Re: [coreboot] AMD RS690 TMDS

[Daniel Toussaint]

Hi,

I am using the open source drivers , radeon and radeonhd. When I try it on a
similar board with AMI bios , xrandr can switch on the HDMI port without any
problems - with radeon and radeonhd. I guess I could give Catalyst a try to
see if it makes any difference(maybe it does magic with the vga bios) I
think however, that the problem lies in the fact that some config needs to
be done in PCIE-GFX , so that one of the ports gets configured as TMDS.
Right now, I am trying to get that to work - so far no results yet ....
Another interesting fact is that I am working with this board that does not
have another BIOS except for coreboot .... so I have nothing to compare
register values with.

Greetings,

On Wed, Aug 12, 2009 at 12:08 AM, Dan Lykowski wrote:
> Daniel,
>  I'm sorry I don't know the answer to your issue.. But I have a question?
> Are you using the open source driver or Catalyst? Have you tried Catalyst
> and does it run?
>
> Thanks
> Dan Lykowski
>
> *From:* Daniel Toussaint 
> *To:* [e-mail]
> *Sent:* Mond,ay, August 10, 2009 7:57:21 PM
> *Subject:* [coreboot] AMD RS690 TMDS
>
> Dear All,
>
> I am working on supporting yet another AMD 690E based board. We have
> everything working fine, except for the HDMI output. I can't seem to switch
> to an HDMI or DVI monitor with Xrandr.
> The RS690 Register programming requirements , page 65 (PCIE
> inititialization for TMDS) starts explaining the steps to get TMDS working -
> as far as I can see they are not implemented yet in southbridge/amd/rs690 ?
> Implemening those steps would bring up HDMI or are there other things that
> need to be taken care of ? The VBIOS binary is given to me by AMD and has
> HDMI support, so they say.
> The ASIC revisision of the chip is A12. Any comments / idea's are more than
> welcome.
>
> Greetings,
>
> Daniel Toussaint

AMD RS690 TMDS

[Carl-Daniel Hailfinger]

Hi Daniel,

On 11.08.2009 18:32, Daniel Toussaint wrote:
> I am using the open source drivers , radeon and radeonhd. When I try it on a
> similar board with AMI bios , xrandr can switch on the HDMI port without any
> problems - with radeon and radeonhd. I guess I could give Catalyst a try to
> see if it makes any difference(maybe it does magic with the vga bios) I
> think however, that the problem lies in the fact that some config needs to
> be done in PCIE-GFX , so that one of the ports gets configured as TMDS.
> Right now, I am trying to get that to work - so far no results yet ....
> Another interesting fact is that I am working with this board that does not
> have another BIOS except for coreboot .... so I have nothing to compare
> register values with.

I never tested HDMI on my board and I know that most boards need special
PCIe setup to get HDMI working. So unless this is implemented already,
you probably need to code it up yourself.
The issue should be independent of the video driver you're using.

Maybe someone who has a board with working HDMI under the proprietary
BIOS can give you the register dumps you need.

Regards,
Carl-Daniel

AMD RS690 TMDS

[Karl-Heinz Nirschl]

hi,

i have a m2a-vm hdmi and could provide dumps if needed. just tell me
exactly what you need.

best regards

khn

2009/8/17 Carl-Daniel Hailfinger :
> Hi Daniel,
>
> On 11.08.2009 18:32, Daniel Toussaint wrote:
> > I am using the open source drivers , radeon and radeonhd. When I try it on a
> > similar board with AMI bios , xrandr can switch on the HDMI port without any
> > problems - with radeon and radeonhd. I guess I could give Catalyst a try to
> > see if it makes any difference(maybe it does magic with the vga bios) I
> > think however, that the problem lies in the fact that some config needs to
> > be done in PCIE-GFX , so that one of the ports gets configured as TMDS.
> > Right now, I am trying to get that to work - so far no results yet ....
> > Another interesting fact is that I am working with this board that does not
> > have another BIOS except for coreboot .... so I have nothing to compare
> > register values with.
>
> I never tested HDMI on my board and I know that most boards need special
> PCIe setup to get HDMI working. So unless this is implemented already,
> you probably need to code it up yourself.
> The issue should be independent of the video driver you're using.
>
> Maybe someone who has a board with working HDMI under the proprietary
> BIOS can give you the register dumps you need.
>
> Regards,
> Carl-Daniel