[SDW UCM2][BUG][CML-H] Speaker mixer settings are muted by default in alsamixer

[sinahuang]

Describe the bug
Both rt1308-1 DAC L rt1308-1 DAC R and rt1308-2 DAC R rt1308-2 DAC L are muted in default in alsamixer.

More info:
Need manually change rt1308-1 DAC L rt1308-1 DAC R and rt1308-2 DAC R rt1308-2 DAC L to unmute in alsamixer can recover.
UCM2:
https://github.com/thesofproject/alsa-ucm-conf (commit: 4722f5b ) +thesofproject/alsa-ucm-conf#29

To Reproduce

1. Install Ubuntu 20.04 Beta, copy ucm2, update the kernel the firmware.

2. reboot system, without headset connected.
   Confirm speaker is the default output device in Sound Settings.

3. Play a test wave file via PulseAudio:
   $paplay xx.wav file
   There is no sound output from the speaker.

4. Check the following RT1308 mixer settings in alsamixer, and found they're all muted
   rt1308-1 DAC L
   rt1308-1 DAC R
   rt1308-2 DAC R
   rt1308-2 DAC L

Reproduce rate
5/5

Expected result
These RT1308 mixser settings should unmuted by default in alsamixer, and there should be audio output from the speaker whey running paplay.

Actual result
No sound output when paplay on speaker.
It seems the defaut value of these mixer settings are muted, and not configured successfully by ucm2.

Test recipe
OS: Ubuntu 20.04 daily image
Kernel:https://github.com/thesofproject/linux/commits/topic/sof-dev commit:052e45d
FW: https://github.com/thesofproject/sof/commits/master commit: b4e8b1e4
Tplg: Same with FW branch, sof-cml-rt711-rt1308-rt715.tplg
Platform:CML-H Laptop with codec ALC711, 2 x RT1308, RT715 in SDW mode.

[YvonneYang2]

This issue can also be reproduced on cml-u laptop sometimes when we boot system for the 1st time after installing Ubuntu 20.04 Beta. If the default speaker mixer value are muted, no sound output are got although speaker is the default output device. After we manually use alsamixer to unmute the speaker mixers, we can get the sound output from the speaker. And then everything works well even if we reboot the system.

But we also observed the default speaker values can be unmuted on other cml-u devices at 1st boot after installing the Ubuntu 20.04.

It seems the default speaker mixer value is random after we install Ubuntu 20.04 and boot the system. UCM2 cannot help to unmute the speaker. PulseAudio doesn't care amixer state.

But this issue never happens on the headset (ALC711)

[plbossart]

Why are you guys playing with alsamixer and interfering with UCM?

Also can you clarify that the control names are, the screenshots are not very useful since they only show parts of the name

[plbossart]

@sinahuang can you please retry with thesofproject/alsa-ucm-conf#34

[sinahuang]

Tried with thesofproject/alsa-ucm-conf#34, issue still can be reproduced by the below scenarios.
scenario1:
Mute speaker and rt1308-1 DAC L rt1308-1 DAC R and rt1308-2 DAC R rt1308-2 DAC L in alsamixer manually then switch output source to speaker in sound setting, it cannot be unmuted in alsamixer.
scenario2:
Mute speaker and rt1308-1 DAC L rt1308-1 DAC R and rt1308-2 DAC R rt1308-2 DAC L in alsamixer manually, then tried to reboot system, checked alsamixer after booting up successfully, they are still muted.

101 numid=66,iface=MIXER,name='rt1308-1 DAC L Switch'
102   ; type=BOOLEAN,access=rw------,values=1
103   : values=off
104 numid=67,iface=MIXER,name='rt1308-1 DAC R Switch'
105   ; type=BOOLEAN,access=rw------,values=1
106   : values=off
107 numid=9,iface=MIXER,name='rt1308-1 RX Channel Select'
108   ; type=ENUMERATED,access=rw------,values=1,items=4
109   ; Item #0 'LR'
110   ; Item #1 'LL'
111   ; Item #2 'RL'
112   ; Item #3 'RR'
113   : values=0
114 numid=68,iface=MIXER,name='rt1308-2 DAC L Switch'
115   ; type=BOOLEAN,access=rw------,values=1
116   : values=off
117 numid=69,iface=MIXER,name='rt1308-2 DAC R Switch'
118   ; type=BOOLEAN,access=rw------,values=1
119   : values=off

amixer contensts.txt

[plbossart]

Again, invalid test. Don't use UCM and change values with alsamixer, that's just wrong.

[sinahuang]

The default value of these speaker mixers were off when I boot up for the first time after installing ubuntu 20.04 with UCM2.

[YvonneYang2]

Reinstall Ubuntu 20.04 Beta on SDW CML-U and CML-H laptop, copy ucm2, update the kernel the firmware, and reboot system without headphone. Speaker mixer setting are muted by default in alsamixer. Issue can be reproduced.

More info on CML-U laptop:
amixer_contents.txt

Screenshot: