Hello everyone, this is a problem that's driving me nuts.
I did a fresh install of Windows 7 x64 and everything worked fine out of the box. I was using original MS driver (8.56.1-081104a-071877E-ATI).
Then, I downloaded latest Catalyst Drivers (13.1) and the problem that I have now is that every time I restart my Windows, the next boot I have "no video signal" (monitor goes to energy saving), but my Windows loads fine (I can hear the Windows Startup sound).
2 things I noticed: when this happen, I have no video in BIOS and the GPU cooler does not slow down when Windows loads, as is usual.
Then, with no video, I am able to log into Windows and restart using "shutdown /r". When the computer restarts, hooray, I have video. But if I restart again, the same things happen all over again. This is 100% reproduceable in my system, happens every time.
Summary: I have video in 1 of 2 WIndows boots, every time.
I reverted my drivers to 8.56.1-081104a-071877E-ATI through Windows, and the problem stopped! So, I guess this is somehow Driver related.
I am willing to try everything you guys recommend me. I wish I could boot normally with latest drivers.
Thank you very much in advance,
Obs.: PSU is 550W Corsair, MoBo is Asus P6T, GPU is Saphire 4870 X2, mem is 3x 2G Corsair DDR3, PS2 Keyboard, USB mouse
i7 Bloomfield 920 - 6G DDR3 Corsair Triple Channel - Radeon HD 4870 X2 - LG Flatron W1952TQ - Asus P6T