Culprit seems to be the desktop effects: I noticed that switching worked one way from the user who had desktop effects disabled. Once I disabled the effects for both users, I can now switch back and forth between them reliably.
-- User switching breaks X-session(s) https://bugs.launchpad.net/bugs/565835 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-ati 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