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[Bug 219808] [NEW] Using "Group and Tab Windows" with more than one group causes hangs/freezes

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From: Launchpad Bug Tracker <219808@xxxxxxxxxxxxxxxxxx>
Date: Sun, 27 Sep 2009 10:09:41 -0000
Reply-to: Bug 219808 <219808@xxxxxxxxxxxxxxxxxx>
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Binary package hint: compiz-fusion-plugins-extra

I have a Dell XPS M1710 laptop with an NVIDIA GeForce Go 7900 GS running
mostly Gutsy, but with the Kernel/Compiz/X/NVIDIA packages installed
from Hardy.

If I enable the Group and Tab Windows plugin and create more than one
group, then the desktop will hang the next time that I do certain
actions. For example, switching workspaces triggers it, as does
switching windows with the Shift Switcher. It does not happen if I
create only one group. The hang is characterized by:

- No updates to the screen
- No response to key presses or mouse clicks (though the pointer still moves and Ctrl+Alt+Fn still works for switching virtual terminals)
- compiz.real and Xorg run hot (i.e., take ~20-30% CPU each on my machine)
- compiz.real does not respond to kill -15 and must be kill -9'ed
- After killing compiz.real, Xorg takes 100% CPU and must be killed too

$ lsb_release -rd
Description:    Ubuntu 7.10
Release:        7.10
$ apt-cache policy compiz-fusion-plugins-extra
compiz-fusion-plugins-extra:
  Installed: 0.7.4-0ubuntu1
  Candidate: 0.7.4-0ubuntu1
  Version table:
 *** 0.7.4-0ubuntu1 0
         -1 http://ca.archive.ubuntu.com hardy/main Packages
        100 /var/lib/dpkg/status
     0.6.0+git20071121-0ubuntu1~gutsy1 0
        500 http://ca.archive.ubuntu.com gutsy-backports/main Packages
     0.5.2+git20070928-0ubuntu1 0
        500 http://ca.archive.ubuntu.com gutsy/main Packages

[lspci]
00:00.0 Host bridge [0600]: Intel Corporation Mobile 945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub [8086:27a0] (rev 03)
    	Subsystem: Dell Device [1028:01ce]
01:00.0 VGA compatible controller [0300]: nVidia Corporation GeForce Go 7900 GS [10de:0298] (rev a1)
    	Subsystem: Dell Device [1028:019b]

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

** Affects: linux-restricted-modules-2.6.24 (Ubuntu)
     Importance: Undecided
         Status: Confirmed


** Tags: hardy
-- 
[Compiz] Using "Group and Tab Windows" with more than one group causes hangs/freezes
https://bugs.edge.launchpad.net/bugs/219808
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