That confirms that pageflipping is the direct cause of the hangs. Very recently suspicion has been raised that the gen4 pageflipping irq handling may be racy - which would help explain why all the reports of this hang I've seen so far have been gen4.
-- You received this bug notification because you are a member of compiz packagers, which is subscribed to compiz in Ubuntu. https://bugs.launchpad.net/bugs/1116587 Title: Lenovo T400: With external monitor the system is rarely working for more than 10 minutes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/1116587/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~compiz Post to : compiz@lists.launchpad.net Unsubscribe : https://launchpad.net/~compiz More help : https://help.launchpad.net/ListHelp
