[Open-graphics] PCI Card which can act as Secondary VGA Adapter

[Rupesh Kumar]

Hi All,

I got ATI Radeon Card which is working on PC as Secondary VGA display
adapter.
When i try this card on my ARM system it is failing to detect the videoram
and failing with the following error.
radeonfb (0000:00:02.0): Found 0k of SDRAM 64 bits wide videoram
adeonfb (0000:00:02.0): cannot map FB
radeonfb: probe of 0000:00:02.0 failed with error -5

After some time on google i have found that this error can be solved by
running vbetool (which runs the video BIOS).
This is completely killing my idea of running it on ARM Board.

My goal is to make a VGA Card work on ARM System which doesnt support legacy
VGA Address range.
Can anyone  please clarify me whether this is feasible or not.
Anybody have ever tried this kind of setup.

Please help me.

Regards
Rupesh






On 10/26/07, Rupesh Kumar <a.rupesh.k at gmail.com> wrote:
>
> Thanks for your prompt reply Paul
>
> > My goal is to make this card work on a ARM System. My System  doesn't
> > > support VGA Legacy address decoding. So i am expecting that if a card
> > works
> > > as secondary VGA Adapter then it can be portable to ARM System. Am i
> > > correct ??
> >
> > Probably, but there may be other issues.
>
>
> What kind of issues ? Is it VGA BIOS,or driver issues.
>
> I'm surprised the your Cirrus Logic card is failing, they're one of the
> > better
> > documented card series. Maybe the code has just bitrotted.
>
>
> I checked this card in  Windows . It works if it is taken as primary
> display.
> if it is taken as secondary then the driver initialization is failing.
>
> May be this card is  old and may not work as secondary VGA. Just kidding
> !!!!! (Showing VGA BIOS 2005).
>
> I have checked linux cirrusfb driver and it is directly accessing the
> Legacy VGA Range. (drivers/video/cirrusfb.c)
> This implies to me that this card can never be supported as Secondary VGA
> with this linux driver.(I dont know how  X Server act on it)
>
> Please correct me.
>
> Regards
> Rupesh
>
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