I've had problems with window spread before, too, but only on a laptop with Nvidia graphics. On another one with Intel graphics, it works flawlessly.
Anyways, after upgrading to vivid, I tried to enable window spread using unity-tweak-tool again, and I got that freeze plus (after a while) crash again. But this time, it was so bad that I could not even log in any more. Afer entering my password, and after a second or so, I was always presented with a completely white (or light gray) screen, and after a mouse click, there was the login screen again. A reboot did not help, either. So after removing some config files in my home directory also did not help, I removed all nvidia-* packages. Now I could log in again, and finally I had a chance to switch window spread off again! (By the way, it still crashes.) I also got many apport crash popups after being able to login again (Xorg, compiz, apport). I guess I was hit by multiple bugs at once. Do you need any additional information? -- You received this bug notification because you are a member of compiz packagers, which is subscribed to compiz in Ubuntu. https://bugs.launchpad.net/bugs/1295909 Title: Unity spread trigger ruins windows and freezes desktop To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/1295909/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~compiz Post to : compiz@lists.launchpad.net Unsubscribe : https://launchpad.net/~compiz More help : https://help.launchpad.net/ListHelp