On Tue, Oct 12, 2004 at 07:16:47PM +0100, Graham wrote:
Ah, at last someone with a shared pet hate. Now if only I could persuade Linux to tell the monitor to shut down. Is there a guide to power management and how to make it work? I've fiddled around in KDE, changed BIOS settings etc but all I get is a nearly-black screen which the monitor ignores.
Ignoring the KDE part for now do you have a line saying Option "DPMS" in your XF86Config-4? (an example of mine is pasted below below)
Section "Monitor" Identifier "Generic Monitor" HorizSync 30-130 VertRefresh 50-200 Option "DPMS" EndSection
Also in the XFree86 log I see this which tells me DPMS is being enabled.
(II) Loading extension DPMS (**) Option "dpms" (**) NVIDIA(0): DPMS enabled
You can then try the commands
xset dpms force off xset dpms force suspend xset dpms force standby xset dpms force on
and see what happens, If they don't work for various types of power management then I don't think KDE has a chance. If they do work for you and not in KDE then I guess that you will need to start looking at KDE as the possible culprit but if not then it could be you have a video card/monitor combination that doesn't want to do power saving, and to be fair I have never had much success trying this with machines running Windows or Linux so I tend to just use the power switch ;) The best always seems to be /very/ nearly off but there is still a very faint glow from the screen.
Adam