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[FactTech <541492@xxxxxxxxxxxxxxxxxx>]

It's not clear to me what the status of this bug is right now, but for
anyone experiencing the issue and/or still working on it, I thought I
would add some details that might be useful.

I'm running Ubuntu Lucid Lynx on an eMachines T2824.

kernel = 2.6.32-31-generic
graphics = Intel Corporation 82845G/GL[Brookdale-G]/GE Chipset Integrated Graphics Device (rev 01)

I have the lucid-proposed repository enabled with all updates as of
today applied. No special PPAs or other software sources are enabled.

Machine will reliably lock up with zebra-stripes/flashing/non-
recoverable symptoms as described by other users but can ssh in and
usually will be given the option to revert to a console on the affected
machine.

I have found that if I disable the screensaver, screen effects, and
power management, the machine will run for a very long time without
problems (days to weeks), but I do not use this machine for anything
graphic-intensive.

Since it seems like the precise cause of this issue is not well
understood, the one piece of information I wanted to point out for
developers is that I found if I set the Appearance Preferences to use
Clearlooks, this same machine will reliably lock up fairly quickly
(usually within the first 60 minutes after login). On reverting to
Ambiance, this behavior stopped. That doesn't make a lot of sense to me,
but it seems reproducible and might be helpful in identifying the exact
trigger. Trying to use various screensavers (especially OpenGL-based
ones) will also reliably cause a crash.

If there's anything I can do to help resolve this issue, I am happy to
do so. This note is mainly for other people who are experiencing the
issue and want a workaround that doesn't involve installing non-standard
packages.

Also: Anyone who has their screensaver stuck on a "bad" one and can't
change it back, see the instructions at
http://ubuntuforums.org/showthread.php?t=651868 to use gconf-editor to
change it to blank only. From there, you can open the screensaver
settings and disable it.

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https://bugs.launchpad.net/bugs/541492

Title:
  MASTER: [i845] GPU lockup