http://bugs.winehq.org/show_bug.cgi?id=10845
--- Comment #4 from Jonas Meyer quitte@gmail.com 2008-05-03 12:28:27 --- looking at the strace output lines similar to this seemed related to me: ioctl(15, FIONREAD, [0]) = 0 so I tried to look for ioctls with -e ioctl the value of that changes on every movement of the mouse and also on every click in the wine desktop. hth