Ubuntu
firefox package

Random keyboard input loss

Bug #150169 reported by Leonard Broman
4
Affects Status Importance Assigned to Milestone
Mozilla Firefox
New
Undecided
Unassigned
compiz (Ubuntu)
New
Undecided
Unassigned
firefox (Ubuntu)
New
Undecided
Unassigned

Bug Description

Randomly during use the computer stops responding to certain user input. The keyboard and mouse (touchpad) buttons stop working, however the mouse pointer is still moving. No X actions (like compiz "exposé") work either. The only solution when it happens is to hard reboot with 4second on power button.

This bug has started occuring the last weeks, and happen randomly about once a day. I am running Gutsy.

See original description
Revision history for this message
Leonard Broman (firepiper) wrote :

I have now been able to pinpoint what causes this.

Visiting this site: http://www.tictac.rennes.fr/Horaires.php?Date=2/9/2007&OrganismeID=70&TypeAccueilID=52&Cle=PeriodeID&ID=9905

in firefox and trying to drag on the .js field with the timeline puts the system into the named state. It is thus not related to the bug i mentioned.

Revision history for this message
timmyclub (tim-timmyclub) wrote :

I am having exactly the same symptoms, but cannot replicate it using that site with the timeline.

This has only happened since my upgrade to Gutsy. I cannot pinpoint a cause, but I would hazard a guess that it is compiz or xorg related. My music continues playing in amarok. Ctrl+Alt+Backspace doesn't help.

I'm not running any 'unusual' hardware. It's an ATI card though, running their binary drivers.

Leonard Broman (firepiper)
description: updated
Revision history for this message
Leonard Broman (firepiper) wrote :

This seems to be related to window shadows in compiz. I have ran into two situations. Playing with the shadow radius (in compizconfigmanager) causes the crash described, music also stops.

Playing with any other shadow settings causes an effect which can be described as loss of opengl acceleration, everything goes really slow, but the effects are still working.

Revision history for this message
timmyclub (tim-timmyclub) wrote :

Had the issue again today. I logged in remotely and ran 'top'. Xgl was using 99% CPU. I killed it and tried to restart X, then Xorg was using 99% cpu. I couldn't get it to start working again anyway... but I'm no expert!

..so I rebooted it remotely.

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