Help - Not getting sound from the 3.5mm jack on a Anthias Install RP3b.. its obvi a basic mistake !!

done this Analog (3.5mm Jack) not working on fresh install
and this No sound from 3.5 mm output

but this is all about BalenaSound

was thinking that the “sound” issue was a common thing, obvi not.

I’ve tried to get in the host to take a look at the config.txt but can only cat the last few lines not the total. on taking a look at what I could see it seems the config I set in the devices settings doesn’t seem to take effect.

Im obviously not setting it correctly.

Any help or pointers would be appreciated.


I can help you troubleshoot the 3.5mm jack issue on your Anthias Install RP3b. Here are some steps based on the information you provided and common causes:

1. Check Hardware:

  • Basic Checks: Ensure the cable is firmly plugged into both the Raspberry Pi and your speakers/headphones. Try a different cable to rule out cable issues. Make sure your speakers or headphones are powered on and functioning correctly.
  • Visual Inspection: Look for any physical damage to the 3.5mm jack on the Raspberry Pi or the cable connector.

2. Software Configuration:

  • Verify Audio Settings: Access the Raspberry Pi configuration using sudo raspi-config (assuming you have root access). Navigate to “System Options” → “Audio” and ensure the correct audio output is selected (likely “Analog” for the 3.5mm jack).
  • Check config.txt (if possible): While you mentioned limited access, if you can view or edit the complete config.txt file, look for lines related to audio output. These might include dtparam=audio=on or dtoverlay=i2s-wm8804 . Uncomment these lines or adjust them as needed based on your Raspberry Pi model and sound card. However, proceed with caution and research specific settings for your Anthias Install RP3b configuration.

3. Additional Troubleshooting:

  • Reboot: Sometimes a simple reboot can resolve configuration issues. Run sudo reboot to restart your Raspberry Pi.
  • Force Audio Output (if applicable): Some advanced users might suggest forcing audio output to the 3.5mm jack using commands like amixer sset "Auto Mute" unmute or amixer sset "Headphone" on . However, this depends on your specific system and might require more research to ensure compatibility with your Anthias Install RP3b.
  • Consult Anthias Documentation: If available, refer to the Anthias Install RP3b documentation for any specific audio configuration instructions or known limitations.

Things to Avoid:

  • Modifying Unknown Settings: Avoid modifying settings in config.txt or other configuration files unless you understand their purpose and potential consequences. This could lead to further issues.

Additional Tips:

  • Community Support: Consider searching online forums or communities dedicated to Raspberry Pi and/or Anthias Install for solutions specific to your setup.
  • Professional Help: If you’re uncomfortable with the troubleshooting steps or the problem persists, consider seeking assistance from someone with Raspberry Pi experience.

By following these steps and considering potential causes, you should be able to diagnose and fix the issue with the 3.5mm jack on your Anthias Install RP3b. Remember to prioritize hardware checks and verify software configuration options cautiously before making advanced modifications.