(In reply to Chris Wilson from comment #10) > (There is certainly a kernel regression due to planes)
Even so, the original report makes no mention of using nightly or a very recent kernel. Also, the link to github implies the problem started to happen after an upgrade from Ubuntu 14.04 to 14.10. The latter uses kernel 3.16 and xf86-video-intel version 2.99.914. I am able to reproduce the bug with that config, getting the screen divided horizontally like in the attached screenshot. Adding Option "Present" "false" to the device section of xorg.conf works around the problem. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1395182 Title: Screen tears on xrandr orientation inverted To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1395182/+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
