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[Launchpad Bug Tracker <469832@xxxxxxxxxxxxxxxxxx>]

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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.

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: Incomplete


** Tags: karmic lucid
-- 
Displaying a 'visual effect' causes system to hang
https://bugs.launchpad.net/bugs/469832
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