http://bugs.winehq.org/show_bug.cgi?id=27959
--- Comment #11 from Joel "iLag" Hammond ilagdoesntcheckthisemail@gmail.com 2011-08-13 18:03:22 CDT --- (In reply to comment #7)
@Joel "iLag" Hammond: can you confirm this behavior?
Sorry, I'm a single-monitor user, so none of that really applies. All I can confirm is a massive FPS drop when playing certain games normally. I can also confirm that Vice City doesn't appear to be having any problems, and Deus Ex is also fine. Of course, both of these games are older, so they either aren't doing anything that requires GL_ARB_map_buffer_range or are so light compared to today's games that the FPS drop is unnoticeable.