Comment 3 for bug 152206

Definitely experiencing the same profoundly irritating problem on a Dell Inspiron 1420n that shipped with this bug and 32-bit 7.04 on it. It exhibited the same symptoms under the 64-bit version of Feisty, and both the 32 and 64-bit versions of Gutsy. Currently I am running 64-bit Gutsy. There's a screenshot of the bug in the forums:

http://ubuntuforums.org/showpost.php?p=3770323&postcount=11

Thanks in advance.

from xorg.conf:
Section "Device"
 Identifier "Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller"
 Driver "intel"
 BusID "PCI:0:2:0"
 Option "XvMCSurfaces" "7"
 Option "LinearAlloc" "16384"
 Option "Cachelines" "2048"
EndSection

Section "Monitor"
 Identifier "Generic Monitor"
 Option "DPMS"
 HorizSync 28-64
 VertRefresh 43-60
EndSection

Section "Screen"
 Identifier "Default Screen"
 Device "Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller"
 Monitor "Generic Monitor"
 DefaultDepth 24
 SubSection "Display"
  Modes "1280x800"
 EndSubSection
EndSection

Section "ServerLayout"
 Identifier "Default Layout"
 Screen "Default Screen"

Section "DRI"
    Mode 0666
EndSection

from glxinfo:
name of display: :0.0
display: :0 screen: 0
direct rendering: Yes
server glx vendor string: SGI
server glx version string: 1.2
client glx vendor string: SGI
client glx version string: 1.4
GLX version: 1.2
OpenGL vendor string: Tungsten Graphics, Inc
OpenGL renderer string: Mesa DRI Intel(R) 965GM 4.1.3002
OpenGL version string: 1.4 Mesa 7.0.1