Thank you for reporting this bug in Ubuntu, however there is insufficient information to debug it. Please attach your /etc/X11/xorg.conf, /var/log/Xorg.0.log, and the output from lspci -vv.
Thank you for reporting this bug in Ubuntu, however there is insufficient information to debug it. Please attach your /etc/X11/xorg.conf, /var/log/ Xorg.0. log, and the output from lspci -vv.