I have the same problem with a ThinkPad X250, also with HD5500. Only Xubuntu is affected, Ubuntu und Gubuntu work fine.
Workaround: Installation of an mainline-kernel > 4.0.1 Here, installation of 4.0.9-generic did the job. Instructions: https://wiki.ubuntu.com/Kernel/MainlineBuilds -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1456531 Title: LightDM (?) blank/white screen after resume from suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/lightdm/+bug/1456531/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
