I use Ubuntu 14.04 64 bits with NVidia propietary drivers (downloaded from Nvidia website). I have the same problem only when nautilus manages desktop. The workaround for me is "gsettings set org.gnome.desktop.background show-desktop-icons false".
-- 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/1314587 Title: Windows slow/stall/freeze when minimizing/restoring/etc in Unity 7 (14.04 and 14.10) To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/1314587/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp

