ubuntu-x-swat team mailing list archive

[Andrew Bennetts <andrew.bennetts@xxxxxxxxxxxxx>]

It was the first time for this sort of failure, but it actually wasn't a
system freeze: I could switch to virtual consoles and back, but no
amount of trying to restart unity would work; each time compiz would
crash.  I was left with no ability to type in X, and no window
management.  Hence the lack of comment in the original description: the
best I could do to satisfy Launchpad's demand for a description was to
copy and paste the pre-filled summary with my touchpad.  I did resort to
restarting my system after that, as it was due for a restart according
to update-manager.  [And then it was late so I went to bed and forgot to
follow up on this bug to explain in more detail.]

I don't recall any failures like this one on maverick.  I got freezes
only very rarely on maverick, but did sometimes get *extremely* slow X,
where input would take many seconds to have any effect (and IIRC CPU
spinning at 100%).  IIRC that was triggered by switching between
different X sessions (e.g. between the guest login and my login)..

On reproducing: so far it's just happened once, for no obvious reason,
so I'd have to say “randomly”.

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https://bugs.launchpad.net/bugs/767102

Title:
  [arrandale] GPU lockup (ESR: 0x00000001 IPEHR: 0x08000020)