View Full Version : [ubuntu] Compiz seg fault in libunityshell

Siva Sankaran
October 21st, 2011, 03:46 PM
Background Information:
Pentium Dual Core E5400
Kernel Linux 2.6.38-11-generic
GNOME 2.32.1
I have upgraded to natty(11.04) from maverick a month ago with some errors like this

The package "gconf2" failed to instal or upgrade
.. .. . . . .
. . . .
Processing was halted because there were too many errors
upgrade complete
The Upgrade has completed but there were errors during the upgrade process Initially unity dash menu was not there. Afterwards I got it by this wayhttp://ubuntuforums.org/showpost.php?p=11246666&postcount=2

Once there was a problem: Ubuntu software center cant open because of segmentation fault(It prompts when I tried from terminal). But from the next boot itself software center can be launched as usual.
Problem is:
The applications which are running, desktop icons and top panel disappeared suddenly. And all appear again in a fraction of second. They appear and disappear again and again very fast like blinking.
1) when I checked kernel log, it has this -> http://paste.ubuntu.com/715137/
Some folders are opened in nautilus and a text file opened in gedit. I am browsing with firefox(7.0.1) and doing text chat in skype(beta version, while this happens. Whenever a (skype)pop up window alerting that a incoming text in chat.

The blink comes to end when closing some applications like nautilus and gedit.

Finally I had only skype window the blink happens again and come to end after 4 or 5 time blinking.

2) This happens some time when clicking wherever on top panel. I have opened chrome with youtube and firefox(2 windows). This time kernel log reads with slight difference look here http://paste.ubuntu.com/715147/ Here note the error is in libsigc-2.0.so.0.0.0 in previous case it is libunityshell.so

3)Another case here error in libX11.so.6.3.0

Oct 20 11:01:09 workstation kernel: [ 6574.156821] compiz[2512]: segfault at 1 ip 00843ed8 sp bfde62f0 error 6 in libX11.so.6.3.0[817000+116000]
The above log is repated many times
4)One another case http://paste.ubuntu.com/715157/
It says something like "Hangcheck timer elapsed... GPU hung". This log exactly from the blinking begins. Because I watched carefully before the blinking.Here error in i965_dri.so
My Question:
1) Shall I Uninstall compiz now ?
2) I dont know deep technical details enough to report the segmentation fault
how to fix it ?
3)if I upgrade to Oneric, Will the problem be solved ?