Public bug reported: [ Impact ]
Pipewire is failing on Qualcomm IQ8 running resolute due to invalid capture channel config, resulting reporting a dummy output. D 18:44:40.991490 spa.alsa ../spa/plugins/alsa/acp/alsa- util.c:299:pa_alsa_set_hw_params: snd_pcm_hw_params_set_channels(1) failed: Invalid argument ubuntu@ubuntu:~$ wpctl status PipeWire 'pipewire-0' [1.6.2, ubuntu@ubuntu, cookie:231695144] └─ Clients: 33. WirePlumber [1.6.2, ubuntu@ubuntu, pid:2392] 37. pipewire [1.6.2, ubuntu@ubuntu, pid:2395] 40. WirePlumber [export] [1.6.2, ubuntu@ubuntu, pid:2392] 80. wpctl [1.6.2, ubuntu@ubuntu, pid:2985] Audio ├─ Devices: │ 48. Built-in Audio [alsa] │ ├─ Sinks: │ * 38. Dummy Output [vol: 1.00] │ ├─ Sources: │ This means the audio is broken on Qualcomm IQ8 EVK. The fix for it is available in 1.2.16. Upstream fix: https://github.com/alsa-project/alsa-ucm-conf/commit/5c7b40c96b6cefd4d1d545d89b6d030248f0bb1c.patch [ Test Plan ] Play/Record audio using pipewire. Without the fix: ubuntu@ubuntu:~$ wpctl status PipeWire 'pipewire-0' [1.6.2, ubuntu@ubuntu, cookie:231695144] └─ Clients: 33. WirePlumber [1.6.2, ubuntu@ubuntu, pid:2392] 37. pipewire [1.6.2, ubuntu@ubuntu, pid:2395] 40. WirePlumber [export] [1.6.2, ubuntu@ubuntu, pid:2392] 80. wpctl [1.6.2, ubuntu@ubuntu, pid:2985] Audio ├─ Devices: │ 48. Built-in Audio [alsa] │ ├─ Sinks: │ * 38. Dummy Output [vol: 1.00] │ ├─ Sources: │ With the fix: ubuntu@ubuntu:~$ wpctl status PipeWire 'pipewire-0' [1.6.2, ubuntu@ubuntu, cookie:4026247188] └─ Clients: 33. WirePlumber [1.6.2, ubuntu@ubuntu, pid:2258] 38. WirePlumber [export] [1.6.2, ubuntu@ubuntu, pid:2258] 39. pipewire [1.6.2, ubuntu@ubuntu, pid:2261] 83. wpctl [1.6.2, ubuntu@ubuntu, pid:2561] Audio ├─ Devices: │ 48. Built-in Audio [alsa] │ ├─ Sinks: │ * 80. Built-in Audio Speaker playback [vol: 0.40] │ ├─ Sources: │ * 81. Built-in Audio Mic [vol: 1.00] │ ├─ Filters: │ [ Where problems could occur ] Since it is a small change in ucm conf affecting only the target devices, the surface is much smaller. As the audio is already broken, I don't see any major issues with this patch. [ Other Info ] v1.2.16 is already in ubuntu/devel ** Affects: alsa-ucm-conf (Ubuntu) Importance: Undecided Status: New ** Tags: fixed-upstream ** Summary changed: - [SRU] Remove Fixed channel setting for monaco-evk + [SRU] Remove Fixed channel setting for Qualcomm monaco-evk -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2170395 Title: [SRU] Remove Fixed channel setting for Qualcomm monaco-evk To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-ucm-conf/+bug/2170395/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
