Re: Re: [Dri-devel] Rage128 and Radeon patches

[Benjamin Herrenschmidt <benh@kernel.crashing.org>]

> Putting the EDID data into the RAM copy will never
> work the case where there are multiple cards since
> there is only one copy of the ROM in low RAM.

Yup, but at least it works for single cards, and that
helps a lot of users until radeonfb can do better

> Personally I'd just like to ignore the boot VROM and
> do everything in the Radeon driver code. But ATI won't
> give out detailed info on how to read EDID or reset
> the card with C code from the driver. So instead we
> end up with the idiotic x86 emulator and doing INT10's
> in simulated real mode.
> 
> Maybe someone with more leverage can coax this info
> out of them.....

Getting the full POST code is probably a lost cause. However,
if you look at the current XFree CVS driver, you'll see rather
complete code to get the EDID via DDC/i2c on all connectors.

Ben.


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