*** This bug is a duplicate of bug 1382677 ***
    https://bugs.launchpad.net/bugs/1382677

The succesfull workaround for Xorg crashing on Intel GM45 integrated
graphics on Lenovo T400 was to create the the following file

/usr/share/X11/xorg.conf.d/20-intel-gm45.conf

Section "Device"
    Identifier  "Intel Graphics"
    Driver      "intel"
    Option      "AccelMethod"  "uxa"
EndSection

Swtiching from SNA to UXA alleviated all the problems.

As a side note, gtkperf tool is very reliable to reproduce SNA Xorg
crashes.


** This bug has been marked a duplicate of bug 1382677
   Xorg crashed with SIGABRT in __GI___libc_free()

-- 
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which is subscribed to xorg-server in Ubuntu.
https://bugs.launchpad.net/bugs/1383449

Title:
  Xorg crashed with signal 7 in start_thread()

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