https://bugs.winehq.org/show_bug.cgi?id=43748
--- Comment #17 from Tod Jackson tod.jackson@gmail.com --- I should clarify, with Mesa specifically, Steam doesn't show 2x.
https://cgit.freedesktop.org/mesa/mesa/tree/src/mesa/drivers/dri/i965/intel_... The Intel HD 4000 is Ivybridge (generation 3), but I don't know what genX_modes that actually corresponds to above. It seems clear that Mesa doesn't support 2x for this hardware though.
"A speciality of the Ivy Bridge GPUs is that 4x MSAA is supported in hardware now. However, 2x is only supported through software. The algorithm to support 2x is going through the 4x pipeline with a software algorithm, so performance is similar to 4x MSAA." https://www.notebookcheck.net/Intel-HD-Graphics-4000.69168.0.html
Whatever you guys decide to do, I indicated the MESA_EXTENSION_MAX_YEAR=2010 workaround on the AppDB and have never personally seen this issue anywhere else under Wine.