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-X, which is subscribed to xorg in 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 _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp