I just don't know what happened, but the bug is gone from my computer. I had stopped to use compiz (and unity) for a while, because of it. So, it's almost by chance that I logged into a unity session today. And the bug was gone !
I cannot tell which update did the trick, but one must have done it, I'd say in the last fortnight. -- 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/729979 Title: [nvidia] Windows appear blank white To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/729979/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~compiz Post to : [email protected] Unsubscribe : https://launchpad.net/~compiz More help : https://help.launchpad.net/ListHelp
