[Xorg-driver-geode] cim_vg modification needed

[Mitchell, Matt]

Hello,

I have attempting to port a system my company develops to Fedora for quite some time and have always been stuck on getting the geode video driver working properly (the VESA driver has always worked for me though).  So recently we updated the WinXP graphics driver on this same system and it produced the same problem that xorg-amd*/xorg-geode* have always given me where the colors were just not displayed properly and has a fuzzy appearance on the panel.  So after a few months of debugging the XP driver, AMD discovered that our system doesn't like the default value written to the PAD_SELECT_REGISTER when the driver is setting the panel timings.  Their solution was to read the values first and OR them with the default values.  So I made this change to 2.10.0 and it worked like a charm (with a custom xorg.conf).

I have attached the modified cim_vg.c file that I modified in 2.10.0 which works on my system, but I'm wondering how safe this change is and also if this is could be a sign of other problems.  We are using General Soft. BIOS on our LX800/CS5535.  I couldn't find much information on the pad select register, so any thoughts or suggestions would be greatly appreciated.

Thanks,

Matt Mitchell
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