No Sound Through Speakers on C201P

[dracnortw]

I'm unable to hear anything through the speakers using C201P (everything else is working, including headphones). PulseAudio/Volume Control does show speakers in the Output Devices, and there is output/volume bars coming from applications. I tried bringing over some ucm files from another Chromebook I have (same model), but still no luck.

[petm5]

Maybe check the speaker connector inside the chromebook. After I disassembled mine sound wasn't working because I forgot to plug the connector back in.

[petm5]

I found a fix for this issue since sound wasn't working for me either when I installed Cadmium. Basically ALSA can't initialize the sound card properly due to a naming issue with the UCM files. Here is a fix:

cd /usr/share/alsa/ucm2
cp Rockchip/max98090/ VEYRON-I2S/ -r
mv VEYRON-I2S/max98090.conf VEYRON-I2S/VEYRON-I2S.conf
Then reboot or run alsaucm -c VEYRON-I2S set _verb HiFi

Sound through the speakers should now be working.

[WizzardSK]

How did you know about that folder name VEYRON-I2S? I have similar problem with Acer Spin 513 (lazor), but it seems I do not have the correct ucm file at all. I copied all the files from recovery image, but they look like legacy ucm files.
I copied it to /usr/share/alsa/ucm2/SC7180/sc7180-rt5682-max98357a-1mic.conf and HiFi.conf, addes "Syntax 2" or "Syntax 3" line to sc7180-rt5682-max98357a-1mic.conf, but after restart I had no audio device available at all.

[dracnortw]

I found a fix for this issue since sound wasn't working for me either when I installed Cadmium. Basically ALSA can't initialize the sound card properly due to a naming issue with the UCM files. Here is a fix:

cd /usr/share/alsa/ucm2
cp Rockchip/max98090/ VEYRON-I2S/ -r
mv VEYRON-I2S/max98090.conf VEYRON-I2S/VEYRON-I2S.conf
Then reboot or run alsaucm -c VEYRON-I2S set _verb HiFi

Sound through the speakers should now be working.

That did the trick. Thanks peter-marshall5!

[jthiem]

Had the same problem on the C100P (Minnie). Fix also worked for me, thanks!

[LoganMD]

I found a fix for this issue since sound wasn't working for me either when I installed Cadmium. Basically ALSA can't initialize the sound card properly due to a naming issue with the UCM files. Here is a fix:

cd /usr/share/alsa/ucm2
cp Rockchip/max98090/ VEYRON-I2S/ -r
mv VEYRON-I2S/max98090.conf VEYRON-I2S/VEYRON-I2S.conf
Then reboot or run alsaucm -c VEYRON-I2S set _verb HiFi

Sound through the speakers should now be working.

would you be able to submit a pull request with the fix applied to cadmium?

[petm5]

OK, I created a pull request with the required UCM files in place. It builds successfully and the UCM files are placed properly into /usr/share/alsa/ucm2.

[cvmiller]

I am running Cadmium on a C201PA, and I have tried the steps above, with no luck. I did reboot, still no sound. I tried the command alsaucm -c VEYRON-I2S set _verb HiFi and get the error:

$ alsaucm -c VEYRON-I2S set _verb HiFi
ALSA lib main.c:1412:(snd_use_case_mgr_open) error: failed to import VEYRON-I2S use case configuration -2
alsaucm: error failed to open sound card VEYRON-I2S: No such file or directory

Any suggestions? Audio does play out the headphone jack.

[petm5]

I found a fix:

For some reason now the correct name for the folder is "VEYRONI2S" instead of "VEYRON-I2S". To find out I typed cat /sys/class/sound/card0/id
To get sound working I just copied the UCM files from Chrome OS but renamed them accordingly. If you have Chrome OS installed on the internal storage, these commands might work to enable sound:

mount /dev/mmcblk0p5 /mnt
cp /mnt/usr/share/alsa/ucm/VEYRON-I2S /usr/share/alsa/ucm2/VEYRONI2S
mv /usr/share/alsa/ucm2/VEYRONI2S/VEYRON-I2S.conf /usr/share/alsa/ucm2/VEYRONI2S/VEYRONI2S.conf
alsaucm -c VEYRONI2S set _verb HiFi set _enadev Speaker

[Wooty-B]

I am also having issues with sound on my C201P and have hit a roadblock.

