I found another computer with the same model type. And everything works fine. Ubuntu 15.10 and Xenial
I think it is hardware problem, no Ubuntu. -- 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/1511339 Title: Corrupted desktop picture on Images and some fonts To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1511339/+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