nV News Forums - View Single Post - Zotac ION (MCP79) HDMI audio works on LCD monitor but not on LCD TV

Mark Kendall · 07-18-11, 04:55 PM

Update:

I obtained old BIOS versions from Zotac but trying each of them didn't solve the lack of HDMI audio.

After noticing something in one of the log files about a missing pulse audio module. I installed pulseaudio-module-x11 and after doing this I have HDMI sound through pulse audio but not directly through alsa using hw:0,3 etc.

Then after starting pulse in verbose mode and capturing the log I discovered that pulse was using front:0 for the sound output, when I did an ALSA test using front:0 HDMI sound through the tv worked!

Now that I've got this far does anyone know if the hw:0,3 output not working for some screens is likely to count as an ALSA bug, NVIDIA driver issue, something else?

07-18-11, 04:55 PM	#5
Mark Kendall Registered User Join Date: May 2011 Posts: 3	Re: Zotac ION (MCP79) HDMI audio works on LCD monitor but not on LCD TV Update: I obtained old BIOS versions from Zotac but trying each of them didn't solve the lack of HDMI audio. After noticing something in one of the log files about a missing pulse audio module. I installed pulseaudio-module-x11 and after doing this I have HDMI sound through pulse audio but not directly through alsa using hw:0,3 etc. Then after starting pulse in verbose mode and capturing the log I discovered that pulse was using front:0 for the sound output, when I did an ALSA test using front:0 HDMI sound through the tv worked! Now that I've got this far does anyone know if the hw:0,3 output not working for some screens is likely to count as an ALSA bug, NVIDIA driver issue, something else?