ubuntu-x-swat team mailing list archive

[Chris Halse Rogers <raof@xxxxxxxxxx>]

The underlying problem here is that the GPU is locked up.  Nouveau
doesn't have the same sort of GPU hang detection that Intel (or Radeon,
for that matter) have, so what happens is that any time something tries
to touch the card it never gets a reply.  After a while, X notices, and
you get a EQ overflow.

Nouveau has no way of resetting the card, so it's going to remain locked
up until you restart.

Upstream is looking at reverse-engineering a processor on the newer
nouveau GPUs which they believe to be behind this instability.

Until they've got that done, it might be worth quirking off acceleration
on these cards.

** Package changed: xserver-xorg-video-nouveau (Ubuntu) => linux
(Ubuntu)

** Tags added: kernel-graphics

-- 
X freeze/crash with nouveau driver
https://bugs.launchpad.net/bugs/553789
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