[coreboot] AMD RS690 TMDS

Karl-Heinz Nirschl kh.nirschl at googlemail.com
Mon Aug 17 20:33:25 CEST 2009


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

best regards


2009/8/17 Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006 at gmx.net>:
> 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
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