The 4.7-rc1 kernel was not bootable on my system. However, I have been
testing with 4.6.0-996-generic #201605082201 from drm-next and the
behavior is better. With the drm-next kernel, I am able to dock/undock
the laptop multiple times without a freeze and the displays are
recognized and can be setup. The configured display layout is applied
successfully on docking, unlike with the 4.4.0-22 kernel. I do have one
persistent issue with the drm-next kernel, I have to change to a VT and
back to get display output after docking - but I don't think its related
to this issue. This intel stuff sure seems like a mess.

-- 
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1568573

Title:
  [Lenovo Thinkpad T460] 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/1568573/+subscriptions

-- 
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs

Reply via email to