[Bug 563277] Re: Please blacklist older 8xx cards from using KMS

[Christiansen]

If stability is an issue, I'm not sure if the latest approach taken in
kernel 2.6.31-21.32 is right - at least for an ThinkPad Intel i855 GPU
like this:

00:02.0 VGA compatible controller [0300]: Intel Corporation 82852/855GM Integrated Graphics Device [8086:3582] (rev 02)
Subsystem: IBM Device [1014:0557]

Latest update to kernel 2.6.31-21.32 makes_X_completely_lock_up_the_box on bootup, while booting into an older kernel like 2.6.31-18.xx still works fine. All updates as of 2010.04.17 applied, and using X-server module from "xserver-xorg-video-intel_2.9.1-3ubuntu4_i386".
Booting -21.32 in rescue mode and manually starting X also locks up the box completely right away. 

Downgrading to previus kernel -21.31 without the changes from comment
#2, X startup works fine and stability is just perfect on the box too.
Even running when compiz with a downgraded Intel X-server module from
previous "xserver-xorg-video-intel_2.9.1-3ubuntu2_i386" works completely
stable.

-- 
Please blacklist older 8xx cards from using KMS
https://bugs.launchpad.net/bugs/563277
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