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KevCheng Level 1 Level 1 (0 points)

I just got my 2012 Mac Mini yesterday (mid range model) and have already noticed three instances where the video would blink out for about a half second, and then come right back. This happend twice already when I'm connected to a Apple 23 inch LCD monitor via the included HDMI-DVI adapter and once when I'm connected via HDMI to my Samsung LCD TV. Anyone else noticing this happening on their Mac Minis? Thanks.


Mac mini, OS X Mountain Lion (10.8.2)
  • 1. Re: Mac Mini 2012 video blinking out
    BDAqua Level 10 Level 10 (116,465 points)

    Open Console in Utilities & see if there are any clues or repeating messages when this happens.

  • 2. Re: Mac Mini 2012 video blinking out
    Brunoximus Level 1 Level 1 (0 points)

    Same here. Here's my post / description:

    https://discussions.apple.com/message/20153872#20153872

  • 3. Re: Mac Mini 2012 video blinking out
    V M1 Level 1 Level 1 (5 points)

    Yep, this has happened to me a few times as well. It just happened 5 mins ago and for a second I saw a gray screen with static just like you'd see on TV when you disconnect the antenna cable. I have it connected to a Dell SP2309W monitor. Likely a driver issue, hope it is fixed soon, it is pretty annoying.

  • 4. Re: Mac Mini 2012 video blinking out
    V M1 Level 1 Level 1 (5 points)

    So I looked in the Console for around the time when the video blink happened and here is what I have:

     

    2012-10-27 7:58:26.425 PM WindowServer[87]: Received display connect changed for display 0x3f003c

    2012-10-27 7:58:26.426 PM WindowServer[87]: Received display connect changed for display 0x3f003d

    2012-10-27 7:58:26.426 PM WindowServer[87]: Received display connect changed for display 0x2b343212

    2012-10-27 7:58:26.429 PM WindowServer[87]: No display devices are on-line. Switching to virtual display mode

    2012-10-27 7:58:27.507 PM WindowServer[87]: Received display connect changed for display 0x3f003c

    2012-10-27 7:58:27.507 PM WindowServer[87]: Received display connect changed for display 0x3f003d

    2012-10-27 7:58:27.507 PM WindowServer[87]: Received display connect changed for display 0x3f003e

    2012-10-27 7:58:27.520 PM WindowServer[87]: New display device coming on-line. Switching from virtual display mode

    2012-10-27 7:58:27.524 PM WindowServer[87]: Created shield window 0x110 for display 0x2b343212

    2012-10-27 7:58:27.524 PM WindowServer[87]: handle_will_sleep_auth_and_shield_windows: no action for lock state 1

    2012-10-27 7:58:27.799 PM WindowServer[87]: MPServiceForDisplayDevice: Invalid device alias (0)

    2012-10-27 7:58:27.800 PM WindowServer[87]: 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

    2012-10-27 7:58:27.800 PM WindowServer[87]: 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

    2012-10-27 7:58:27.800 PM WindowServer[87]: 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"}

    2012-10-27 7:58:27.800 PM WindowServer[87]: GLCompositor: GL renderer id 0x01024400, GL mask 0x00000007, accelerator 0x00003243, unit 0, caps QEX|QGL|MIPMAP, vram 580 MB

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

    2012-10-27 7:58:28.110 PM WindowServer[87]: Created shield window 0x111 for display 0x003f003c

    2012-10-27 7:58:28.111 PM WindowServer[87]: Created shield window 0x112 for display 0x003f003d

    2012-10-27 7:58:28.125 PM WindowServer[87]: Created shield window 0x113 for display 0x2b343212

    2012-10-27 7:58:28.126 PM WindowServer[87]: Display 0x2b343212: MappedDisplay Unit 2: Startup Mode 2048 x 1152, CGSThirtytwoBitColor, Resolution 1, IOMode 0x80001000, IODepth 0x0, IOReturn 0x0

    2012-10-27 7:58:28.126 PM WindowServer[87]: Display added

    2012-10-27 7:58:28.126 PM WindowServer[87]: Display removed

    2012-10-27 7:58:28.128 PM WindowServer[87]: 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"}

