[wingrunr21]

cat /proc/asound/card0/eld#0.0:

Code:

monitor_present        1
eld_valid        0

I only have my Sharp TV plugged into the HDMI

There's your issue right there. fglrx does not appear to be forwarding eld information (eld_valid is false).

There is one thing you could try. I believe the 6550 is actually a renumbered Evergreen part instead of a Northern Islands GPU. This means the radeon OSS driver may be able to support HDMI audio on this card. The OSS driver is probably more reliable.