Well, I was unable to spend much time in Gnome to reproduce the effect or refute it. OTOH it wasn't reproduced since this ticket start on host 1 and became much less frequent on host 2, after I switched drivers on it nvidia->nouveau and back. Also a new laptop showed it, but also rather rarely.
I would second the guess it is KDE specific due to absense of other ideas. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1749150 Title: Spontaneous single window freezing To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1749150/+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