Audio Problem

Jan007

I’am using an Raspberry 3 on a Samsung TV connected with HDMI. Today I updated the system and after that the sound doesn’t work.

1v10: VolumeControl::init() - Failed to attach to default card!
ALSA lib confmisc.c:768:(parse_card) cannot find card '0'
ALSA lib conf.:4241:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_conca) error evaluating strings
ALSA lib conf.c:4241:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1251:(snd_func_refer) error evaluating name
ALSA lib conf.c:4241:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:4270:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2217:(snd_pcm_open_noupdate) Unknown PCM default
1v10: AudioManager Error - Unable to open SDL audio: ALSA: Couldn't open audio device: No such file or directory

I checked dtparam=audio=on in /boot/config.txt.... it’s on!

Also the Sound in Kodi (under Ports) still works...

Jan007

pi@retropie:~ $ speaker-test -c 2

speaker-test 1.1.3

Playback device is default
Stream parameters are 48000Hz, S16_LE, 2 channels
Using 16 octaves of pink noise
ALSA lib confmisc.c:767:(parse_card) cannot find card '0'
ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_card_driver returned error: No such file or directory
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_concat returned error: No such file or directory
ALSA lib confmisc.c:1246:(snd_func_refer) error evaluating name
ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:5007:(snd_config_expand) Evaluate error: No such file or directory
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM default
Playback open error: -2,No such file or directory
pi@retropie:~ $

mitu

Do you have any configuration done for the ALSA - like a custom .asoundrc or /etc/asound.conf ? What's the output of aplay -L ?
Also, add more details about your system, as requested in https://retropie.org.uk/forum/topic/3/read-this-first.

Jan007

There is a audio problem with the current firmware. I downgraded to the last version, now it works again.

mitu

@Jan007 Do you have an RPI issue/forum link ?

Jan007

@mitu I did:

Sudo apt update
Sudo apt dist-upgrade
Sudo rpi-update

No other changes! After that the sound didn’t work. Now I did a downgrade with rpi-update and it works again...

mitu

@Jan007 I see. rpi-update is not recommended as regular update method for quite some time - it's only useful to test the next kernel/firmware versions.

From https://github.com/Hexxeh/rpi-update:

Bug fixes and improvements will eventually make their way into new Raspbian releases and apt-get when they are considered sufficiently well tested.

A good reason for using this would be if you like to help with the testing effort, and are happy to risk breakages and submit bug reports. These testers are welcome.

Also if you are suffering from a bug in current firmware (perhaps as one of the reporters of the bug on github or forum) and a fix has been pushed out for testing, then using rpi-update is the right way to get the fix until it makes its way into new Raspbian images and apt-get.

Backing up before updating is always advisable.

z3razerviper

What is the regular recommended update method and how do I downgrade the current firmware. Sorry I am new to retropie.

mitu

@z3razerviper The regular update method is through apt-get / apt - you'll have this option when you do run update from the RetroPie-Setup script (update the OS and the packages).
To go back from a rpi-update kernel/firmware to the stable version, just run

sudo apt-get install --reinstall raspberrypi-bootloader raspberrypi-kernel

z3razerviper

@mitu said in Audio Problem:

sudo apt-get install --reinstall raspberrypi-bootloader raspberrypi-kernel

Thank you :)