X.Org X Server 1.9.2.901 (1.9.3 RC 1) I don't know kubuntu, but open your file browser with root previleges and browse in /etc/X11/ search the file xorg.conf and rename it as xorg.conf.old, close and reboot
X.Org X Server 1.9.2.901 (1.9.3 RC 1)
I don't know kubuntu, but open your file browser with root previleges and browse in /etc/X11/ search the file xorg.conf and rename it as xorg.conf.old, close and reboot