Alsactl store fails

Stupps · October 15, 2021, 11:18am

Hello.

I set up (via alsamixer) hifiberry to work with differential (symmetrical) input. However, after restart zynthian comes up without these edits made before.
“alsactl store” brings up an error:
ALSA lib conf .c:1887: (_snd_config_load_with_include) toplevel:335:30:Unexpected char

ZynthianOS Timestamp 2020-09-05

Any ideas?

le51 · October 15, 2021, 7:16pm

yep:

https://support.hifiberry.com/hc/en-us/community/posts/360009452418-DAC-ADC-PRO-issue-alsactl
When storing settings which contain a [ or ], the setting is not quoted. · Issue #22 · alsa-project/alsa-lib · GitHub (link from hifiberry forum post above)

riban · October 16, 2021, 8:56am

Have you tried configuring the inputs using webconf? I set the input to diff and rebooted and it came back as diff.

Stupps · October 18, 2021, 7:38am

Following solved it (for me):

copying /var/lib/alsa/asound.state to ~/.config/asound.state
editing ~/.config/asound.state (see https://github.com/alsa-project/alsa-lib/issues/22)
editing /etc/rc.local : ‘alsactl --file /root/.config/asound.state restore’

riban · October 18, 2021, 1:29pm

That shouldn’t be required.

le51 · October 18, 2021, 1:50pm

Did you update your box since then ? In 2020-09, Zynthian was running on debian buster, with alsa-lib 1.1.8, while now we’re on debian bullseyes with alsa-lib 1.2.4 where the bug has been fixed.

Edit:
I had a look at ssh welcome screen:

I’m on bullseyes (kernel 5.10.60) but it’s timestamped like you: 2020-09-05 (there’s something wrong in the zynthian distro build process).

le51 · October 22, 2021, 1:36pm

This sounds really odd. This bug should have been solved in the current alsa-lib.
Are you sure, you are running on the latest stable Zynthian Os release ?