Commands I used to set ALSA device:
cd /usr/share/alsa/ucm2
cp Rockchip/max98090/ VEYRONI2S/ -r
mv VEYRONI2CS/max98090.conf VEYRONI2S/VEYRONI2S.conf

alsaucm -c VEYRONI2S set _verb HiFi set _enadev Speaker
[Output]
ALSA lib ucm_subs.c:752:(uc_mgr_get_substituted_value) variable '${CardId}' is not defined in this context!
ALSA lib parser.c:1020:(parse_value) error: unable to parse a string for id 'PlaybackPCM'!
ALSA lib parser.c:1329:(parse_device) error: failed to parse Value
ALSA lib parser.c:1737:(parse_verb_file) error: /Rockchip/max98090/HiFi.conf failed to parse device
ALSA lib main.c:1412:(snd_use_case_mgr_open) error: failed to import VEYRONI2S use case configuration -22
alsaucm: error failed to open sound card VEYRONI2S: Invalid argument

Dmesg output:
dmesg | grep {sound,max98090,VEYRON-I2S}
rockchip-snd-max98090 sound: Soc register card failed -517
input: VEYRON-I2S Headset Jack as /devices/platform/sound/sound/card0/input0
input: VEYRON-I2S HDMI Jack as /devices/platform/sound/sound/card0/input1
max98090 2-0010: MAX98090 REVID=0x43
max98090 2-0010: use default 2.8v micbias
#0: VEYRON-I2S

Copying /usr/share/alsa/ucm2/VEYRONIC2S to VEYRON-I2CS w/ VEYRON-I2CS.conf naturally results in same error. Sound output VIA headphone jack is fine, however still no sound output from internal speakers.

[TheNathan0]

I am running Cadmium on a C201PA, and I have tried the steps above, with no luck. I did reboot, still no sound. I tried the command alsaucm -c VEYRON-I2S set _verb HiFi and get the error:

$ alsaucm -c VEYRON-I2S set _verb HiFi

ALSA lib main.c:1412:(snd_use_case_mgr_open) error: failed to import VEYRON-I2S use case configuration -2

alsaucm: error failed to open sound card VEYRON-I2S: No such file or directory

Any suggestions? Audio does play out the headphone jack.

I got the exact same thing on my C100PA. It doesn't work. Sound didn't work out of the box and it didn't work after the fix either (with the speakers). I don't have the original ChromeOS install either to try any file-swaps. This was done on version 0.3.0

[Wooty-B]

> I am also having issues with sound on my C201P and have hit a roadblock.

> Commands I used to set ALSA device: cd /usr/share/alsa/ucm2 cp Rockchip/max98090/ VEYRONI2S/ -r mv VEYRONI2CS/max98090.conf VEYRONI2S/VEYRONI2S.conf

> alsaucm -c VEYRONI2S set _verb HiFi set _enadev Speaker [Output] ALSA lib ucm_subs.c:752:(uc_mgr_get_substituted_value) variable '${CardId}' is not defined in this context! ALSA lib parser.c:1020:(parse_value) error: unable to parse a string for id 'PlaybackPCM'! ALSA lib parser.c:1329:(parse_device) error: failed to parse Value ALSA lib parser.c:1737:(parse_verb_file) error: /Rockchip/max98090/HiFi.conf failed to parse device ALSA lib main.c:1412:(snd_use_case_mgr_open) error: failed to import VEYRONI2S use case configuration -22 alsaucm: error failed to open sound card VEYRONI2S: Invalid argument

> Dmesg output: dmesg | grep {sound,max98090,VEYRON-I2S} rockchip-snd-max98090 sound: Soc register card failed -517 input: VEYRON-I2S Headset Jack as /devices/platform/sound/sound/card0/input0 input: VEYRON-I2S HDMI Jack as /devices/platform/sound/sound/card0/input1 max98090 2-0010: MAX98090 REVID=0x43 max98090 2-0010: use default 2.8v micbias #0: VEYRON-I2S

> Copying /usr/share/alsa/ucm2/VEYRONIC2S to VEYRON-I2CS w/ VEYRON-I2CS.conf naturally results in same error. Sound output VIA headphone jack is fine, however still no sound output from internal speakers.

@Maccraft123 Any updates on this..? Issue has been ongoing for almost 6 months now, I have re-run all commands in this thread as well as multiple re-installs. Headphone jack still works but no speaker output. Please let me know what info I can provide to help as I am totally lost on how to remedy this...

Please disregard, I was trying to make an old install work which was not conducive to resolving the issue. I ended up making a full backup, installing the latest image, and it appears that sound is working out-of-the-box.

That being said, not sure of C100 or other related models are affected but this may actually be able to be closed.