I found a solution browsing the net :
In compizconfig-settings-manager (ccsm)
"General > General Option > doo not redirect fullscreen windows" <=
uncheck it.
Shouldn't it be the default ?
** Changed in: compiz (Ubuntu)
Status: New => Fix Committed
--
Flash player can't play fullscreen videos
https://bugs.launchpad.net/bugs/355020
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs