[mythtv-users] HDMI audio change

Preston Crow pc-mythtv13 at crowcastle.net
Wed Mar 7 20:38:02 UTC 2018

On 03/07/18 15:28, Jay Harbeston (ISeePeople) wrote:
>>> GeForce GT 710 with GK 708 audio subsystem, video driver 390.25,
>>> 4.15.4-200.fc26.x86_64
>>> dmesg | grep -i nvidia shows HDMI/DP, pcm=3 and 7, as cardd0/inputs 7 and 8
>>> dmesg | grep -i hda shows a vga switcheroo audio client...
>>> HDMI stereo works but defaults to HDMI2 mode and fails on start of playback
>>> of some files.  Usually recovers on setting to plain HDMI
>> Has anyone had any success on this problem. I still have no audio via
>> HDMI and I do not really know where to go with the troubleshooting.
> I was never able to solve this problem when it happened to me.
> When I was using my Zotac with NVIDIA ION and it happened, I had to reload the OS on the front end. There is something goofy with NVIDIA drivers in my opinion.
> I stopped using the Zotac as it bit me a couple of times and I switched to using an AMD/ATI processor using the open source amdgpu driver using VDPAU within mythtv.
I'm running on an Ion motherboard, and I just recently switched to HDMI 
audio, and have had no problems with it yet.  I'm running with the 
Nouveau drivers, which are working great for me.  I was very frustrated 
with it not working initially until I realized I had to unmute the 
output.  My only issue now is that I can't do H.265 high-res video at 
full speed, but I have very few of those files.

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