I was affected by this bug as well, but it was not too annoying to me as it rarely happened, so I did not pay much attention if it were solver or not. In the other hand the resume after suspend used to work well until a software update:
Start-Date: 2015-07-01 01:24:16 Commandline: aptdaemon role='role-commit-packages' sender=':1.83' Upgrade: xserver-xorg-video-intel-lts-utopic:amd64 (2.99.914-1~exp1ubuntu4.2~trusty1, 2.99.914-1~exp1ubuntu4.3~trusty1), unattended-upgrades:amd64 (0.82.1ubuntu2.2, 0.82.1ubuntu2.3) End-Date: 2015-07-01 01:24:19 Since then, resume after suspend does not work well and the windows are not drawn properly (the same as bug #1452318 https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video- intel/+bug/1452318 ). I post here because the bugs seems to be related. I tried the proposed 2:2.99.914-1~exp1ubuntu4.5~trusty1 , but the resume after suspend problem persists. The only workaround for the moment is to switch the SNA to UXA as commented in #28, but a lack of performance is noticable as happen to #111. I attach screenshots of the problem with versions 2:2.99.914-1~exp1ubuntu4.3~trusty1 and 2:2.99.914-1~exp1ubuntu4.5~trusty1 ** Attachment added: "with_2:2.99.914-1~exp1ubuntu4.5~trusty1.png" https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1432194/+attachment/4426566/+files/with_2%3A2.99.914-1%7Eexp1ubuntu4.5%7Etrusty1.png -- 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/1432194 Title: Graphics unstable on Ubuntu 14.04 and 14.10 using Intel HD Graphics 5500 To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1432194/+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
