UCM2 for HP Chromebook X2 11" (sc7180-adau7002-max98357a)

[pulakctl]

Hi, I've been trying to get sound working on this tablet.

Since I'm quite new to alsa UCM & PA/PW, I took a look at the existing sc7180-rt5682-max98357a config as well as the ChromeOS UCM for this system.

It looks like the hardware does not have any hw controls (alsamixer -c 0 shows no bars), so it was easy to get internal speakers & microphone working (albeit without any gain for the mic).

However, I could not get the USB HDMI/DP output to work seamlessly. Even though I've mentioned the JackControl, PA tries to open the device, errors out, and fails to find a working profile. It only works if I reboot the system with HDMI plugged in. Jack detection itself seems to be fine(from the output of amixer -c 0 contents), so is there something else I should be doing here?

amixer -c 0 contents

numid=1,iface=CARD,name='HDMI Jack'
  ; type=BOOLEAN,access=r-------,values=1
  : values=off
numid=5,iface=PCM,name='ELD',device=2
  ; type=BYTES,access=r--v----,values=128
  : values=0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
numid=4,iface=PCM,name='IEC958 Playback Default',device=2
  ; type=IEC958,access=rw------,values=1
  : values=[AES0=0x04 AES1=0x00 AES2=0x00 AES3=0x01]
numid=3,iface=PCM,name='IEC958 Playback Mask',device=2
  ; type=IEC958,access=r-------,values=1
  : values=[AES0=0xff AES1=0xff AES2=0xff AES3=0xff]
numid=2,iface=PCM,name='Playback Channel Map',device=2
  ; type=INTEGER,access=r----R--,values=8,min=0,max=36,step=0
  : values=0,0,0,0,0,0,0,0
  | container
    | chmap-fixed=FL,FR

