I have managed to find some sort of work-around for this. It turns out the problem is in the xorg intel driver, not pm-utils. Switching the 2D accelleration mode from "SNA" to "UXA" as detailed here: https://wiki.archlinux.org/index.php/Intel_graphics#SNA_issues and here: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1432194 removes the problems with resume from suspend.
However, it does substantially impair the performance of my laptop, especially when I run a virtual machine with Windows as the guest OS. I have to do this quite a lot, so I guess I have to choose the lesser of two evils. This is not really satisfactory, so if there is anything else that anyone can suggest, I would love the hint. -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to pm-utils in 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/pm-utils/+bug/1452318/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs
