Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Short interference (snow like) Mac Mini i7 (Late 2012)

My brand new Mac Mini has a strange error which i have never seen on any computer. At rare intervals my monitor shows a short (1 sec) interference. During this brief moment my apple cinema display shows 'multi colored snow'. It looks like the 'snow-interference' on old school tv's, but these speckles are in black, white AND red, green & blue.


I've got a cinema display connected through the provided Apple HDMI-DVI converter. The display itself never showed any interference on my old mac mini.


Does anyone experiences the same problem?

or.. does anyone has a clue what's happening here?


Cheers,

Bruno

Mac mini, OS X Mountain Lion (10.8.2), Mac Mini 2,3 Ghz I7 (Late 2012)

Posted on Oct 27, 2012 4:36 AM

Reply
78 replies

Oct 28, 2012 10:28 AM in response to Brunoximus

I just had this happen again which lasted about 7 seconds and I got the following output from Console:


2012-10-28 1:24:56.528 PM WindowServer[89]: Received display connect changed for display 0x3f003c

2012-10-28 1:24:56.529 PM WindowServer[89]: Received display connect changed for display 0x3f003d

2012-10-28 1:24:56.529 PM WindowServer[89]: Received display connect changed for display 0x2b343212

2012-10-28 1:24:56.532 PM WindowServer[89]: No display devices are on-line. Switching to virtual display mode

2012-10-28 1:24:57.577 PM WindowServer[89]: Received display connect changed for display 0x3f003c

2012-10-28 1:24:57.577 PM WindowServer[89]: Received display connect changed for display 0x3f003d

2012-10-28 1:24:57.577 PM WindowServer[89]: Received display connect changed for display 0x3f003e

2012-10-28 1:24:57.586 PM WindowServer[89]: New display device coming on-line. Switching from virtual display mode

2012-10-28 1:24:57.605 PM WindowServer[89]: Created shield window 0x40 for display 0x2b343212

2012-10-28 1:24:57.605 PM WindowServer[89]: handle_will_sleep_auth_and_shield_windows: no action for lock state 1

2012-10-28 1:24:57.960 PM WindowServer[89]: MPServiceForDisplayDevice: Invalid device alias (0)

2012-10-28 1:24:57.960 PM WindowServer[89]: Display 0x003f003c: GL mask 0x1; bounds (3072, 0)[1 x 1], 1 modes available

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

UUID 0xffffffffffffffffffffffff003f003c

2012-10-28 1:24:57.960 PM WindowServer[89]: Display 0x003f003d: GL mask 0x2; bounds (3073, 0)[1 x 1], 1 modes available

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

UUID 0xffffffffffffffffffffffff003f003d

2012-10-28 1:24:57.960 PM WindowServer[89]: Display 0x2b343212: GL mask 0x4; bounds (0, 0)[2048 x 1152], 18 modes available

Main, Active, on-line, enabled, boot, OpenGL-accel, Vendor 10ac, Model d01d, S/N 304e3553, Unit 2, Rotation 0

UUID 0x000010ac0000d01d304e355300000000, ColorProfile { 3, "HD 709-A Calibrated"}

2012-10-28 1:24:57.960 PM WindowServer[89]: GLCompositor: GL renderer id 0x01024400, GL mask 0x00000007, accelerator 0x00003043, unit 0, caps QEX|QGL|MIPMAP, vram 580 MB

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

2012-10-28 1:24:58.270 PM WindowServer[89]: Created shield window 0x41 for display 0x003f003c

2012-10-28 1:24:58.271 PM WindowServer[89]: Created shield window 0x42 for display 0x003f003d

2012-10-28 1:24:58.278 PM WindowServer[89]: Created shield window 0x43 for display 0x2b343212

2012-10-28 1:24:58.279 PM WindowServer[89]: Display 0x2b343212: MappedDisplay Unit 2: Startup Mode 2048 x 1152, CGSThirtytwoBitColor, Resolution 1, IOMode 0x80001000, IODepth 0x0, IOReturn 0x0

