According to this https://devtalk.nvidia.com/default/topic/766018/unix- graphics-announcements-and-news/linux-solaris-and-freebsd- driver-343-13-beta-/
Nvidia 343.13 beta may be a solution. "Fixed a "black window" bug in Ubuntu 14.04 when using the Xinerama and Composite extensions." -- 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