option-xorg, copy/paste and execute via terminal the indented below in order to gather xorg/X11/graphics output which may help in trouble shooting the issue you are having.
sudo inxi -U ; echo wait one.. ; sudo update-pciids ; ( date ; echo --option-xorg-- ; echo --on-live-session?-- ; inxi -c0 -MSGIsprxx ; echo --grub-kernel-options-start-- ; grep -Ei 'GRUB_CMDLINE_' /etc/default/grub ; echo --grub-kernel-options-end-- ; echo --cut-xrandr-start ; xrandr ; echo --cut-xrandr-end ; echo --dkms-status--start ; dkms status ; echo --dkms-status--end ; echo --cut-lsmod-start ; lsmod | grep -Ei 'vid|nvi|int|i9|fgl|amd|nouv|rad|vbox|ndi' | grep -Eiv 'snd' ; echo --cut-lsmod-end ; echo --cut-term.log-start ; grep -Ei 'g up|config|dkms|module|install|remov|err|fail' /var/log/apt/term.log | grep -Ei 'radeon|nvidia|nouveau|intel|fglrx|amd|vbox|Log started|Log ended' ; echo --cut-term.log-end ; echo --cut-dpkg-start-- ; dpkg -l | grep -Ei 'nvidia|fglrx' ; echo --cut-dpkg-end-- ; echo --cut-webinstall-start ; ls /usr/share/ati/ | grep -i fglrx ; echo --cut-webinstall-end ; echo --cut-Xorg.0.log-start ; grep -Ewi 'kernel|conf|WW|EE' /var/log/Xorg.0.log ; echo --cut-Xorg.0.log-end ; echo --cut-syslog-start ; grep -Ei 'fail|error|critical' /var/log/syslog ; echo --cut-syslog-end ; date ) > ~/trouble-shoot-history.txt | echo "Done, the log has been saved to ~/trouble-shoot-history.txt"
The "To-View/Share" instructions are [here] (https://github.com/two-dogs/the-kennel/blob/master/to-share.md).
[a cleaner view of what is going on above is shown here] (https://github.com/two-dogs/the-kennel/raw/master/option-xorg.md)