- Oct 23, 2000
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I have a computer running Windows 7 Home Premium on a Dell Vostro 200 with a Dell 17 inch LCD (1708FPb). This same computer running Windows XP did not have this problem, but with a clean install of Windows 7 the LCD no longer turns off when the computer is idle (based on the power management settings). Windows stops sending a signal to the monitor as it should, but it apparently isn't sending the signal to monitor to turn itself off as well. Instead of going to sleep, the monitor just goes into "Self Test/No Signal" mode and stays there until I either manually turn it off with the power button or I wake the computer with the mouse or keyboard. I have installed the driver for the monitor and verified that the power management settings are correct.
I've searched using every combination of wording that I can think of on Google and got a few results about laptop screens that don't apply, and lots of results about computers not booting at all, but nothing related to this issue.
This isn't a huge problem since I can use the monitor's power button if I have to, but I'd rather have it just work the way it is supposed to and have the screen to go to sleep when the Windows Power Management tells it to so that it isn't using power and so that it isn't lighting up the room while flashing the "no signal/self test" message.
I've searched using every combination of wording that I can think of on Google and got a few results about laptop screens that don't apply, and lots of results about computers not booting at all, but nothing related to this issue.
This isn't a huge problem since I can use the monitor's power button if I have to, but I'd rather have it just work the way it is supposed to and have the screen to go to sleep when the Windows Power Management tells it to so that it isn't using power and so that it isn't lighting up the room while flashing the "no signal/self test" message.