Bug#479986: xserver-xorg-video-ati: Same colors problem with a Radeon 9600 Mac&PC
On Fri, Oct 17, 2008 at 4:31 AM, Jean-Pierre <chombier@free.fr> wrote:
> Hi Alex,
>
> Le 16 oct. 08 à 20:15, Alex Deucher a écrit :
>
>>
>> According to your log this card has a PC bios.
>
> Right, this card is advertised as Radeon 9600 Mac & PC Edition, it is
> supposed to have both firmware.
>
>> Does the mac firmware
>> light up the card during boot (ie.e, does the firmware bootup sequence
>> show up on the screen)? If not, the chip is probably not initialized
>> properly.
>
> Yes it does, it has a built-in ndrv for MacOS.
Macos can drive it, but is the firmware able to drive it? I.E., does
the screen light up before macos boots?
>
> But the card shows identical problems in MacOSX if I remove the
> extension /System/Library/Extensions/AppleNDRV/ATI ROM Xtender.
> This 1.4MB file contains 16 code fragments for different ATI cards,
> each installing a more recent ndrv in the system.
> I could extract the single fragment related to my 9600 card
> (ATY,AlteraC), but this is still a 110 KBytes powerpc code...
>From the driver's perspective, the x86 bios is more useful since we
can use the information in it. We don't know anything about the ppc
firmware. Your best bet is probably to dump the contents of the
display registers when the screen is working properly and compare them
to the contents of those registers when running X.
Alex
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