First of all thanks for your answer Mr. Christopher M. Penalver It communicates that the problem persists even after changing Nvidia Driver with Xorg
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1521725 Title: [Toshiba Satellite A100-317] icona chiudi sessione non spegne desktop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1521725/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp