Relevant section of the multi-monitor specification: "When the laptop lid is closed, the internal panel is disabled, automatically setting the external monitor as the Primary display and moving all windows from the internal panel across. A power-on signal is also sent to the external display (through the H-sync and V-sync pins: as specified in the VESA DPMS spec), to ensure that it is awake."
https://docs.google.com/a/canonical.com/document/d/1aHvJ-iIw- 59bXTYBmIhQqEx0za2h9jpFE_RhZ2VOvJc/edit?authkey=CJO5wPkH&hl=en_GB#heading=h.ybfxpw1z2cud -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/921313 Title: closing laptop lid while connected to an external display does not disable the laptop screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/921313/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp

