When I have run that a dialog showed the message "No additional information collected" and back on the terminal "Package xorg-server not installed and no hook available, ignoring".
As for the hardware details, I have attached the output of "lshw -html". Anyhow it seems the problem disappeared, I am not seeing any artifacts anymore. Maybe some update after the installation fixed it. ** Attachment added: "marte.html" http://launchpadlibrarian.net/48055852/marte.html -- Text artifacts (squares over letters) https://bugs.launchpad.net/bugs/575785 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs