On Aug 30, 2011, at 01:32 AM, Bryce Harrington wrote:

>It sounds sort of like gnome-settings-daemon is not capturing the
>settings properly, so your system is defaulting to 10 minutes.  I notice
>this in your dmesg which hints perhaps gsd is dying (coincidentally in
>some power module):
>
>[22483.782153] gnome-settings-[2178] trap divide error ip:7fdd4a47931b
>sp:7fff856edb10 error:0 in libpower.so[7fdd4a46b000+17000]

Indeed, I think this is exactly the problem.  xset reported dpms at 600 for
all three values, which is, of course, exactly 10 minutes.  I've manually set
these to 3600 and we'll see, but I'm fairly confident this will increase the
screen blank time to 1h.  This has to be reset on every reboot.

To the g-s-d maintainers: please let me know if there's anything further I can
do to help you debug the problem.  

Thanks Bryce.

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https://bugs.launchpad.net/bugs/836945

Title:
  Screen always goes blank after 10 minutes

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