https://bugs.winehq.org/show_bug.cgi?id=38875 --- Comment #8 from Lauri Kenttä <lauri.kentta(a)gmail.com> --- Created attachment 56452 --> https://bugs.winehq.org/attachment.cgi?id=56452 Sample program Here's a stripped-down version of the test program. In this one, you press numbers 1-6 to select different rendering functions. Look at the source and stdout for more information. There are a lot of asserts to catch any failures. This program shows that blitting from DDSCAPS_OFFSCREENPLAIN to the primary surface works fine. This bug report is either fixed, incomplete or invalid. There are other problems, not related to the title of this bug report: If a ddraw test is run first, SetPixelFormat in InitOpenGL fails, so it's not a surprise that it won't render anything. Setting depth buffer and stencil buffer to 0 bits (as they are not needed) fixes this problem, though. I suppose this is a known problem of the current ddraw implementation. If OpenGL is initialized first, ddraw doesn't draw anything, but I don't see any of the functions actually failing in that case. Switching ddraw->OpenGL->ddraw crashes Wine with this error: err:d3d:context_check_fbo_status FBO 0 is incomplete, driver bug? wine: Unhandled page fault on read access to 0x00000000 ... -- Do not reply to this email, post in Bugzilla using the above URL to reply. You are receiving this mail because: You are watching all bug changes.