No Sound After Kernel Update on Ubuntu 24.04 LTS

📖 ~1 min read

Table of contents

1. Symptom & Impact
2. Environment & Reproduction
3. Root Cause Analysis
4. Quick Triage
5. Step-by-Step Diagnosis
6. Solution – Primary Fix
7. Solution – Alternative Approaches
8. Verification & Acceptance Criteria
9. Rollback Plan
10. Prevention & Hardening
11. Related Errors & Cross-Refs
12. References & Further Reading

Symptom & Impact

Audio output devices disappear and no playback is possible.

Environment & Reproduction

Typically occurs immediately after reboot into a new kernel.

Root Cause Analysis

Kernel module regression or PipeWire service mismatch breaks card detection.

Quick Triage

Run aplay -l and systemctl –user status pipewire wireplumber.

Step-by-Step Diagnosis

Inspect kernel logs with journalctl -k -b | grep -i -E ‘snd|hda|sof|audio’.

Solution – Primary Fix

Restart user audio stack with systemctl –user restart pipewire wireplumber; if needed boot previous kernel from GRUB Advanced options and install updates via sudo apt update && sudo apt upgrade.

Solution – Alternative Approaches

Reset user audio config by moving ~/.config/pipewire and re-logging in.

Verification & Acceptance Criteria

aplay -l lists devices and test sound plays normally.

Rollback Plan

Temporarily pin known-good kernel until upstream fix lands.

Prevention & Hardening

Keep fallback kernel entries and avoid removing all old kernels.

Related Errors & Cross-Refs

Related: dummy output only and missing HDMI profile.

Related tutorial: View the step-by-step tutorial for Ubuntu 24.04 LTS.

View all Ubuntu 24.04 LTS tutorials on the Tutorials Hub →

Browse all common problems & solutions on the Tutorials Hub.

References & Further Reading

PipeWire docs and Ubuntu kernel issue trackers.