http://bugs.winehq.org/show_bug.cgi?id=58515
--- Comment #18 from Rémi Bernon rbernon@codeweavers.com --- Thanks, the problem is obviously that for some reason your system lacks the XComposite extension and the code was falling back to using a Pixmap-based workaround instead. No wonder that removing the Pixmap-based workaround broke it for you then.
It would be interesting to know why the XComposite extension is missing, I believe it's widely available these days.
Then regarding the fix, I don't think the Pixmap-based workaround was working very well, and I'm working on some other approach which should hopefully solve it in a better way and would also remove the need to have XComposite. It's still going to take some time though.