** Description changed:

  Binary package hint: xserver-xorg-video-intel
  
  I'm having this bug for one year with kubuntu 7.10,8.04 and 8.10 on a
  Dell latitude D630, with Intel GM965 video card.
  
  Randomly, the system crashes with some kind of vertical stripes (or 
'ladders') across the screen.
  Keyboard and mouse is not responsive. Even ALT+SYS don't work. I have to hard 
reboot using the power button.
  See screenshot (from hardy).
  
  It can happen when I'm working, but it seems that most of the time it happens 
when I do nothing.
  Sometimes it happens a few seconds after login dialog (like in screenshot).
  
  It is very difficult to debug because it occurs about only once every
  two weeks.
  
  Is see no timed trace in log files. Only thing that could be related is
  (EE) intel(0): underrun on pipe B! 
  in Xorg.0.log
  That's why I put it under xserver-xorg-video-intel (I'm using now version 
2:2.4.1-1ubuntu10)
  I use a dual screen setup in xorg.conf (even when I'm not connected to an 
external monitor), but I think it happened also with a plain setup.
  
  Interestingly it has happen a couple of time when I was listening to
  music, and after crash I could still hear some distorted sound...
  
  First I thought it was hardware problem, but all tests passed
  successfully and I even had Dell change the motherboard.
  
  I also ran kubuntu from an external HD, and it crashed again anyway.
  
  So you guys are my last hope :)
+ 
+ [lspci]
+ 00:00.0 Host bridge [0600]: Intel Corporation Mobile PM965/GM965/GL960 Memory 
Controller Hub [8086:2a00] (rev 0c)
+       Subsystem: Dell Device [1028:01f9]
+ 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 
GM965/GL960 Integrated Graphics Controller [8086:2a02] (rev 0c)
+       Subsystem: Dell Device [1028:01f9]

-- 
[i965] random crash with vertical stripes
https://bugs.launchpad.net/bugs/309927
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