[ubuntu_mate] Audio from 3.5mm jack after 2nd HDMI connected

[ubuntu_mate] Audio from 3.5mm jack after 2nd HDMI connected

My set-up is currently Raspberry Pi Model 4 connected through HDMI ports to a TV (HDMI-1) and a projector (HDMI-2). I have the 3.5mm audio jack connected to speakers.

When all is as described above I cannot get audio from the 3.5mm jack. I can get audio from each HDMI device without issue as both have internal speakers.

After trying different configurations, I have found that I get audio from the 3.5mm jack when HDMI-2 (projector) is disconnected and pi rebooted, so that only HDMI-1 is connected.

I have tried
sudo amixer cset numid=3 1
without success as I get this returned:

amixer: Cannot find the given element from control default

I was having these issues and some others relating to my display when using, Raspian (even tried forcing audio through 3.5mm using the raspi-config utility) so I switched from Raspian to Ubuntu-mate. I had the same audio issue in both operating systems. I am currently running Ubuntu Mate.

i have also tried –

sudo apt-get install –reinstall alsa-base pulseaudio

sudo alsa force-reload
I have tried testing speakers using ubuntu-mate’s graphical sound settings, hardware tab – does not work.
I used alsamixer to ensure that the headphones volume was turned up to full and not muted.

I have tried Google and I have not found a solution.
I am new to Linux.

Thanks for your help.


Previous External HD Sharing
Next No WiFi After Updates - Reinstall doesn't Fix (Ubuntu 18.04)

About author

You might also like

Ubuntu Dsicussions 0 Comments

Time Format in indicator applette complete metacity flashback

I like the old style desktop. However there is a problem with the “indicator applette complete” in that I cannot get the time format to change to 24 hour format

Ubuntu Dsicussions 0 Comments

[ubuntu] Wifi option is missing

I have recently installed Ubuntu 20.04.1 LTS, switched from windows 10. In windows 10 I have used wifi for a long time but after some windows update windows 10 was

Ubuntu Dsicussions 0 Comments

[ubuntu] Boot Repair Tool Help

Paste: http://paste.ubuntu.com/p/FrXfbwVPf4/ Hey guys, long story short I had a dual boot of Ubuntu and Windows 10 on an little bit of an old Laptop from 2015 which I was


No Comments Yet!

You can be first to comment this post!

Leave a Reply