xjpsmithx
Level 1 (0 points)

Q: A1038 Cinema Display doesnt wake after sleep

I picked up an Apple cinema display A1038 for real cheap with hopes to make it a second monitor for my 2011 mac mini. I hooked it up to my G4 powermac to test, until I get the correct adapters for my mini. It worked when powered on and I ran a movie to see if it would stay on and it did. After the movie was over the computer went to sleep and now it will not wake up, just black screen with the power light on the display blinking occasionally. If I hard reboot the computer the apple loading screen appears and than it goes black. I tried swapping the video card with another one I had laying around but same symptoms. If I unplug the display and unplug the computer for a few mins, everything will start and run fine until the computer sleeps again. I also have a G5 powermac but I haven't tried the display on it yet. Any suggestions?!

PowerMac, Mac OS X (10.5.8)

Posted on Sep 3, 2012 5:43 PM

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xjpsmithx

Q: A1038 Cinema Display doesnt wake after sleep

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  • by Malcolm J. Rayfield,

    Malcolm J. Rayfield Malcolm J. Rayfield Sep 3, 2012 7:39 PM in response to xjpsmithx
    Level 5 (7,928 points)
    Sep 3, 2012 7:39 PM in response to xjpsmithx

    The USB circuitry in the display may be failing.  This can interfere with computer sleep functions.   It that's the problem you may be able to use the display successfully when using a DVI to ADC adapter by not connecting the adapter's USB cable to the computer.  You won't be able to use the display's USB ports or control its brightness from the computer.  I have been using my 22" ADC display this way for five years since its USB started causing computer sleep problems.

     

    Be sure to get the Apple version of the DVI to ADC adapter.  Other brands may not work in conjunction with a Mini DisplayPort adapter.

  • by xjpsmithx,

    xjpsmithx xjpsmithx Sep 3, 2012 8:04 PM in response to Malcolm J. Rayfield
    Level 1 (0 points)
    Sep 3, 2012 8:04 PM in response to Malcolm J. Rayfield

    The monitor does not have a USB cable attached to it. It has a single cable out of the back of the monitor, it's a agc cable. Am I missing something. This is my first dealings with an apple display so I wouldn't know if it's missing parts.

  • by Malcolm J. Rayfield,

    Malcolm J. Rayfield Malcolm J. Rayfield Sep 3, 2012 8:08 PM in response to xjpsmithx
    Level 5 (7,928 points)
    Sep 3, 2012 8:08 PM in response to xjpsmithx

    The display uses ADC (Apple Display Connector) which includes DVI, USB, and power. A DVI to ADC adapter separates those into individual plugs.

  • by xjpsmithx,

    xjpsmithx xjpsmithx Sep 3, 2012 8:35 PM in response to Malcolm J. Rayfield
    Level 1 (0 points)
    Sep 3, 2012 8:35 PM in response to Malcolm J. Rayfield

    Ahh. I see! I found the adapter you are talking about, it's Apple M8661LL/B DVI to ADC adapter. I found it for around $100. Ouch! I'll give it a shot. Thanks.