Graphics Card
XFX Double D Radeon 7950

AMD Catalyst Driver Version, and Driver History
12.10, upgraded a couple weeks ago from 12.4

Operating System
64-bit Windows 7

Issue Details
2 issues:

-issue 1:  when monitor goes to sleep, monitor doesn't turn off--backlight stays on.  only started happening since updating from catalyst 12.4 to 12.10.  again, the display turns off, but the backlight stays on with a cursor on the screen.

-issue 2:  random restarts.  no warning at all, just a system reboot.  happens randomly when surfing the web, playing a game, working in MS word, etc.  does not appear to be caused by anything.  has happened ONLY since installing the card (only system change that was made).  I haven't tried changing out the power supply yet, but I doubt that's the issue as it started once I installed the new 7950.

Motherboard or System Make & Model
-Biostar TP55

Power Supply
PC Power & Cooling Silencer MKII 750W

Display Device(s) and Connection(s) Used
-single Samsung P2770 27" TN connected via DVI

Applications and Games
-both issues appaer to be independent of application

CPU Details
- Intel Core i7 860 stock

Motherboard BIOS Version
-American Megatrends v2.63

System Memory Type & Amount
-8GB (2x2gb kingston hyperx, 2x2gb patriot)

this setup was working with no issues pre-7950

Additional Hardware
Samsung 830 256gb SSD, onboard sound

Additional Details
-ran memtest and prime95

Edited: 12/13/2012 at 12:36 AM by quacktastic

Latest Intel chipset drivers?

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Crosshair IV Formula, Phenom II x4 965 w/ Corsair H60, 8 GiB OCZ Platinum DDR3 1600, XFX HD 7970 Ghz, 512GB Vertex 4, 256GB Vector, 240GB Agility 3, Creative X-Fi Titanium w/ Creative Gigaworks S750, SeaSonic X750, HP ZR2440w, Win 7 Ultimate x64

I just updated the chipset drivers.  I think they were up to date (as the last release for the mobo was apparently 2010), but I wasn't sure so I updated them anyway.  I'll post again if I'm still having problems.  Thank you for the suggestion.

I'm still having issues with the monitor not turning off, although I haven't had a random crash yet. *crosses fingers*

Why did you update your drivers? Were you having problems before you up dated the drivers? Or the updated drivers were there and updated for the hell of it. Like I tell people all the time don't fix what isn't broke. Yes if you are having problems than try the newer driver. If it didn't work go back to the driver that was working.

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GIGABYTE-GA-GA-X79-UD3 i7-3820 3.80GHz, G.Skill 16gb DDR3 2133 Quad, Ati HD 7950 3GB, In Win Glacier 900W, COOLER MASTER HAF 932 , 256gb SSD, Win7 Ult-64bit, 32" LED TV
GIGABYTE-GA-990FXA-UD5R, FX-8150 3.60GHz AM3+ 8-CORE, Mushkin 8gb DDR3 1600, EVGA GTX 550 Ti 1GB, Ultra 750W PSU, IN WIN BUC 101 Mid Tower, Win 7 Pro 64bit - Play around with computer

I was having issues with random restarts prior to the driver update.  I was trying to fix the random restart issue.  As the new video card was the only thing that changed, I figured updating the video drivers was a reasonable course of action.  

And I just had my first random restart since the intel chipset driver update.  

Have you tried to put back in the old card and see if that takes care of the problem. There could be something wrong with the new card.

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GIGABYTE-GA-GA-X79-UD3 i7-3820 3.80GHz, G.Skill 16gb DDR3 2133 Quad, Ati HD 7950 3GB, In Win Glacier 900W, COOLER MASTER HAF 932 , 256gb SSD, Win7 Ult-64bit, 32" LED TV
GIGABYTE-GA-990FXA-UD5R, FX-8150 3.60GHz AM3+ 8-CORE, Mushkin 8gb DDR3 1600, EVGA GTX 550 Ti 1GB, Ultra 750W PSU, IN WIN BUC 101 Mid Tower, Win 7 Pro 64bit - Play around with computer

One other thing here is that board doesn't support 3.0 cards. Yes the card should be backward compatible and should work. I myself won't put a 3.0 card into a 2.0 board.

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GIGABYTE-GA-GA-X79-UD3 i7-3820 3.80GHz, G.Skill 16gb DDR3 2133 Quad, Ati HD 7950 3GB, In Win Glacier 900W, COOLER MASTER HAF 932 , 256gb SSD, Win7 Ult-64bit, 32" LED TV
GIGABYTE-GA-990FXA-UD5R, FX-8150 3.60GHz AM3+ 8-CORE, Mushkin 8gb DDR3 1600, EVGA GTX 550 Ti 1GB, Ultra 750W PSU, IN WIN BUC 101 Mid Tower, Win 7 Pro 64bit - Play around with computer

So I have gotten windbg and read the memory dumps from the crashes, and they all indicate dxgmms1.sys as the likely culprit.  The default_bucket_ID is "WIN7_Driver_Fault" so I'm assuming that it's driver related, although I don't have much experience with memory dumps.  A quick google search of dxgmms1.sys does seem to indicate driver issues related to directx, but I'm out of my element.  Can anybody shed some light on this?  I'm at my wits end here. 

Also, to respond to dmdilks previous response:  the old card died, so trying it isn't an option.

Did you purge all the old drivers with a program like driver sweeper?You might wanna try reinstalling directx again also.This new drivers for 7 series cards seem to have all kinds od issues.You should reinstall 12.4 until they fix problems.

I have tried driver sweeper, but I updated to 12.10 in an attempt to fix the problems I was seeing with 12.4 (the restarts were happening then too), so reinstalling 12.4 won't help.