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How to set HDMI audio volume through alsamixer? - Jetson ...
https://forums.developer.nvidia.com/t/how-to-set-hdmi-audio-volume-through-alsamixer/107133
The HDA controller (used for audio playback through the HDMI interface) does not have any internal volume control and hence there is not control you can set with amixer. You can control the volume from the command line using pulseaudio. For example, first find the name of the HDMI soundcard …
No sound over HDMI with ALSA
https://www.linuxquestions.org/questions/debian-26/no-sound-over-hdmi-with-alsa-4175509769/
Make sure that your audio isn't muted under your normal user. In terminal, open up alsamixer, hit F6 to select your HDMI device, and make sure nothing is "MM" (hit M to change). You can use aplay to see which device will output your audio over HDMI
vc4-hdmi device: "no controls" in alsamixer until sound is ...
https://github.com/raspberrypi/linux/issues/3953
I have been using the fantastic vc4-hdmi audio device for months now, since it came to 5.4/5.9 series of Pi kernels, in Rasberry Pi OS. However, I noticed that ALSAMIXER claims that "there are no controls for this device" until I play a sound through ALSA. Any program does: even simply running speakertest is enough.
Fixed: No Sound in Ubuntu as HDMI Enabled By Default
https://itsfoss.com/fix-sound-ubuntu-1404/
As you can see, HDMI is set by default in alsamixer. Which means by default HDMI output has been selected instead of the built in speakers. This is why I get no sound from the built in speakers in my system. Use the following command to check the state of alsamixer: alsamixer. If alsamixer is set by default to HDMI or some other audio output ...
No HDMI Audio despite showing up unmuted in alsamixer
https://www.linuxquestions.org/questions/linux-hardware-18/no-hdmi-audio-despite-showing-up-unmuted-in-alsamixer-725879/
HDMI Audio not working with ASUS M3N78-EM: Spectre5: Linux - Software: 6: 05-25-2009 10:19 PM: LXer: Using HDMI Audio/Video On Linux: LXer: Syndicated Linux News: 0: 12-10-2008 04:00 PM: LXer: Using HDMI Audio/Video On Linux: LXer: Syndicated Linux News: 0: 12-10-2008 11:40 AM: ATI Technologies Inc SB450 HDA Audio alsamixer problem: jelgavchik ...
sound - HDMI audio on default alsa device in xubuntu - …
https://askubuntu.com/questions/409860/hdmi-audio-on-default-alsa-device-in-xubuntu
My new monitor (Asus MX279) have 2 speakers and audio input from HDMI. In xubuntu 12.10 it doesn't work by default. I identified the correct device with aplay -l and sound works great with. speaker-test -c wav -D plughw:1,7. and. aplay -D plughw:1,7 myTest.wav. Now, how can i set this device (in this case card 1, device 7) as default audio device?
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