Ive just experienced this HORRIBLE bug.
Everything was working fine on my Asus A7V600-X/X1600 Pro system. Until I decided to update from 6.4 to 6.10. The monitor is CRT running through and adapter out of one of the DVI.
After updating to 6.10 the monitor started going to standby when loging into windows. (Changing resolutions)
Ive tried EVERYTHING to fix it. Ive gone back to 6.7, 6.4 and about to try older (5.9 wont support the card). No luck yet. Even though I was using 6.4 before hand without issues.
I can enter windows in VGA mode, but as soon as i try to set the res or refresh the monitor again goes to standby.
Im using it through a remote desktop app at the moment. I checked the refresh rates and even with the proper drivers installed for the monitor, its not detecting the maximum refresh and by default had set itself to 200hz. Even after setting that back to 60/75/85 or anything else, it still wouldnt turn on.
Ive used driver cleaner between each install, even played around with the advanced settings in ATITT. None of which made a difference.
Ill see what happens after the older drivers. I cant imagine why the 6.4's are no longer working, as they were previously.
Tried another CRT and get exactly the same problem. Also tried 4 different DVI adpaters without luck. I discovered that using the alternate DVI port will cause the monitor to work, but its displaying everything with green tint.
Dont know what else to do.