    2012-10-27 7:58:28.128 PM WindowServer[87]: GLCompositor: GL renderer id 0x01024400, GL mask 0x00000007, accelerator 0x00003243, unit 0, caps QEX|QGL|MIPMAP, vram 580 MB

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

    2012-10-27 7:58:28.128 PM WindowServer[87]: 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

    2012-10-27 7:58:28.128 PM WindowServer[87]: 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

    2012-10-27 7:58:28.150 PM WindowServer[87]: MPAccessSurfaceForDisplayDevice: Set up page flip mode on display 0x2b343212 device: 0x1084c2320  isBackBuffered: 1 numComp: 3 numDisp: 3

    2012-10-27 7:58:29.532 PM WindowServer[87]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'.

    2012-10-27 7:58:29.642 PM WindowServer[87]: Display 0x2b343212: MappedDisplay Unit 2; ColorProfile { 3, "HD 709-A Calibrated"}; TransferFormula (1.725494, 1.725494, 1.725494)

    2012-10-27 7:58:29.656 PM WindowServer[87]: Display 0x2b343212: MappedDisplay Unit 2; ColorProfile { 3, "HD 709-A Calibrated"}; TransferFormula (1.725494, 1.725494, 1.725494)

    2012-10-27 7:58:30.126 PM WindowServer[87]: **DMPROXY** (2) Found `/System/Library/CoreServices/DMProxy'.

    2012-10-27 7:58:30.151 PM WindowServer[87]: Display 0x2b343212: MappedDisplay Unit 2; ColorProfile { 3, "HD 709-A Calibrated"}; TransferFormula (1.725494, 1.725494, 1.725494)

    2012-10-27 7:58:30.164 PM WindowServer[87]: Display 0x2b343212: MappedDisplay Unit 2; ColorProfile { 3, "HD 709-A Calibrated"}; TransferFormula (1.725494, 1.725494, 1.725494)

  • 5. Re: Mac Mini 2012 video blinking out
    BDAqua Level 10 Level 10 (116,465 points)

    OK, nice work... now to digest/mull why it disconnects!?

  • 6. Re: Mac Mini 2012 video blinking out
    Javier Chorrillos Level 1 Level 1 (5 points)

    I get the same exact problem on my new Mac Mini late 2012 i5. Mine is hooked up to a 60'' Sony Bravia TV through HDMI. Hopefully an update will be able to fix it.

     

    Also, my external hard drive isn't being read every time I restart my Mac Mini, I have to unplug the USB 3.0 drive and then replug it back in...

  • 7. Re: Mac Mini 2012 video blinking out
    V M1 Level 1 Level 1 (5 points)

    Hopefully because depending on what you are doing at the particular time this happens, it can really mess you up.

  • 8. Re: Mac Mini 2012 video blinking out
    R0mulox Level 1 Level 1 (0 points)

    I'm cross posting my post from https://discussions.apple.com/message/20153872#20153872 just to help others find this issue through alternate search words

     

    "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)."

  • 9. Re: Mac Mini 2012 video blinking out
    V M1 Level 1 Level 1 (5 points)

    Unfortunately Apple does not monitor these forums so the most effective way would be to send in a complaint. I put mine in yesterday complete with the Console log at the time it happened.

  • 10. Re: Mac Mini 2012 video blinking out
    sdpopa Level 1 Level 1 (0 points)

    I have the same issue with mine (2.6 GHz Intel Core i7, 256 SSD, 16 GB RAM) and a 40" Sony TV.

  • 11. Re: Mac Mini 2012 video blinking out
    BDAqua Level 10 Level 10 (116,465 points)

    How frequent is the occurrence of this?

  • 12. Re: Mac Mini 2012 video blinking out
    KevCheng Level 1 Level 1 (0 points)

    About once or twice a day, and I'm on the computer maybe 2-3 hours a day, which works out to be about once every couple hours.

  • 13. Re: Mac Mini 2012 video blinking out
    BDAqua Level 10 Level 10 (116,465 points)

    Thanks.

  • 14. Re: Mac Mini 2012 video blinking out
    ejoy_uk Level 1 Level 1 (0 points)

    My brand new i5 mac mini connected to an Dell U2410 via hdmi->dvi adapter have exactly the same problem. The screen goes blank 2-3 times a day randomly.

     

    Any tips on how to fix it?

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