(In reply to comment #189) > Hi Chris, > > OK, nothing of the above was the reason. In my case it's simply this: > > /etc/X11/xorg.conf.d/20-intel.conf > > Section "Device" > Identifier "Intel Graphics" > Driver "intel" > Option "TearFree" "true" > EndSection > > > I added it when the tearing scrolling through large webpages annoyed me. > As soon as I added it, the problems quickly started. > > Selfmade problem.
Not really, https://bugs.freedesktop.org/show_bug.cgi?id=70764 tracks that this hang is more likely with TearFree (fundamentally the hang is still the same hardware issue, but it is interesting that TearFree has a higher chance of hitting it). If you want to experiment: http://cgit.freedesktop.org/~ickle/linux-2.6/log/?h=requests should have an interesting fix, at least for trying to prevent the TearFree leading to the semaphore hang. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/1140716 Title: [regression] 3.5.0-26-generic and 3.2.0-39-generic GPU hangs on Sandybridge To manage notifications about this bug go to: https://bugs.launchpad.net/dri/+bug/1140716/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