2012-10-28 1:24:58.279 PM WindowServer[89]: Display added

2012-10-28 1:24:58.279 PM WindowServer[89]: Display removed

2012-10-28 1:24:58.281 PM WindowServer[89]: Display 0x2b343212: GL mask 0x4; bounds (0, 0)[2048 x 1152], 18 modes available

Main, Active, on-line, enabled, boot, OpenGL-accel, Vendor 10ac, Model d01d, S/N 304e3553, Unit 2, Rotation 0

UUID 0x000010ac0000d01d304e355300000000, ColorProfile { 3, "HD 709-A Calibrated"}

2012-10-28 1:24:58.281 PM WindowServer[89]: GLCompositor: GL renderer id 0x01024400, GL mask 0x00000007, accelerator 0x00003043, unit 0, caps QEX|QGL|MIPMAP, vram 580 MB

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

2012-10-28 1:24:58.281 PM WindowServer[89]: Display 0x003f003c: GL mask 0x1; bounds (3072, 0)[1 x 1], 1 modes available

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

UUID 0xffffffffffffffffffffffff003f003c

2012-10-28 1:24:58.281 PM WindowServer[89]: Display 0x003f003d: GL mask 0x2; bounds (3073, 0)[1 x 1], 1 modes available

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

UUID 0xffffffffffffffffffffffff003f003d

2012-10-28 1:24:58.300 PM WindowServer[89]: MPAccessSurfaceForDisplayDevice: Set up page flip mode on display 0x2b343212 device: 0x100cee320 isBackBuffered: 1 numComp: 3 numDisp: 3

2012-10-28 1:24:59.606 PM WindowServer[89]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'.

2012-10-28 1:24:59.647 PM WindowServer[89]: Display 0x2b343212: MappedDisplay Unit 2; ColorProfile { 3, "HD 709-A Calibrated"}; TransferFormula (1.725494, 1.725494, 1.725494)

2012-10-28 1:24:59.674 PM WindowServer[89]: Display 0x2b343212: MappedDisplay Unit 2; ColorProfile { 3, "HD 709-A Calibrated"}; TransferFormula (1.725494, 1.725494, 1.725494)

2012-10-28 1:25:00.279 PM WindowServer[89]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'.

2012-10-28 1:25:00.319 PM WindowServer[89]: Display 0x2b343212: MappedDisplay Unit 2; ColorProfile { 3, "HD 709-A Calibrated"}; TransferFormula (1.725494, 1.725494, 1.725494)

2012-10-28 1:25:00.347 PM WindowServer[89]: Display 0x2b343212: MappedDisplay Unit 2; ColorProfile { 3, "HD 709-A Calibrated"}; TransferFormula (1.725494, 1.725494, 1.725494)

2012-10-28 1:25:01.295 PM WindowServer[89]: Received display connect changed for display 0x3f003c

2012-10-28 1:25:01.295 PM WindowServer[89]: Received display connect changed for display 0x3f003d

2012-10-28 1:25:01.295 PM WindowServer[89]: Received display connect changed for display 0x2b343212

2012-10-28 1:25:01.298 PM WindowServer[89]: No display devices are on-line. Switching to virtual display mode

2012-10-28 1:25:02.371 PM WindowServer[89]: Received display connect changed for display 0x3f003c

2012-10-28 1:25:02.372 PM WindowServer[89]: Received display connect changed for display 0x3f003d

2012-10-28 1:25:02.372 PM WindowServer[89]: Received display connect changed for display 0x3f003e

2012-10-28 1:25:02.381 PM WindowServer[89]: New display device coming on-line. Switching from virtual display mode

2012-10-28 1:25:02.386 PM WindowServer[89]: Created shield window 0x44 for display 0x2b343212

2012-10-28 1:25:02.386 PM WindowServer[89]: handle_will_sleep_auth_and_shield_windows: no action for lock state 1

