The issue didn't occur anymore. It was fixed by a new Ubuntu version, I think it was 14.10.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1374842 Title: Impossible to use 2x DisplayPort (Dualmonitor) with HP EliteBook 840 G1 on HP 2013 UltraSlim Docking Station To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity-control-center/+bug/1374842/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
