Seems to be solved with the LTSEnablementStack in 14.04.4. I'm using kernel 4.2.0-27-generic and X and Mesa from lts-wily.
For how to upgrade see: https://wiki.ubuntuusers.de/LTS_Enablement_Stacks/ Works for my Folio 9480m in HP 2013 UltraSlim-Docking Station -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1376581 Title: DisplayPort monitor not properly detected via HP ultraslim docking station 2013 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1376581/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs