I've had this issue on my T450s with 15.04 MATE since March. I've also had the issue where the screen is completely black after resume and I need to change screens (Alt-Ctrl-F2, Alt-Ctrl-F7) to get the window manager back. This happens on external screens (Ultradock) and on the built-in screen. I will try UXA to see if that solves things.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1452318 Title: Faulty behavior when resuming from suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1452318/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
