ubuntu-x-swat team mailing list archive

[disco_stew <stewart.andrew.j@xxxxxxxxx>]

I am experiencing a similar sounding problem on a Dell Inspiron 6400
with a Mobility Radeon X1400 GPU running Lucid 64bit with the 2.6.32-22
kernel. Boot will randomly freeze with red vertical lines (artifacts) at
the top of the screen. When this happens the machine is *completely*
frozen, i.e. cannot Ctrl+Alt+F1 to drop to a terminal, cannot even do
Alt+SysRq+REISUB for a reboot. Even it thought it's random, it happens
quite frequently, probably close to 50% of the time on average.

I tried booting without the splash to catch an error message but even
then the screen is completely corrupted and nothing can be seen. I am
running another 64bit machine with the same kernel, but Intel graphics
and never experience this problem. That and the screen corruption seem
to confirm that it is an ATI problem.

-- 
vertical coloured lines on bootup dell inspiron 1501
https://bugs.launchpad.net/bugs/572521
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