ATI Radeon + HDMI + Win7 = BSOD

Confounded by this issue on two builds...Intel and AMD based systems. Took a while hunting down what was causing the BSODs. Ran a myriad of memory and video tests with no issues till I started to notice a trend.

The BSOD usually happens during communication with the HDMI port. It can happen when coming out of screen blank mode (screensaver) or when switching an input on the TV...say from TV to HDMI (connected to the PC.)

So far the issue has presented itself with both the 10.0 Catalyst drivers and beta version 11b on ATI's developer site.

Anyone else seeing this issue and find a work around or stable driver?

Hardware:

Gigabyte motherboard (AMD and Intel)
Hauppauge 2250 tuner
ATI 4650 video card.

Software:

Windows 7 Mediacenter
Catalyst 10 and 11b.

By the way, I'm also getting considerably worse Desktop Aero Performance from the Intel system....3.9 vs. 5.5.

Thanks for the replies. The systems are running the boxed release version of Win7 Home Premium. Both were fresh installs. I can't recall whether there might have been an update before the first BSOD, but MS has pushed a dozen updates to the machine.

Software installed is:

1. Hauppauge Win7 drivers
2. ATI Catalyst and drivers (catalyst install necessary to turn off overscan.)
3. Sissoft Sandra for hardware diagnosis
4. AVG Antivirus
5. Google Chrome and Picasa
6. Realtek latest sound card drivers
7. Updated ethernet drivers pushed from MS

That is all I can think of now.

Intel machine was initially hooked to TV with VGA cable and didn't experience any BSOD until moving to HDMI hookup...not sure if that was a coincidence timed to MS update. BSOD's are intermittent, not on all HDMI handshakes...but I will try putting it back to VGA to see if that fixes problem...also might try DVI to HDMI since I am pulling the sound out by optical toslink anyway.

Will also try 9.8 drivers from ATI...thanks.

Did that on the Intel system...plus updated the chipset drivers after calling Gigabyte. This was actually to try and fix performance issue with the video card. The ATI 4650 only scores a 3.5 Performance for Windows Aero, on the Intel box, while scoring a 5.1 on the AMD machine. Gigabyte tech told me to update bios and use Intel Vista chipset drivers (vs. chipset drivers installed with Win7.) BSOD's the same before and after those recommended updates and performance is just as bad. Interestingly, it is only this one score that is poor, the 3D score is on par with other machine.

The 4650 has HDMI out so I haven't had to resort to a DVI adapter (but might try one to see if it works better.)

Since it seems to happen during HDMI handshakes I'm thinking these solutions posted in this forum (that avoid the handshake) might work.

http://www.avsforum.com/avs-vb/showthread.php?t=1194986

http://www.avsforum.com/avs-vb/showt...1#post17448181