I just tried out the mainline 4.9-rc7 kernel and this seems to fix the problem. I am able to dock and undock and in addition suspend works after undocking.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1634325 Title: Lenovo X250 failes to suspend after being docked To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1634325/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
