I have this same problem. When the computer turns off the monitor, I get self test dialog box instead of the monitor entering sleep mode.
Monitor is E228WFP. Vid card is ATI HD Radeon 2400. OS is XP Home.
Is there a way to disable the "self test feature check" in the service menu?
[BTW, pin 9 is not used for VGA/SVGA/XVGA]
Self test feature check with red,green,blue & white after loging off how can i correct this
Hey, if you're still having trouble with the monitor showing that message, its because the plug from the back of the computer has been disconnected from the monitor. It's a blue head with two small knobs. Once you plug it back into the back of the computer this will correct the problem.