I am still none the wiser as to what type of hang you are experiencing:
be it a system freeze, GPU hang or compiz being too slow.
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/469832
Title:
[945G mesa] Displaying a 'visual effect' causes system to hang
Status in “xserver-xorg-video-intel” package in Ubuntu:
Incomplete
Bug description:
Just upgraded to 9.10 on an Intel Atom system with a widescreen (16:9)
monitor.
Desktop and simple applications are fine, but opening OpenOffice and
FireFox cause the system to completely hang - all I can do is to
reboot with the power or reset button.
Similarly, the system hangs when any application displays a
transparent drop-down menu.
When I start a Failsafe session, Appearance Preferences say 'no visual
effects' and OpenOffice and FireFox don't hang.
So it seems to hang when the system tries to display a 'visual effect'
- suspect it is linked to the Alpha Channel functionality.
When I load a normal Gnome session, the menu to select Application
Preferences displays a transparent dropdown, so the system hangs and I can't
check that 'visual effects: none' is not selected...
What should happen? The system not hanging would be a good start... I can
live without transparent drop down menus for a while.
Follow-up: when browsing through the screensavers, one of them ('Euphoria')
caused the system to hang. Which rather fits the pattern. Whenever I try to
access the screensavers now, Euphoria is the default and the system hangs,
preventing me from changing it - which is annoying, but just another example fo
the bug at work.
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