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Message #80520
[Bug 599626] Re: [arrandale] X freezes after plugging in external monitor and selecting System>Preferences>Monitors
Bonne, what exactly do you mean by "it worked the second time"? Do you
mean that there was no freeze or that it froze but did not bring the
network down? If it froze, the logs show that this is not a GPU hang as
I first suspected.
Do you connect to the computer via wireless? The wireless networking is
started from X, so if X goes down it may take the wireless connection
with it. For debugging X issues it is better to be connected via an
ethernet cable.
What you write in commen #6:
BUG: soft lockup - CPU#0 stuck for 61s! [plymouthd:409]
indicates that this may have something to do with plymouth. Could you remove the boot option "splash" (in the same way as you added drm.debug=0x02) and see if that changes the result of any of the tests?
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[arrandale] X freezes after plugging in external monitor and selecting System>Preferences>Monitors
https://bugs.launchpad.net/bugs/599626
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