Running Archlinux with up-to-date packages (git mesa and xf86-video-ati), I
have been experiencing stutters (frame drops *including* the cursor) when
running Diablo 3 via wine in a wayland gnome session.  If I run the game via
classic xorg session, I have no issues.  I verified that using modesetting in
xorg worked fine as well.

Most notable is the fact that I do *not* have these issues on my
nouveau-running laptop with the same set of software.

I am running wine-staging with Gallium nine patches.  I have absolutely no idea
how to debug the issue, what information may help, or where exactly the bug
should be reported, so ideas are welcome!