There are two links on the xorg bugzilla, one closed (https://bugs.freedesktop.org/show_bug.cgi?id=5774) and one still opened (https://bugs.freedesktop.org/show_bug.cgi?id=4353).
Concerning the closed one, the solution might be in the comment #11 (https://bugs.freedesktop.org/show_bug.cgi?id=5774#c11).
I am still reading the full log of the opened one...
There are two links on the xorg bugzilla, one closed (https:/ /bugs.freedeskt op.org/ show_bug. cgi?id= 5774) and one still opened (https:/ /bugs.freedeskt op.org/ show_bug. cgi?id= 4353).
Concerning the closed one, the solution might be in the comment #11 (https:/ /bugs.freedeskt op.org/ show_bug. cgi?id= 5774#c11).
I am still reading the full log of the opened one...