Bug#673505: general: xorg and xserver-xorg 7.6+13 always made X and gnome-shell dead

[Xueqian <xueqianz@mtu.edu>]

Package: general
Severity: important

Dear Maintainer,

Recently, I have upgrade packages xorg, xserver-xorg, xserver-xorg-input-all and 
x11-common from 7.6+12 to 7.6+13. 

After that, my desktop environment was always dead that cpu of X became 70% and cpu of gnome-shell occupy the other 30%. 
And I had to forcely shutdown the X service and re-type startx to start the gnome-shell.
The reason that I observed to make X dead is mainly due to using ibus 
and operating browsers that includes firefox 12, iceweasel 10, and google chrome.
I did not observe that other operating or software result in the same problem.

Since more than half of my gnome packages are version 3.4, while some are version 3.2, as well as gnome-shell and gnome-shell-extension.

Thus, I do not know whether the problem results from gnome-shell or xorg.
The reason that I report the title relevant to xorg is that I found sometimes 
the xorg info showed some bugs "Gdk-WARNING: x-session-manager: Fatal IO error 11 on X server: 0.#012" and sometimes related to kbd (I can not find the error info now.)

Thanks

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-- System Information:
Debian Release: wheezy/sid
  APT prefers testing-proposed-updates
  APT policy: (500, 'testing-proposed-updates'), (500, 'testing')
Architecture: i386 (i686)

Kernel: Linux 3.2.0-2-686-pae (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash