I'd like to run XF86 in 1152x864/8bpp on a PS/2 with Mach8 graphics.
ATI introduced two new dot clocks (92.84 & 110.85MHz) with Bios v1.4,
the latter is used by the Win drivers 1280x1024/4bpp IL mode, hence
overclocking the palette chip by 30.85MHz. 1152x864@92MHz dot clock
is comparatively moderate..
While adjusting 3.3.x xfree86/common/Mach8.c's define is straightforward,
I suffer from xfree86/hw/mach8/mach8.c's width restrictions. Simply
raising 1024 pixel value to 1280 allows to start server with 1152x864
modeline. However, the right margin exceeding 1024 pixels is distorted
(lines 768 through 864 are drawn quite well). It seems that new width
limit conflicts with code handling virtual screens. Any sugs?
Torsten

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