2012-10-28 1:25:02.946 PM WindowServer[89]: MPServiceForDisplayDevice: Invalid device alias (0)

2012-10-28 1:25:02.946 PM WindowServer[89]: Display 0x003f003c: GL mask 0x1; bounds (3072, 0)[1 x 1], 1 modes available

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

UUID 0xffffffffffffffffffffffff003f003c

2012-10-28 1:25:02.946 PM WindowServer[89]: Display 0x003f003d: GL mask 0x2; bounds (3073, 0)[1 x 1], 1 modes available

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

UUID 0xffffffffffffffffffffffff003f003d

2012-10-28 1:25:02.946 PM WindowServer[89]: Display 0x2b343212: GL mask 0x4; bounds (0, 0)[2048 x 1152], 18 modes available

Main, Active, on-line, enabled, boot, OpenGL-accel, Vendor 10ac, Model d01d, S/N 304e3553, Unit 2, Rotation 0

UUID 0x000010ac0000d01d304e355300000000, ColorProfile { 3, "HD 709-A Calibrated"}

2012-10-28 1:25:02.947 PM WindowServer[89]: GLCompositor: GL renderer id 0x01024400, GL mask 0x00000007, accelerator 0x00003043, unit 0, caps QEX|QGL|MIPMAP, vram 580 MB

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

2012-10-28 1:25:03.258 PM WindowServer[89]: Created shield window 0x45 for display 0x003f003c

2012-10-28 1:25:03.258 PM WindowServer[89]: Created shield window 0x46 for display 0x003f003d

2012-10-28 1:25:03.272 PM WindowServer[89]: Created shield window 0x47 for display 0x2b343212

2012-10-28 1:25:03.274 PM WindowServer[89]: Display 0x2b343212: MappedDisplay Unit 2: Startup Mode 2048 x 1152, CGSThirtytwoBitColor, Resolution 1, IOMode 0x80001000, IODepth 0x0, IOReturn 0x0

2012-10-28 1:25:03.274 PM WindowServer[89]: Display added

2012-10-28 1:25:03.274 PM WindowServer[89]: Display removed

2012-10-28 1:25:03.276 PM WindowServer[89]: Display 0x2b343212: GL mask 0x4; bounds (0, 0)[2048 x 1152], 18 modes available

Main, Active, on-line, enabled, boot, OpenGL-accel, Vendor 10ac, Model d01d, S/N 304e3553, Unit 2, Rotation 0

UUID 0x000010ac0000d01d304e355300000000, ColorProfile { 3, "HD 709-A Calibrated"}

2012-10-28 1:25:03.276 PM WindowServer[89]: GLCompositor: GL renderer id 0x01024400, GL mask 0x00000007, accelerator 0x00003043, unit 0, caps QEX|QGL|MIPMAP, vram 580 MB

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

2012-10-28 1:25:03.276 PM WindowServer[89]: Display 0x003f003c: GL mask 0x1; bounds (3072, 0)[1 x 1], 1 modes available

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

UUID 0xffffffffffffffffffffffff003f003c

2012-10-28 1:25:03.276 PM WindowServer[89]: Display 0x003f003d: GL mask 0x2; bounds (3073, 0)[1 x 1], 1 modes available

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

UUID 0xffffffffffffffffffffffff003f003d

2012-10-28 1:25:03.293 PM WindowServer[89]: MPAccessSurfaceForDisplayDevice: Set up page flip mode on display 0x2b343212 device: 0x100cee320 isBackBuffered: 1 numComp: 3 numDisp: 3

2012-10-28 1:25:04.394 PM WindowServer[89]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'.

2012-10-28 1:25:04.434 PM WindowServer[89]: Display 0x2b343212: MappedDisplay Unit 2; ColorProfile { 3, "HD 709-A Calibrated"}; TransferFormula (1.725494, 1.725494, 1.725494)

2012-10-28 1:25:04.462 PM WindowServer[89]: Display 0x2b343212: MappedDisplay Unit 2; ColorProfile { 3, "HD 709-A Calibrated"}; TransferFormula (1.725494, 1.725494, 1.725494)

2012-10-28 1:25:05.274 PM WindowServer[89]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'.

