http://bugs.winehq.org/show_bug.cgi?id=27959
--- Comment #13 from Stefan Dösinger stefandoesinger@gmx.at 2011-08-14 13:08:29 CDT --- Hi,
Reporting a bug to Nvidia that the native Linux Unigine Heaven demo slows down would be a start. You can add to this bug that this affects other games too. With a game that doesn't use Wine we can at least avoid a "Hey, this may be a Wine bug" reply.
No, we won't put a hack in to disable dynamic buffers for this case. This may be an inconvenience for users that use Xinerama, but it would only take away pressure to get the actual bug fixed and cause pain for further development at some point. We usually don't have any hacks like that. We have a few hacks for cases that are easy to isolate, e.g. a driver lying about it's capabilities and falling back to software rendering.
It's pretty hard to catch a bug like this in a stand-alone test case, so I'd prefer to give a bug report based on Unigine Heaven a try first.