[Bug 32821] [mach64] DRI doesn't work on SGRAM with 4096Kb

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=32821

--- Comment #2 from Alex Deucher <agd5f at yahoo.com> 2011-01-04 09:14:30 PST ---
This is nothing to do with sgram.  You just don't have enough video memory to
enable the DRI on your board.  Due to driver limitations, the driver statically
allocates front, back, and depth buffers for 3D and each has to be the size of
your screen.  front/back/depth at 1280x800 @ 16bpp = 5.9 MB.  You only have 4
MB of vram.  Try 800x600, it will only require 2.8 MB for 3D.

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