2012-10-28 1:25:05.314 PM WindowServer[89]: Display 0x2b343212: MappedDisplay Unit 2; ColorProfile { 3, "HD 709-A Calibrated"}; TransferFormula (1.725494, 1.725494, 1.725494)

2012-10-28 1:25:05.342 PM WindowServer[89]: Display 0x2b343212: MappedDisplay Unit 2; ColorProfile { 3, "HD 709-A Calibrated"}; TransferFormula (1.725494, 1.725494, 1.725494)

2012-10-28 1:25:07.598 PM WindowServer[89]: Received display connect changed for display 0x3f003c

2012-10-28 1:25:07.598 PM WindowServer[89]: Received display connect changed for display 0x3f003d

2012-10-28 1:25:07.598 PM WindowServer[89]: Received display connect changed for display 0x2b343212

2012-10-28 1:25:07.601 PM WindowServer[89]: No display devices are on-line. Switching to virtual display mode

2012-10-28 1:25:08.683 PM WindowServer[89]: Received display connect changed for display 0x3f003c

2012-10-28 1:25:08.683 PM WindowServer[89]: Received display connect changed for display 0x3f003d

2012-10-28 1:25:08.683 PM WindowServer[89]: Received display connect changed for display 0x3f003e

2012-10-28 1:25:08.707 PM WindowServer[89]: New display device coming on-line. Switching from virtual display mode

2012-10-28 1:25:08.711 PM WindowServer[89]: Created shield window 0x48 for display 0x2b343212

2012-10-28 1:25:08.711 PM WindowServer[89]: handle_will_sleep_auth_and_shield_windows: no action for lock state 1

2012-10-28 1:25:08.988 PM WindowServer[89]: MPServiceForDisplayDevice: Invalid device alias (0)

2012-10-28 1:25:08.988 PM WindowServer[89]: Display 0x003f003c: GL mask 0x1; bounds (3072, 0)[1 x 1], 1 modes available

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

UUID 0xffffffffffffffffffffffff003f003c

2012-10-28 1:25:08.988 PM WindowServer[89]: Display 0x003f003d: GL mask 0x2; bounds (3073, 0)[1 x 1], 1 modes available

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

UUID 0xffffffffffffffffffffffff003f003d

2012-10-28 1:25:08.988 PM WindowServer[89]: Display 0x2b343212: GL mask 0x4; bounds (0, 0)[2048 x 1152], 18 modes available

Main, Active, on-line, enabled, boot, OpenGL-accel, Vendor 10ac, Model d01d, S/N 304e3553, Unit 2, Rotation 0

UUID 0x000010ac0000d01d304e355300000000, ColorProfile { 3, "HD 709-A Calibrated"}

2012-10-28 1:25:08.988 PM WindowServer[89]: GLCompositor: GL renderer id 0x01024400, GL mask 0x00000007, accelerator 0x00003043, unit 0, caps QEX|QGL|MIPMAP, vram 580 MB

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

2012-10-28 1:25:09.299 PM WindowServer[89]: Created shield window 0x49 for display 0x003f003c

2012-10-28 1:25:09.299 PM WindowServer[89]: Created shield window 0x4a for display 0x003f003d

2012-10-28 1:25:09.313 PM WindowServer[89]: Created shield window 0x4b for display 0x2b343212

2012-10-28 1:25:09.321 PM WindowServer[89]: Display 0x2b343212: MappedDisplay Unit 2: Startup Mode 2048 x 1152, CGSThirtytwoBitColor, Resolution 1, IOMode 0x80001000, IODepth 0x0, IOReturn 0x0

