Just installed Windows 7 and loving it so far. But there's one problem that's been really bugging me.
Basically, I have two user accounts on the system. When User1 hits "Windows Key+L" to lock the machine and User2 comes along and clicks "switch user", the monitor will flicker to black and say "Entering power save", while the monitor's power light switches from green to amber. After 5-10 seconds, the monitor will come back on (light goes back to green) and present the main login screen that lists the user accounts. User2 then selects their account, types in their password and attempts to log into Windows....and again, monitor flickers to black, says "Entering power save" and stays black for a few seconds, only to re-appear and show the user's desktop. Nothing is affected, but it's just a real nuisance during what's supposed to be "fast" user switching.
This monitor flickering happens on every user switch, regardless of who initiates it. Both users also have identical graphical setups.
Graphics card is an ATI X1900XTX and monitor is a Dell 2007FP. I've tried running the built-in Windows WDM ATI driver
as well as the ATI Catalyst 9.1 driver but it didn't make a difference.
Any thoughts or suggestions are greatly appreciated!