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cateshima

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Q: working in windows and screen goes black

I switch to my Windows operating partition of my mac and while working in there all of a sudden the screen will go black. I can't do anything other than a hard restart. Any solutions?

iMac, Windows 7

Posted on Sep 13, 2015 12:17 PM

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Q: working in windows and screen goes black

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by Loner T,

Loner T Sep 13, 2015 1:55 PM in response to cateshima
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Sep 13, 2015 1:55 PM in response to cateshima

Can you connect an external monitor to Windows and check if the same thing happens on the external monitor?
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by cateshima,

cateshima Sep 13, 2015 2:28 PM in response to Loner T
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Sep 13, 2015 2:28 PM in response to Loner T

I connected it to an external monitor and the same thing will happen. No picture on the main screen or external monitor. Both go black.
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by Loner T,

Loner T Sep 13, 2015 3:59 PM in response to cateshima
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Sep 13, 2015 3:59 PM in response to cateshima

1. What is the year/model of the Mac?
2. Can you run the following two procedures and test?
Resetting the System Management Controller (SMC) on your Mac - Apple Support
How to Reset NVRAM on your Mac - Apple Support
3. If Step 2 does not work, can you run Apple Hardware Test - Using Apple Hardware Test - Apple Support ?
4. Does the screen (internal or external) work for a few minutes and stop working? Can you capture a screen shot of Device Manager -> Display Adapter and the driver version using Windows Snipping Tool and save it before it stops working?
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by cateshima,

cateshima Sep 30, 2015 5:41 PM in response to Loner T
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Sep 30, 2015 5:41 PM in response to Loner T

Hi Loaner T,

Sorry I didn't get back sooner. That J-O-B just keeps me busy. I have a iMac 24-inch 2008 model. I'll try and run those test. Maybe my computer is just too old and I've been pushing the limits on it. Will keep you posted.
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by cateshima,

cateshima Sep 30, 2015 5:43 PM in response to cateshima
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Sep 30, 2015 5:43 PM in response to cateshima

Did all of the above and still after working on my mac on the Windows side after 45 minutes the screen went black. System was still running, but no way to get the display to come back on so had to do a hard restart.

Any thoughts on this one?
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by Loner T,

Loner T Sep 30, 2015 6:01 PM in response to cateshima
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Sep 30, 2015 6:01 PM in response to cateshima

Does the same pattern occur when on the OS X side?
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by cateshima,

cateshima Sep 30, 2015 6:16 PM in response to Loner T
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Sep 30, 2015 6:16 PM in response to Loner T

No, it is only when I work on my Windows side. The Mac side is very stable and no issues.
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by Loner T,

Loner T Sep 30, 2015 6:40 PM in response to cateshima
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Sep 30, 2015 6:40 PM in response to cateshima

You seem to have thermal overheating of the GPU on the Windows side. Before the screen goes black, do you hear the fans come on? Does this happen around the same time (~45 minutes after booting into Windows) consistently? Is there enough air circulation where you Mac is? You can try to increase air circulation behind the Mac and test for any changes.
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by cateshima,

cateshima Sep 30, 2015 6:34 PM in response to Loner T
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Sep 30, 2015 6:34 PM in response to Loner T

Maybe that could be it, but I don't hear the fan kick on. I'll see if I can put something there to circulate the air and see if that helps. Thanks!
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HT201468: How to install Windows using Boot Camp

Q: working in windows and screen goes black

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