Post by Wartybliggens on Jan 28, 2018 14:48:47 GMT -5
This is an FYI for anybody who is piping multichannel audio over HDMI from a graphics card:
An HDMI cable connects the graphics card on my Windows computer to my UMC-200 in the next room. This allows me to play multichannel files straight, without encoding/compression (and movies of course). BUT... with the Fall Creators Update the audio stopped working (as did the printer and my other audio card). Much time-wasting ensued. I had to strip drivers and reinstall the latest etc., but the audio did not come back. Eventually I found an answer from some random guy on the interwebs who deserves a beer:
The latest NVIDIA drivers assume the output color depth should be 12bpc. This apparently, um, overwhelms (?) an HDMI 1.4 cable if you are not set up for HDMI 2... I would be interested to know exactly what was going on, but in any case, changing it to 8bpc fixes the problem and the audio works again (getting the settings to stick took a few tries by the way).
An HDMI cable connects the graphics card on my Windows computer to my UMC-200 in the next room. This allows me to play multichannel files straight, without encoding/compression (and movies of course). BUT... with the Fall Creators Update the audio stopped working (as did the printer and my other audio card). Much time-wasting ensued. I had to strip drivers and reinstall the latest etc., but the audio did not come back. Eventually I found an answer from some random guy on the interwebs who deserves a beer:
The latest NVIDIA drivers assume the output color depth should be 12bpc. This apparently, um, overwhelms (?) an HDMI 1.4 cable if you are not set up for HDMI 2... I would be interested to know exactly what was going on, but in any case, changing it to 8bpc fixes the problem and the audio works again (getting the settings to stick took a few tries by the way).
