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I had 3D accelleration working for Quake III (from Lokigames.com) on a mandrake 7.1, using XFree86 3.3.6, and Utah GLX, with the gart driver for agp on my Matrox G400. One of the reasons for upgrading to pinstripe was to get a nice XFree86 4.0.1, where no shenanigans would be necessary for 3D. WRONG. The X Server crashes whenever I try starting Quake III. wander over to the XFree86 site... The MGA kernel module doesn't work with (says the DRI/DRM doc.) 2.2.x. Argh! Build a 2.4.0-test7 kernel from kernel.org. according to instructions from the DRI doc. Same thing. crashes the X server horribly. Here are some choice bits from the /var/log/XFree86.X.log (==) MGA(0): Write-combining range (0xe2000000,0x1000000) (==) MGA(0): Default visual is PseudoColor (II) MGA(0): [drm] bpp: 8 depth: 8 (II) MGA(0): [drm] Direct Rendering only supported in 16 and 32 bpp modes (II) MGA(0): Using 25732 lines for offscreen memory. (II) MGA(0): direct rendering disabled The above is interesting because the screen was, in fact, in 16bpp mode... Here's another failure mode: (==) MGA(0): Write-combining range (0xe2000000,0x1000000) (==) MGA(0): Default visual is TrueColor (II) MGA(0): [drm] Sarea 2176+624: 2800 (EE) MGA(0): [drm] DRIScreenInit Failed (II) MGA(0): Using 5529 lines for offscreen memory. (**) MGA(0): DPMS enabled (II) MGA(0): direct rendering disabled (II) MGA(0): Using overlay video Pouf! BSOD (in my case, Black SOD...)
RHL 7 final tests OK for supporting Matrox G200 with DRI 3D acceleration in 16bit and 32bit modes in 1024x768 and lower with 8 megs of video ram, and 1280x1024 with 16megs of video ram. You do not need a replacement kernel and we do not support any other kernels than those we ship. If you recompile, you are on your own.