Here are some images that better describe the problem... I also updated compiz and unity today, but that didn't solve the problem
$ apt-cache policy compiz compiz: Installed: 1:0.9.7.8-0ubuntu1 Candidate: 1:0.9.7.8-0ubuntu1 $ apt-cache policy unity unity: Installed: 5.12-0ubuntu1 Candidate: 5.12-0ubuntu1 ** Attachment added: "Here is the blur plugin on with alpha blur while the unity plugin is enabled" https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/991028/+attachment/3136366/+files/4xbilinear_plus_unity.png -- 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/991028 Title: enable compiz alpha blur makes all windows invisible To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/991028/+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