Yeah the unity8 log makes me suspect qtmir, it deals with disabling the display ok, but enabling it doesn't yield 2 screens again
** Also affects: qtmir Importance: Undecided Status: New ** Changed in: qtmir Status: New => Confirmed ** Changed in: qtmir Importance: Undecided => High -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to lightdm in Ubuntu. https://bugs.launchpad.net/bugs/1638929 Title: after disabling a display, enabling makes screens go black Status in Canonical System Image: New Status in Light Display Manager: New Status in Mir: Incomplete Status in QtMir: Confirmed Status in lightdm package in Ubuntu: New Status in unity8 package in Ubuntu: New Bug description: Reproduce: turn off then turn on some display (output.used = false then output.used = true) What happens: Turning off works fine, turning it back on does not What should happen: it should work as expected USC log: http://pastebin.ubuntu.com/23420797/ Unity8 log: (see that mirserver: Disabled works fine) http://pastebin.ubuntu.com/23420803/ To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1638929/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp