Thanks for reporting this issue in Ubuntu. Please attach your /var/log/Xorg.0.log[.old], /etc/X11/xorg.conf, and the output from lspci -vvnn so we can determine what's going wrong.
Also, please see https://wiki.ubuntu.com/X/Debugging for more info on debugging X problems, and other info you could include to help triage this bug.
Thanks for reporting this issue in Ubuntu. Please attach your /var/log/ Xorg.0. log[.old] , /etc/X11/xorg.conf, and the output from lspci -vvnn so we can determine what's going wrong.
Also, please see https:/ /wiki.ubuntu. com/X/Debugging for more info on debugging X problems, and other info you could include to help triage this bug.