I have a problem with the GTX295. Sometimes, randomly (in-game, in windows or when I watching a film) the monitor turn to black for 2 seconds. The led of the monitor show me that it is on. Even that I change the monitor for another one (same model) but the problem still there with the new monitor too.
But the extrange thing is whith the same pc but with a 19" (1280x1024) LG I can play, work or watch a film perfectly without any black screen. Can be possible that the Graphic card were broken working at 1900x1200?
LG Flatron W2452V
Asus P6T Deluxe
F.A. Be Quiet BQT P7-PRO 750W Dark Power
I don't know what to do, change the graphic card or buy another monitor, i don't know where the problem is...
I know that a 19" don't support more than that, but I put an example with another monitor that I have. But the problem is solved, i bought yesterday a Samsung T240 instead to change again the LG 2452V for another one, and the error did not appear...
I have exactly the same system as you with the exception of the graphics card; mine is GTX 260. I have the same problem with the monitor (same model as yours). LG have changed it 3 times and insist it is not their monitors fault. The computer firm changed the motherboard from a DFIx58 to the ASUS p6t. The problem still is there.
It may just be Vista 64 resetting the driver, check the event log.
I have exactly the same problem. In game, in window, everything, the monitor turn black about 2 seconds. I updated the drive, tested the HDMI, and the problem keeps.
ASUS P6T DeLuxe V2
Core i7 920
Corsair Dominator 3x2GB
Win7 Ultimate 64