Good news! ~$ uname -a Linux talas 4.9.0-040900-generic #201612111631 SMP Sun Dec 11 21:33:00 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
Undocking and docking repeatedly works for me. None of the logs shows i915 errors. I do have to killall unity-settings daemon at every docking to reload the monitors.xml configuration (rotation and turning off the laptop screen), but that's quite preferable to rebooting the system (and by now a hotkey). A related question: I do need both the nvidia module (for primusrun) and vboxdrv for work. Any reasonably comfortable method to load them with mainline 4.9? Don't want to be stuck with rebooting until 17.04. ** Tags added: kernel-fixed-upstream-4.9 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1651454 Title: [Lenovo Thinkpad T460p] Ultra Dock external displays not detected after suspend/resume cycle To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1651454/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs