not really sure what's the right component, it doesn't seem to be likely to be lightdm though since the issue happens before lightdm kicks in to repaint the display, either something in the session should be done differently but it seems not specific to one session type or desktop environment so maybe something to improve in the xorg stack?
reassigning to xorg for comments from the people who know best about that, their comment will probably be useful there ** Package changed: lightdm (Ubuntu) => xorg-server (Ubuntu) -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/984248 Title: Logging out of sessions results in a transitional black textual screen --Precise upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/984248/+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