https://bugs.freedesktop.org/show_bug.cgi?id=89374
--- Comment #6 from sunweb@hotmail.ru --- (In reply to Michel Dänzer from comment #5)
(In reply to sunweb from comment #4)
No difference.
Did you verify in /var/log/Xorg.0.log that glamor was enabled?
Yes, i've checked it.