pulseaudio -vvv

...
D: [pulseaudio] module-udev-detect.c: /dev/snd/controlC0 is accessible: yes
D: [pulseaudio] module-udev-detect.c: /devices/platform/sound/sound/card0 is busy: no
D: [pulseaudio] module-udev-detect.c: Loading module-alsa-card with arguments 'device_id="0" name="platform-sound" card_name="alsa_card.platform-sound" 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"'
D: [pulseaudio] reserve-wrap.c: Unable to contact D-Bus session bus: org.freedesktop.DBus.Error.Spawn.ExecFailed: /usr/bin/dbus-launch terminated abnormally without any error message
I: [pulseaudio] alsa-ucm.c: UCM available for card hw:0
D: [pulseaudio] alsa-ucm.c: UCM _alibpref=_ucm0006.
I: [pulseaudio] alsa-ucm.c: Set UCM verb to HiFi
D: [pulseaudio] alsa-ucm.c: Got PlaybackPCM for device HDMI: _ucm0006.hw:sc7180adau7002m,2
D: [pulseaudio] alsa-ucm.c: Got PlaybackCTL for device HDMI: _ucm0006.hw:sc7180adau7002m
D: [pulseaudio] alsa-ucm.c: Got CaptureCTL for device HDMI: _ucm0006.hw:sc7180adau7002m
D: [pulseaudio] alsa-ucm.c: Got JackControl for device HDMI: HDMI Jack
I: [pulseaudio] alsa-ucm.c: UCM file does not specify 'PlaybackChannels' for device HDMI, assuming stereo.
D: [pulseaudio] alsa-ucm.c: No _supporteddevs for device HDMI
D: [pulseaudio] alsa-ucm.c: Got CapturePCM for device Mic: _ucm0006.hw:sc7180adau7002m,0
D: [pulseaudio] alsa-ucm.c: Got PlaybackCTL for device Mic: _ucm0006.hw:sc7180adau7002m
D: [pulseaudio] alsa-ucm.c: Got CaptureCTL for device Mic: _ucm0006.hw:sc7180adau7002m
D: [pulseaudio] alsa-ucm.c: Got CapturePriority for device Mic: 100
I: [pulseaudio] alsa-ucm.c: UCM file does not specify 'CaptureChannels' for device Mic, assuming stereo.
D: [pulseaudio] alsa-ucm.c: No _conflictingdevs for device Mic
D: [pulseaudio] alsa-ucm.c: No _supporteddevs for device Mic
D: [pulseaudio] alsa-ucm.c: Got PlaybackPCM for device Speaker: _ucm0006.hw:sc7180adau7002m,1
D: [pulseaudio] alsa-ucm.c: Got PlaybackCTL for device Speaker: _ucm0006.hw:sc7180adau7002m
D: [pulseaudio] alsa-ucm.c: Got PlaybackPriority for device Speaker: 100
D: [pulseaudio] alsa-ucm.c: Got PlaybackRate for device Speaker: 48000
D: [pulseaudio] alsa-ucm.c: Got PlaybackChannels for device Speaker: 2
D: [pulseaudio] alsa-ucm.c: Got CaptureCTL for device Speaker: _ucm0006.hw:sc7180adau7002m
D: [pulseaudio] alsa-ucm.c: UCM playback device Speaker rate 48000
D: [pulseaudio] alsa-ucm.c: No _supporteddevs for device Speaker
I: [pulseaudio] module-alsa-card.c: Found UCM profiles
D: [pulseaudio] alsa-ucm.c: UCM mapping: HiFi: hw:sc7180adau7002m,2: sink dev HDMI
D: [pulseaudio] alsa-ucm.c: UCM mapping: HiFi: hw:sc7180adau7002m,0: source dev Mic
D: [pulseaudio] alsa-ucm.c: UCM mapping: HiFi: hw:sc7180adau7002m,1: sink dev Speaker
D: [pulseaudio] alsa-mixer.c: Profile HiFi (Default), input=(null), output=(null) priority=8000, supported=yes n_input_mappings=1, n_output_mappings=2
D: [pulseaudio] alsa-mixer.c: Input HiFi: hw:sc7180adau7002m,0: source
D: [pulseaudio] alsa-mixer.c: Output HiFi: hw:sc7180adau7002m,2: sink
D: [pulseaudio] alsa-mixer.c: Output HiFi: hw:sc7180adau7002m,1: sink
I: [pulseaudio] alsa-ucm.c: Set ucm verb to HiFi
D: [pulseaudio] alsa-util.c: Trying _ucm0006.hw:sc7180adau7002m,2 with SND_PCM_NO_AUTO_FORMAT ...
D: [pulseaudio] alsa-util.c: Managed to open _ucm0006.hw:sc7180adau7002m,2
D: [pulseaudio] alsa-util.c: snd_pcm_hw_params_set_format(Signed 16 bit Little Endian) failed: Invalid argument
D: [pulseaudio] alsa-util.c: snd_pcm_hw_params_set_format(Signed 16 bit Big Endian) failed: Invalid argument
D: [pulseaudio] alsa-util.c: snd_pcm_hw_params_set_format(Float 32 bit Little Endian) failed: Invalid argument
D: [pulseaudio] alsa-util.c: snd_pcm_hw_params_set_format(Float 32 bit Big Endian) failed: Invalid argument
D: [pulseaudio] alsa-util.c: snd_pcm_hw_params_set_format(Signed 32 bit Little Endian) failed: Invalid argument
D: [pulseaudio] alsa-util.c: snd_pcm_hw_params_set_format(Signed 32 bit Big Endian) failed: Invalid argument
D: [pulseaudio] alsa-util.c: Maximum hw buffer size is 128 ms
I: [pulseaudio] (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HW_PARAMS failed (-22)
I: [pulseaudio] (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HW_PARAMS failed (-22)
I: [pulseaudio] (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HW_PARAMS failed (-22)
I: [pulseaudio] (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HW_PARAMS failed (-22)
D: [pulseaudio] alsa-util.c: Set neither period nor buffer size.
I: [pulseaudio] (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HW_PARAMS failed (-22)
I: [pulseaudio] alsa-util.c: snd_pcm_hw_params failed: Invalid argument
D: [pulseaudio] alsa-util.c: Trying _ucm0006.hw:sc7180adau7002m,2 without SND_PCM_NO_AUTO_FORMAT ...
D: [pulseaudio] alsa-util.c: Managed to open _ucm0006.hw:sc7180adau7002m,2
D: [pulseaudio] alsa-util.c: snd_pcm_hw_params_set_format(Signed 16 bit Little Endian) failed: Invalid argument
D: [pulseaudio] alsa-util.c: snd_pcm_hw_params_set_format(Signed 16 bit Big Endian) failed: Invalid argument
D: [pulseaudio] alsa-util.c: snd_pcm_hw_params_set_format(Float 32 bit Little Endian) failed: Invalid argument
D: [pulseaudio] alsa-util.c: snd_pcm_hw_params_set_format(Float 32 bit Big Endian) failed: Invalid argument
D: [pulseaudio] alsa-util.c: snd_pcm_hw_params_set_format(Signed 32 bit Little Endian) failed: Invalid argument
D: [pulseaudio] alsa-util.c: snd_pcm_hw_params_set_format(Signed 32 bit Big Endian) failed: Invalid argument
D: [pulseaudio] alsa-util.c: Maximum hw buffer size is 128 ms
I: [pulseaudio] (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HW_PARAMS failed (-22)
I: [pulseaudio] (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HW_PARAMS failed (-22)
I: [pulseaudio] (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HW_PARAMS failed (-22)
I: [pulseaudio] (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HW_PARAMS failed (-22)
D: [pulseaudio] alsa-util.c: Set neither period nor buffer size.
I: [pulseaudio] (alsa-lib)pcm_hw.c: SNDRV_PCM_IOCTL_HW_PARAMS failed (-22)
I: [pulseaudio] alsa-util.c: snd_pcm_hw_params failed: Invalid argument
D: [pulseaudio] alsa-util.c: Trying plug:SLAVE='_ucm0006.hw:sc7180adau7002m,2' with SND_PCM_NO_AUTO_FORMAT ...
I: [pulseaudio] (alsa-lib)pcm.c: Unknown PCM _ucm0006.hw:sc7180adau7002m,2
I: [pulseaudio] alsa-util.c: Error opening PCM device plug:SLAVE='_ucm0006.hw:sc7180adau7002m,2': No such file or directory
D: [pulseaudio] alsa-mixer.c: Profile set 0xaaab034ad7e0, 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-sound" card_name="alsa_card.platform-sound" 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/sound/sound/card0 (alsa_card.platform-sound) failed to load module.
D: [pulseaudio] bluez5-util.c: Media application for adapter /org/bluez/hci0 was successfully registered
D: [pulseaudio] module-udev-detect.c: /dev/snd/controlC0 is accessible: yes
D: [pulseaudio] module-udev-detect.c: /devices/platform/sound/sound/card0 is busy: no
W: [pulseaudio] module-udev-detect.c: Tried to configure /devices/platform/sound/sound/card0 (alsa_card.platform-sound) more often than 5 times in 10s
...