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Old 02-21-2003, 01:33 PM   #1
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Registered: Feb 2003
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How to stop screen from going blank

This is a stupid question but how do I prevent the x screen from going blank after the system sits idle for a while. I tried a bunch of things and none of them worked. Is this a power save feature or just a screen saver? Could it being on a KVM switch screw things up?
Old 02-21-2003, 03:56 PM   #2
Registered: Oct 2002
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It's most likely a power management feature. Additionally, check your screen saver settings to see if there's a timeout feature that will make your screen go blank after so many minutes. I know there's a setting for Gnome screensavers that you can set to make it go blank.
Old 02-21-2003, 04:03 PM   #3
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Yea is maybe a screensaver, mines is setup to go blank in 60 minutes, so maybe thats your problem.. KDE Menu --- Preferences--- Look & feel --- Screensaver.. I hope this solves your problem.
Old 02-21-2003, 05:01 PM   #4
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i personally use xscreensaver for my .... uh screensaver. if you don't know how to run it go to terminal and type <xscreensaver> and a GUI will pop up. click on settings and go to advanced tab. there will be a setting to shut off the energy settings.
if you ever want to get this back then type <xscreensaver-command -demo> and this will bring back the GUI.
hope this helps
Old 02-21-2003, 05:48 PM   #5
Registered: Feb 2003
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care of Slapnut from JL:

Do this as root to disable the sleep mode... etc.
/sbin/chkconfig --level 123456 apmd off
<edit> Either reboot to make changes or:
/etc/rc.d/init.d/apmd stop </edit>
If it doesn't help then turn it back on with:
chkconfig --level 345 apmd on.
<edit> Either reboot to make changes or:
/etc/rc.d/init.d/apmd start </edit>
Old 02-21-2003, 09:51 PM   #6
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Possibly the setterm command is what your looking for.

man setterm for more details.
Old 02-22-2003, 12:33 PM   #7
Registered: Feb 2003
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Also you should check the BIOS. Often the BIOS has an option for power saving which overrides software settings.
Old 02-22-2003, 11:35 PM   #8
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I had a problem with this when installing Gentoo - system would never come back from the blank screen. Had to put a weight on the shift key while compiling everything to keep the screen up

BIOS settings had no effect, and this is deffinately not a screensaver, etc...

I'll have to note some of the solutions above.
Old 02-23-2003, 01:24 AM   #9
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I believe trickykid has a better solution for this one, setterm.

in the man page: -powersave off
Old 02-25-2003, 09:05 PM   #10
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Some versions of Slackware, others may or may not do this, have a command in
in the form
/bin/setterm -blank 15

The most recent version of X I installed (4.2.1) does not over-ride this, so if I don't use it for a while, the screen blanks. FInd the equivalent file in your system boot chain and either adjust it or block it from executing, as suits your purpose.

Last edited by MikeVx; 02-25-2003 at 09:06 PM.
Old 02-26-2003, 10:36 PM   #11
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I use a utility called xset to disable the dpms screen saver and to change the mouse tracking speed.

Realize that my RH8 installation is a little unconventional for a workstation in that (a) I boot to the console and start X using the startx script and (b) I use IceWM rather than Gnome or KDE desktop.

Here's the relevant excerpt from the ~/.Xclients script (called by startx).

# Change the mouse tracking speed.
xset m 4 2
# Disable the screensaver.
xset s off
# Disable Energy Star.
xset -dpms
# Start the window manager.
exec /usr/bin/icewm || exec xterm -fg red

I don't know how you'd go about using this with XDM.

Last edited by joewalp; 02-27-2003 at 07:44 AM.


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