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Bug#643706: [xserver-common] Gnome desktop environment lags and lockups with excessive Xorg CPU usage afer upgrading



On Wed, Sep 28, 2011 at 22:36:35 +0200, M Z wrote:

> Package: xserver-common
> 
> Version: 2:1.11.1-1
> 
> Severity: normal
> 
> 
> --- Please enter the report below this line. ---
> 
> After upgrading xserver-common from 2:1.10.4-1 to 2:1.11.1-1 (aptitude
> update; aptitude full-upgrade every day) and restarting the computer I
> noticed enormous lagging in Gnome desktop environment with excessive
> Xorg CPU usage observed by top. Switching between application with
> alt+tab (eg Icewaesel and Gnome Terminal or Rhytmbox and Gnome
> terminal) takes noticeably more time than before and provokes Xorg
> process to consume more than 40% of CPU (in some cases over 85% while
> the whole desktop environment locks up). Even running Rhytmbox
> fullscreen (no visualization, just one sliding element showing
> progress of track) makes Xorg process to consume more than 30% of CPU.
> Minimalizing the Rhytmbox puts the Xorg process back to 1%. Looks like
> Gnome applications (GTK?) are affected the most - eg Nautilus and
> Gedit are almost unusable, creating new empty tab in these
> applications lockups whole desktop for a few seconds (again with
> excessive Xorg CPU usage).
> 
> I haven't noticed something interesting in standard system logs, only
> this in dmesg, but I don't know if is related though:
> 
> oosplash.bin[2670]: segfault at 968 ip 00007fdf7b1a8136 sp
> 00007ffff695da00 error 4 in libX11.so.6.3.0[7fdf7b167000+139000]
> 
> 
> Will gladly provide more informations if needed.
> 
Run '/usr/share/bug/xorg/script 3> 643706.txt' and send the resulting
file to this bug.

Please use reportbug next time so most of the relevant information is
not missing.

Cheers,
Julien



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