ASAP Apple!

  • yectep Level 1 Level 1 (10 points)

    So an update on the troubleshooting I've done so far:

     

    Reinstalling ML does not help. I took the dive, and considering I did an upgrade to ML from Lion, I thought it might have been some residual setting, file or whatnot. Day 1 into brand new Mountain Lion install, and it still does the same thing.

     

    I have an LED Cinema Display (27"). When I close the lid after plugging the monitor in, the computer doesn't freeze immediately. During the time you'd expect that familiar blue screen to fade in/out, I can still use the mouse, though WindowServer seems to be completely locked up. Then, everything goes poof - computer goes to energy saver mode, no way to wake up, can't even unplug monitor to get things working again.

     

    Here is my system log from when I switched to clamshell up until I got ****** and did a hard reset.

     

    23/9/12 12:23:24.570 PM WindowServer[98]: Display 0x04249f05: GL mask 0x2; bounds (1440, 0)[2560 x 1440], 42 modes available

    Active, on-line, enabled, OpenGL-accel, Vendor 610, Model 9226, S/N 160a1686, Unit 1, Rotation 0

    UUID 0x0000061000009226160a168600000000, ColorProfile { 3, "LED Cinema Display"}

    23/9/12 12:23:24.570 PM WindowServer[98]: GLCompositor: GL renderer id 0x01021b06, GL mask 0x00000007, accelerator 0x0000473f, unit 0, caps QEX|QGL|MIPMAP, vram 1024 MB

    texture units 8, texture max 16384, viewport max {16384, 16384}, extensions FPRG|NPOT|GLSL|FLOAT

    23/9/12 12:23:24.876 PM WindowServer[98]: Created shield window 0x77 for display 0x042728c0

    23/9/12 12:23:24.876 PM WindowServer[98]: Created shield window 0x78 for display 0x003f003e

    23/9/12 12:23:24.892 PM WindowServer[98]: Created shield window 0x79 for display 0x04249f05

    23/9/12 12:23:24.900 PM WindowServer[98]: Display 0x042728c0: MappedDisplay Unit 0: Startup Mode 1440 x 900, CGSThirtytwoBitColor, Resolution 1, IOMode 0x43e, IODepth 0x1, IOReturn 0x0

    23/9/12 12:23:24.900 PM WindowServer[98]: Display 0x04249f05: MappedDisplay Unit 1: Startup Mode 2560 x 1440, CGSThirtytwoBitColor, Resolution 1, IOMode 0x43e, IODepth 0x1, IOReturn 0x0

    23/9/12 12:23:24.908 PM WindowServer[98]: MPAccessSurfaceForDisplayDevice: Set up page flip mode on display 0x04249f05 device: 0x1080c8d30  isBackBuffered: 1 numComp: 3 numDisp: 3

    23/9/12 12:23:25.003 PM WindowServer[98]: MPAccessSurfaceForDisplayDevice: Set up page flip mode on display 0x042728c0 device: 0x1080c8320  isBackBuffered: 1 numComp: 3 numDisp: 3

    23/9/12 12:23:25.055 PM WindowServer[98]: Display 0x04249f05: GL mask 0x2; bounds (0, 0)[2560 x 1440], 42 modes available

    Main, Active, on-line, enabled, OpenGL-accel, Vendor 610, Model 9226, S/N 160a1686, Unit 1, Rotation 0

    UUID 0x0000061000009226160a168600000000, ColorProfile { 3, "LED Cinema Display"}

    23/9/12 12:23:25.055 PM WindowServer[98]: GLCompositor: GL renderer id 0x01021b06, GL mask 0x00000007, accelerator 0x0000473f, unit 0, caps QEX|QGL|MIPMAP, vram 1024 MB

    texture units 8, texture max 16384, viewport max {16384, 16384}, extensions FPRG|NPOT|GLSL|FLOAT

    23/9/12 12:23:25.056 PM WindowServer[98]: Display 0x042728c0: GL mask 0x9; bounds (-1440, 0)[1440 x 900], 39 modes available

    Active, on-line, enabled, built-in, boot, OpenGL-accel, Vendor 610, Model 9ca3, S/N 0, Unit 0, Rotation 0

