alsa-project/alsa-ucm-conf issue #108 was opened from jmontleon:

On a Pixelbook I have copied these firmware files in place: - /opt/google/dsm/dsmparam.bin - /lib/firmware/9d71-GOOGLE-EVEMAX-0-tplg.bin - /lib/firmware/dsp_lib_dsm_core_spt_release.bin - /lib/firmware/intel/dsp_fw_C75061F3-F2B2-4DCC-8F9F-82ABB4131E66.bin

With that alone the speakers started working after a reboot.

I have been trying to modify the ucm HiFi.conf to ucm2 on Fedora. If I comment out all of `SectionDevice."Headphones"` the speakers and internal microphone work. If I leave it I see a bunch of error messages in dmesg. Pulseaudio also produces some error messages and then just loads a dummy device.

dmesg: ``` [ 7866.107942] Kbl Audio Headset Playback: ASoC: no backend DAIs enabled for Kbl Audio Headset Playback [ 7866.107950] Kbl Audio Headset Playback: ASoC: dpcm_fe_dai_prepare() failed (-22) ```

pulseaudio: ``` D: [pulseaudio] alsa-util.c: Maximum hw buffer size is 21845 ms I: [pulseaudio] (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_PREPARE failed (-22) I: [pulseaudio] (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_PREPARE failed (-22) I: [pulseaudio] (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_PREPARE failed (-22) I: [pulseaudio] (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_PREPARE failed (-22) D: [pulseaudio] alsa-util.c: Set neither period nor buffer size. I: [pulseaudio] (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_PREPARE failed (-22) I: [pulseaudio] alsa-util.c: snd_pcm_hw_params failed: Invalid argument D: [pulseaudio] alsa-util.c: Trying plug:_ucm0006.hw:kblr55145663max,2 with SND_PCM_NO_AUTO_FORMAT ... I: [pulseaudio] (alsa-lib)conf.c: Unknown parameter 1 I: [pulseaudio] (alsa-lib)conf.c: Parse arguments error: No such file or directory I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM plug:_ucm0006.hw:kblr55145663max,2 I: [pulseaudio] alsa-util.c: Error opening PCM device plug:_ucm0006.hw:kblr55145663max,2: No such file or directory D: [pulseaudio] alsa-mixer.c: Profile set 0x555cededf730, auto_profiles=no, probed=yes, n_mappings=0, n_profiles=0, n_decibel_fixes=0 E: [pulseaudio] module-alsa-card.c: Failed to find a working profile. E: [pulseaudio] module.c: Failed to load module "module-alsa-card" (argument: "device_id="0" name="platform-kbl_r5514_5663_max" card_name="alsa_card.platform-kbl_r5514_5663_max" namereg_fail=false tsched=yes fixed_latency_range=no ignore_dB=no deferred_volume=yes use_ucm=yes avoid_resampling=no card_properties="module-udev-detect.discovered=1""): initialization failed. I: [pulseaudio] module-udev-detect.c: Card /devices/platform/kbl_r5514_5663_max/sound/card0 (alsa_card.platform-kbl_r5514_5663_max) failed to load module. ```

From reading I gather there's probably some routing incorrectly or incompletely set up that is the cause, but I'm at a bit of a loss on where to go from here.

I saw a suggestion somewhere to set this module option, but as far as I can tell it makes no difference: ``` cat /etc/modprobe.d/dsp.conf options snd_intel_dspcfg dsp_driver=2 ```

Not really an alsa / ucm problem as far as I am aware but in the interest of giving as much info as possible I originally switched to pulseaudio because I had an easier time finding meaningful logs. I switched back to pipewire later to realize the mic is just producing awful noise so I went back to pulseaudio for the time being. Might need to file a pipewire bug later.

The HiFi.conf and alsa-info are attached.

[alsa-info.txt](https://github.com/alsa-project/alsa-ucm-conf/files/6870590/alsa-info.txt) [Hifi.conf.txt](https://github.com/alsa-project/alsa-ucm-conf/files/6870593/Hifi.conf.txt)

Issue URL : https://github.com/alsa-project/alsa-ucm-conf/issues/108 Repository URL: https://github.com/alsa-project/alsa-ucm-conf