Getting sound from NVidia desktop video card to TV over HDMI

Bertman123 · 10-28-2014, 07:16 AM

I finally got pulseaudio working and using this below in my .asoundrc has sound playing from chromium again.

pcm.!default {
type hw
card LX3000
device 0
}

ctl.!default {
type hw
card LX3000
device 0
}

I don't have the default sound working on my laptop as of yet, but the main hurdle is over and I can watch videos on chromium!

Many thanks.

I'm going to do a little more research and see if I can get the sound working on my laptop. but that's not as important.

enetarch · 10-25-2016, 12:45 PM

I'm not sure where I found this URL, but decided to repost it here.

HDMI Audio on NVIDIA GPUs
Stephen Warren, for NVIDIA Linux Support <linux-bugs@nvidia.com>
version 8, 2014-03-04

ftp://download.nvidia.com/XFree86/gp...ysical_devices

In addition to running through this trouble shooting guide, I also realized that my 4k HDMI Monitor (TV)'s speaker settings were causing audio problems as well.

Check your sound settings.
- Turn off Surround Sound - Temporarily
- Turn off Audio Leveling - short test wav files may not be audible with this on.

E Net Arch

dugan · 02-16-2019, 04:44 PM

Quote:

Originally Posted by dugan

I wonder if this is the "hardware issue" that's causing my A/V sync woes:

HDMI's Lip Sync and audio-video synchronization for broadcast and home video

I've since replaced the video card, and the A/V sync over HDMI (using Pulseaudio) is now perfect.

So it does appear that the A/V lag was caused by a bad HDMI port on my previous video card.