Ubuntu not playing sound despite detecting sound devices
This article provides a solution for the issue where Ubuntu detects sound devices, such as speakers connected to the line-out interface, but no sound plays. This problem typically arises when a new user starts using Ubuntu daily.
Cause
The root cause of this issue is not immediately clear, but it may be related to improper audio settings or hardware compatibility issues.
Solution
- Check the volume level: Click on the speaker icon in the system tray and ensure the volume is not muted and is set to an appropriate level.
- Check the audio output device: Click on the speaker icon in the system tray, click on 'Settings', and ensure the correct audio output device is selected.
- Check the PulseAudio service: Open a terminal and run the following command to check the status of the PulseAudio service: ``` sudo systemctl status pulseaudio ``` If the service is inactive, start it using the following command: ``` sudo systemctl start pulseaudio ```
- Check the ALSA (Advanced Linux Sound Architecture) configuration: Open a terminal and run the following command to check the ALSA configuration: ``` sudo alsa-info.sh -V ``` If there are any errors or warnings, attempt to fix them by following the instructions provided.
- Update the system: Open a terminal and run the following commands to update the system: ``` sudo apt update sudo apt upgrade ```