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27. Re: NVIDIA Investigating TDR Issues Oct 31, 2011, 14:23 Kastagir
 
Morgan19 wrote on Oct 31, 2011, 10:55:
TDR stands for "timeout detection and recovery"; it's apparently a part of Windows 7. From what I understand, what happens is that your computer reduces the power to your card, thinking nothing's using it, and Windows detects that as a problem and then the TDR error kicks in. When that happens, it makes your system freeze for a second, the screen goes black for 4-5 seconds, and then comes back with a "the display driver stopped responding" popup. It's not a hard crash (for me, anyway), but it can be annoying especially when it happens four or five times in under an hour.

I started getting them as soon as I installed a GTX 560 Ti last month, but the problem only seems to happen when I'm in Firefox. I've had three sets of Geforce drivers during the month and so far they've all done it.

For the time being, disabling TDR has worked for me.

TDR is indeed something that was added to the Win7 driver model and without it, your system would just bluescreen as it always did whenever there was a video driver failure. This often happens because the drivers don't wait long enough to do a TDR, which restarts the video driver. I've seen this happen on defective cards but also on good cards with certain games. Never with Firefox. This issue has been going on for over a year, so for Nvidia to finally come out and say they're looking at it...and ask for people to send in their video cards...is not encouraging. I guess it could be related to the BIOS that some manufacturers put on their cards, and the last thing Nvidia wants to say is to flash your card down to the reference BIOS. I'm sure that wouldn't go over well.
 
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