simple solution is this : set variable minimize-fast-duration and minimize-slow-duration to both to 1. then its should gone .
but this is is simple hack . not true fix. for reproducing this bug I notice when you minimize a window "IF" focus remain unchanged between animation . then the window become dark . try this . set duration for both fast and slow to big number . try minimize/unminimize when animation not finished . then you should see a dark window . ( I suggest gnome-monitor for trying this ) . when you set animation duration to 1 or 0 then animation is so fast user cannot unminimze during animation. I hope this help. and I am pretty disappoint by nvidia support. geforce 610M , ubuntu 14.10 -- 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/1072206 Title: [nvidia] Window content is black or transparent To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/1072206/+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