https://bugs.freedesktop.org/show_bug.cgi?id=107940
--- Comment #5 from Mowley yachtsoma@hotmail.com --- (In reply to Augusto Fraga Giachero from comment #4)
I've found the commit that introduces this bug: 7aa1a511336dd7cb26dafef81d76edd6978a6cdf
I'm guessing that my XOrg log file would now be superfluous?