You have been subscribed to a public bug: On Thinkpad L540 with intel graphics:
External monitors are not recognized in display settings when plugged into any dock port. They *are* recognized after a reboot (not after logout). After plugging out and the in again they are not recognized. A monitor plugged in and out of the non-dock VGA is recognized instantly. After plugging in or out of the non-dock VGA, monitors plugged to dock ports are recognized (which serves as a crazy workaround for me now). Everything used to work with 14.10, but stopped with 15.04. A recent test with 1510 live CD did not fix this. ** Affects: xserver-xorg-video-intel (Ubuntu) Importance: Undecided Status: New -- [Regression] Thinkpad dock: External monitors not recognized after 15.04 upgrade https://bugs.launchpad.net/bugs/1530171 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. _______________________________________________ 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