2012-10-28 1:25:09.321 PM WindowServer[89]: Display added

2012-10-28 1:25:09.321 PM WindowServer[89]: Display removed

2012-10-28 1:25:09.340 PM WindowServer[89]: Display 0x2b343212: GL mask 0x4; bounds (0, 0)[2048 x 1152], 18 modes available

Main, Active, on-line, enabled, boot, OpenGL-accel, Vendor 10ac, Model d01d, S/N 304e3553, Unit 2, Rotation 0

UUID 0x000010ac0000d01d304e355300000000, ColorProfile { 3, "HD 709-A Calibrated"}

2012-10-28 1:25:09.340 PM WindowServer[89]: GLCompositor: GL renderer id 0x01024400, GL mask 0x00000007, accelerator 0x00003043, unit 0, caps QEX|QGL|MIPMAP, vram 580 MB

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

2012-10-28 1:25:09.340 PM WindowServer[89]: Display 0x003f003c: GL mask 0x1; bounds (3072, 0)[1 x 1], 1 modes available

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

UUID 0xffffffffffffffffffffffff003f003c

2012-10-28 1:25:09.340 PM WindowServer[89]: Display 0x003f003d: GL mask 0x2; bounds (3073, 0)[1 x 1], 1 modes available

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

UUID 0xffffffffffffffffffffffff003f003d

2012-10-28 1:25:09.352 PM WindowServer[89]: MPAccessSurfaceForDisplayDevice: Set up page flip mode on display 0x2b343212 device: 0x100cee320 isBackBuffered: 1 numComp: 3 numDisp: 3

2012-10-28 1:25:10.713 PM WindowServer[89]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'.

2012-10-28 1:25:10.753 PM WindowServer[89]: Display 0x2b343212: MappedDisplay Unit 2; ColorProfile { 3, "HD 709-A Calibrated"}; TransferFormula (1.725494, 1.725494, 1.725494)

2012-10-28 1:25:10.780 PM WindowServer[89]: Display 0x2b343212: MappedDisplay Unit 2; ColorProfile { 3, "HD 709-A Calibrated"}; TransferFormula (1.725494, 1.725494, 1.725494)

2012-10-28 1:25:11.321 PM WindowServer[89]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'.

2012-10-28 1:25:11.361 PM WindowServer[89]: Display 0x2b343212: MappedDisplay Unit 2; ColorProfile { 3, "HD 709-A Calibrated"}; TransferFormula (1.725494, 1.725494, 1.725494)

2012-10-28 1:25:11.389 PM WindowServer[89]: Display 0x2b343212: MappedDisplay Unit 2; ColorProfile { 3, "HD 709-A Calibrated"}; TransferFormula (1.725494, 1.725494, 1.725494)

Oct 30, 2012 7:52 AM in response to Brunoximus

Thank goodness I'm not the only one! I'm just posting a "me too" to have this post gain some visibility. I have the same TV as Javier, except I go through a yamaha receiver. A little sad because this is my first mac mini ever, and I want to use it as a plex server!!! What a sinking feeling you get when this happens. It's not that bad though (yet).

Oct 31, 2012 4:22 PM in response to Brunoximus

On average, to me, it happens around 3 times in a span of about 3 hours. I have also noticed that the lengths of the video blackouts vary from about 1 second to about 7 seconds. Sometimes it is a 1 second video blip with no "snow-like interference" other times I get a blackout for about 3 seconds, then snow for 1 second and black for another 3 seconds. I am going to do my part in having this issue resolved for everybody. I also received a call from an Apple engineer.

Nov 3, 2012 10:25 AM in response to Brunoximus

Mine just did it today! I received it yesterday and transfered all my files and apps across and there was no problems. Then today I get the interference which I could only get out of by reselecting the input to the monitor, my Eizo has 2 x DVI and a Display Port, cycling through these when I got back to the correct DVI input it was OK.

This only happened on the monitor connected to the HDMI output, I have a second monitor connected by the Mini DisplayPort to DVI and that remained OK.

Short interference (snow like) Mac Mini i7 (Late 2012)

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple ID.