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lannister80
Apr 9, 2010, 12:22 PM
I have a new issue with my Mac Pro (3,1 - 2008), it just popped up (and I don't think it was caused by 10.6.3, I remember this working correctly after it was installed)

I have two monitors connected via DVI to a flashed XFX 4870. The 4870 has never given me any trouble.

In the Energy Saver settings, I usually set the machine to never sleep, and the displays to sleep after 5 minutes. This used to work great, never had any trouble with it, ever. Now, the displays don't go to sleep after 5 minutes, they just stay on with a screensaver.

I tired the following:

1) Clicked "restore defaults" button in Energy Saver control panel, then set my setting the way I usually do.

2) Set a hotcorner to put the displays to sleep. This worked once or twice, then the hotcorner stopped working.

3) Rebooted a bunch of times.

I have not yet reset PRAM or SMC because this is a monitor/display sleep issue, not a machine sleep issue (machine sleeps just fine).

I have a full SuperDuper backup of my 10.6.2 system and when I boot into that, display sleep works just fine. But I could *swear* that display sleep was working OK in 10.6.3 before this issue happened. I think...

Any ideas? Can I blow away some plist files to reset this?


Hellhammer
Apr 9, 2010, 12:23 PM
Repair permissions with Disk Utility
lannister80
Apr 9, 2010, 12:24 PM
Repair permissions with Disk Utility
Really? Alright, I'll give it a go. Any particular error/correction I should look for in the output?
Hellhammer
Apr 9, 2010, 12:27 PM
Really? Alright, I'll give it a go. Any particular error/correction I should look for in the output?

Just let it repair them, then reboot and see if the display works. Seen several cases where this has done the trick. No need to look for any special correction it does
lannister80
Apr 9, 2010, 04:40 PM
Just let it repair them, then reboot and see if the display works. Seen several cases where this has done the trick. No need to look for any special correction it does
It worked! I am shocked and amazed. Thanks!
Hellhammer
Apr 9, 2010, 04:42 PM
It worked! I am shocked and amazed. Thanks!

Great to hear that! Your welcome :) Keep that in mind if you face the same issue in future
dnlcorrea
Apr 10, 2010, 09:57 AM
That worked for me as well. Thank you.
lannister80
May 2, 2010, 10:18 AM
Well, it worked for about 1 or 2 reboots, and now they won't sleep again.

Repairing permissions sometimes helps, sometimes doesn't. Repairing permissions doesn't report anything being fixed, even when it does help.

Anyway know what the specific issue might be?
Hellhammer
May 2, 2010, 10:22 AM
Well, it worked for about 1 or 2 reboots, and now they won't sleep again.

Repairing permissions sometimes helps, sometimes doesn't. Repairing permissions doesn't report anything being fixed, even when it does help.

Anyway know what the specific issue might be?

Try reseting PRAM and SMC

Might be an issue in the display's drivers too