Thanks for the bug report.
Can you please upload the contents of /home/kiavash/.xsession-errors, as well as /var/log/Xorg.0.log ? Does trying to log in under a new user work?
Thanks for the bug report.
Can you please upload the contents of /home/kiavash/ .xsession- errors, as well as /var/log/Xorg.0.log ? Does trying to log in under a new user work?