    UUID 0x0000061000009ca300000000042728c0, ColorProfile { 2, "Color LCD"}

    23/9/12 12:23:25.056 PM WindowServer[98]: GLCompositor: GL renderer id 0x01021b06, GL mask 0x00000007, accelerator 0x0000473f, unit 0, caps QEX|QGL|MIPMAP, vram 1024 MB

    texture units 8, texture max 16384, viewport max {16384, 16384}, extensions FPRG|NPOT|GLSL|FLOAT

    23/9/12 12:23:25.056 PM WindowServer[98]: Display 0x003f003e: GL mask 0x4; bounds (3584, 0)[1 x 1], 1 modes available

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

    UUID 0xffffffffffffffffffffffff003f003e

    23/9/12 12:23:26.899 PM WindowServer[98]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'.

    23/9/12 12:23:26.904 PM WindowServer[98]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'.

    23/9/12 12:23:26.949 PM WindowServer[98]: Display 0x04249f05: MappedDisplay Unit 1; ColorProfile { 3, "LED Cinema Display"}; TransferTable (256, 3)

    23/9/12 12:23:26.950 PM WindowServer[98]: Display 0x042728c0: MappedDisplay Unit 0; ColorProfile { 2, "Color LCD"}; TransferTable (256, 3)

    23/9/12 12:23:26.953 PM WindowServer[98]: Display 0x04249f05: MappedDisplay Unit 1; ColorProfile { 3, "LED Cinema Display"}; TransferTable (256, 3)

    23/9/12 12:23:26.954 PM WindowServer[98]: Display 0x042728c0: MappedDisplay Unit 0; ColorProfile { 2, "Color LCD"}; TransferTable (256, 3)

    23/9/12 12:23:26.969 PM WindowServer[98]: Display 0x04249f05: MappedDisplay Unit 1; ColorProfile { 3, "LED Cinema Display"}; TransferTable (256, 3)

    23/9/12 12:23:26.970 PM WindowServer[98]: Display 0x042728c0: MappedDisplay Unit 0; ColorProfile { 2, "Color LCD"}; TransferTable (256, 3)

    23/9/12 12:23:26.973 PM WindowServer[98]: Display 0x04249f05: MappedDisplay Unit 1; ColorProfile { 3, "LED Cinema Display"}; TransferTable (256, 3)

    23/9/12 12:23:26.974 PM WindowServer[98]: Display 0x042728c0: MappedDisplay Unit 0; ColorProfile { 2, "Color LCD"}; TransferTable (256, 3)

    23/9/12 12:23:38.576 PM CalendarAgent[204]: *** -[IADomainCache init]: IA domains cache is out of date.

    23/9/12 12:23:46.000 PM kernel[0]: considerRebuildOfPrelinkedKernel com.apple.driver.AppleUSBCDC triggered rebuild

    23/9/12 12:23:46.557 PM VDCAssistant[213]: AVF encoder error: fail to create accelerator instance

    If anyone can confirm these logs or behavior then maybe we can get something out of this instead of waiting here...

    MacBook Pro (15-inch Late 2011), OS X Mountain Lion (10.8.2)
  • shmootz5 Calculating status...

    Same problem here!

    https://discussions.apple.com/message/19727210#19727210

     

    I have a MacBook Late 2008 Aluminium... Very annoying!

  • lunatic77 Level 1 Level 1 (0 points)

    Like you all, upgrading to 10.8.2 messed up my clamshell mode too. I remembered I had done something to fix it in Lion (when it broke then). Turns out it works now as well, for me at least.

     

    From Terminal, do the following:

     

    sudo nvram boot-args="iog=0x0"

     

    Then reboot. Hope this helps others.

     

    Matt

  • Mykol74 Calculating status...

    Can anyone confirm the fix that lunatic77 provides works?

  • lunatic77 Level 1 Level 1 (0 points)

    Sorry for the false hope guys. After doing this I had rebooted (and closed the lid) and it booted up fine and stayed in clamshell mode. However when I later tried to close the lid (without rebooting) and awakened the monitor with the keyboard/mouse, the external display came on for a few seconds then the machine went back to sleep. It kept cycling awake and asleep after this. Bottom line is, I don't know if the nvram command made it possible to use clamshell mode upon boot or if it was already working that way with Mountain Lion/10.8.2.

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