Fake Video Bios. How?

Fake Video Bios. How?

[Guido Landra]

Hi all,

I want use a VTBook card (www.villagetronic.com) with XFree86 4.3.0.
This card is based on Trident XP2 graphics chip.

Note that:
- this graphics chip is currently unsupported by XFree86. I use the
"vesa" driver;
- graphics card is based on Cardbus (32bit PCMCIA);
- card does not include video BIOS onboard. Bios must be loaded after
hotplug event.
- I have got the binary image of BIOS (VBE 2.0 compliant)

I tried some XF86Config Options such as:
	Option "BiosLocation" "address"
Set the location of the BIOS for the Int10 module. One may select a BIOS
of another card for posting or the legacy V_BIOS range located at
0xc0000 or an alternative address (BUS_ISA). This is only useful under
very special circumstances and should be used with extreme care.
	Option "BiosBase" "address"
but they are not the solution.

I tried to map /dev/mem and put a copy of video BIOS in V_BIOS (0xC0000) 
before running X, but this way was not successful.
How soft boot secondary cards if they have not a video BIOS?

Do you know some utility to load bios in a way ready to be used by XFree86?
Any idea?

Thanks in advance,
Guido





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