http://bugs.winehq.org/show_bug.cgi?id=3319
------- Additional Comments From the3dfxdude@gmail.com 2007-07-08 16:10 ------- One, are you running in 15bpp mode? And, two, why not call GetDeviceCaps directly? After all, that is what the original report is talking about, right?
Internally to winex11, it just gives what "screen_depth" is, which is read directly from X, and it should be 15 when you are running 15bpp is my guess. I no longer use a video device that supports 15bpp, so I can't test.