It appears that this bug is caused by bug #1013548 "session manager must be in idle state when requesting a shutdown" so I have marked that one as a dupe of this one.
The bug is now fixed upstream ( see https://bugzilla.xfce.org/show_bug.cgi?id=5379 ) - it would be nice to see the fix in Ubuntu.
It appears that this bug is caused by bug #1013548 "session manager must be in idle state when requesting a shutdown" so I have marked that one as a dupe of this one.
The bug is now fixed upstream ( see https:/ /bugzilla. xfce.org/ show_bug. cgi?id= 5379 ) - it would be nice to see the fix in Ubuntu.