[Bug 27158] Mouse Input in Source Engine Games is jittery

http://bugs.winehq.org/show_bug.cgi?id=27158

--- Comment #7 from GyB  2011-05-15 04:57:24 CDT ---
(In reply to comment #6)
> Does the 'lagging' feel like a sudden massive loss in FPS? If so, I've seen
> this issue as far back as 1.3.10 or so. It appears totally at random and I
> think it's unrelated to this.

No, it is due to
http://source.winehq.org/git/wine.git/commit/a59c7cc8596b658d3c0854a737528cf...

This is the commit which introduced the strange mouse jumping issue. It happens
occasionally but frequently enough to annoy you while playing.
The other two commits in comment #5 made the problem more serious: the jittery
mouse movement became persistent.