Gigabyte MA78GM-S2H sound over HDMI - ?

[gsmd]

(**) RADEONHD(0): Option "Audio" "on"
(**) RADEONHD(0): Option "HDMI" "all"
(**) RADEONHD(0): Selected ShadowFB.
(II) RADEONHD(0): Unknown card detected: 0x9610:0x1458:0xD000.
        If - and only if - your card does not work or does not work optimally
        please contact [email protected] to help rectify this.
        Use the subject: 0x9610:0x1458:0xD000: <name of board>
        and *please* describe the problems you are seeing
        in your message.
(--) RADEONHD(0): Detected an RS780 on an unidentified card
(II) RADEONHD(0): Mapped IO @ 0xfdee0000 to 0x7fa48883d000 (size 0x00010000)
(II) RADEONHD(0): Getting BIOS copy from legacy VBIOS location
(II) RADEONHD(0): ATOM BIOS Rom:
        SubsystemVendorID: 0x1002 SubsystemID: 0x1002
        IOBaseAddress: 0xee00
        Filename: MA78M_S2H_HD
        BIOS Bootup Message: ^M
B27721 RS780 DDR2 200e/500m                                                 ^M

Is that Unknown card detected thing allright? The id has been reported back in May.
Anyways, I'm getting pretty the same thing as described here.
I'm pretty sure the problem is not in mobo + tv combo as it's proven to work flawlessly under WinXP.

Plz help debugging as I'm out of ideas. Working configs r welcome. TIA.

[forum1793]

I had to upgrade to kernel 2.6.25 to get the graphics hardware to be recognized with lspci.

Sound over hdmi for me and for this mboard stopped working with kernel 2.6.26 and 2.6.27. This was true for both fglrx and open source driver (radeonhd).

Sound over hdmi worked with fglrx. It started working with radeonhd back in Nov with code from deathsimple.

Back then my xorg log also showed unknown. See here.

The changes to open source driver for hdmi for this mbaord should be part of main git now. Depending on your distribution you might try

git clone git://anongit.freedesktop.org/git/xorg/driver/xf86-video-radeonhd

[gsmd]

Thanks for your reply, already got this working under 2.6.27 (fglrx).
The problem was that I haven't unmuted the thing with alsamixer -c1.
This thread helped a lot.