The attached X log shows how there's a bunch of connects and disconnects going on when trying to use the monitors via the 'Use this display' checkmark.
** Attachment added: "Xorg.0.log.old" https://bugs.launchpad.net/ubuntu/+source/xfce4-settings/+bug/1571533/+attachment/4639062/+files/Xorg.0.log.old -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1571533 Title: Cannot use my dual-monitor setup via docking station anymore To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xfce4-settings/+bug/1571533/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs