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The command `xset s reset` will reset the X server screensaver to reset the timer for the screensaver and dpms. If the display is already on, it should do nothing as far as the hardware goes. In the SISVGABlankScreen routine it requires as reset to update the register, but that will disrupt the VGA signal and cause the monitor to resync leaving the screen blank for a couple seconds. I have a program that wants to keep the screensaver from coming on, but allow normal operation when it isn't running. Debian bug#546838 <http://bugs.debian.org/546838 > Signed-off-by: Julien Cristau <jcristau@debian.org>
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