We have a need to drive multiple HDTV class displays from a single FirePro W600 display adapter.
When plugged into a series of HDTVs with miniDP->HDMI adapters only one audio channel appears to be present. When tested independently with only one HDMI cable/adapter/HDTV connected at a time, the setup works for each TV. What this suggests is that only one HDMI Audio channel is "plugged in" and available at a time. This cannot be correct, so what setting am I missing?
Right from AMD's website: "AMD FirePro™ W600 professional graphics is the most powerful solution available for configuring display walls featuring multiple displays – no other single-slot professional graphics card is capable of driving up to six displays (with independent audio streams), features the latest graphics memory technology for exceptional multimedia performance and only consumes 75W maximum power"
can someone please help?
For passive mDP to HDMI dongles the behavior you describe is expected. To support DDMA the GPU needs to output DisplayPort. Active mDP to HDMI dongles might work since they are seen by the GPU as DisplayPort connection.
Who makes the Active mDP to HDMI dongles? The list in AMD's own eyefinity list for mDP to HDMI (Active) is empty..
Could someone share an active mDP to HDMI adapter brand and manufacturer?
I cannot give you a recommendation for now. On our web-page we only list adapters that we tested and where we know that they are working well with our GPUs. So far we did not test any active mDP to HDMI.