So, the fundamental problem here is that Xgl doesn't forward DPMS &
screensaver stuff to the underlying X server, and all the power-
management & screensaver applications are trying to control the Xgl
server (as they should). However, this means that when (for example)
gnome-power-manager tries to disable DPMS when a movie is playing, this
doesn't affect the underlying X server, which goes ahead and turns off
the screen after 20 minutes.
A clean solution would be for the Xglx server to advertise DPMS based
upon the ability of the underlying X server, and to forward DPMS
requests to the underlying X server. A sort of work around is to turn
off all DPMS support in the underlying server, but that means that the
screen will never be blanked.
Setting back to Triaged. I'm not going to be able to do this hacking
immediately, although I don't believe it'd be too hard to do.
** Changed in: xserver-xgl (Ubuntu)
Assignee: Chris Halse Rogers (raof) => (unassigned)
Status: In Progress => Triaged
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Screen blanks after ten minutes when watching video in Mplayer with XGL and
Compiz Fusion turned on
https://bugs.launchpad.net/bugs/125947
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