best to try the new xenial snapshot before filing a bug upstream (once it's built):
https://launchpad.net/ubuntu/+source/xserver-xorg-video- intel/2:2.99.917+git20151217-1~exp1ubuntu1 -- 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/1507255 Title: Garbled graphics in Wily with Intel GMA4500 chip To manage notifications about this bug go to: https://bugs.launchpad.net/hundredpapercuts/+bug/1507255/+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