Now that you mention it, that sounds like bug 1511278 which is probably related. Made progress on that last year with a proof of concept workaround. Essentially I think this is related to the fact that Xorg expects and requires single buffering (or at least back buffer preservation), but Mir supports neither of those yet.
Now that you mention it, that sounds like bug 1511278 which is probably related. Made progress on that last year with a proof of concept workaround. Essentially I think this is related to the fact that Xorg expects and requires single buffering (or at least back buffer preservation), but Mir supports neither of those yet.