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[Bug 314928] Re: [i915GM] MTRR entry gets removed when restarting xorg - causes corruption on ttys

To: ubuntu-x-swat@xxxxxxxxxxxxxxxxxxx
From: Andy Whitcroft <apw@xxxxxxxxxxxxx>
Date: Mon, 11 May 2009 15:45:02 -0000
Reply-to: Bug 314928 <314928@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

@bryce -- could you give us some insite into the x-servers interaction
with the MTRRs here.  It appears from the logs in the previous couple of
comments that the x-server is also attempting to instigate and remove an
MTRR for the AGP aperture.  Yet it seems to be failing to create in in
our case, but still managing to remove it on exit.  There appear to be
two errors in behaviour here from xorg:

1) it is removing the AGP mtrr regarless of whether it was it that installed it
2) when there is no mtrr at start it seems to fail to add one dispite trying

Perhaps you can point me to the right place in X or some docs as to the
expected behaviour.

-- 
[i915GM] MTRR entry gets removed when restarting xorg - causes corruption on ttys
https://bugs.launchpad.net/bugs/314928
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