This Bug affects me too. Lenovo Thinkpad x250 with Docking-Station. BIOS is showing up via Display Port, but when/after loading GRUB the monitor gets no signal.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1578196 Title: External Display Port monitor not working To manage notifications about this bug go to: https://bugs.launchpad.net/xorg-server/+bug/1578196/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs