lvl0: VolumeControl::init() - Failed to find mixer elements!

[Oli]

I had a problem after updating 4 days ago. Updates finished over Raspberry Option Menu for the driver packages, Core packages. For emulationstation i found no update button in option menu. I have a PI4 and working about HDMI to Samsung TV. The background music is only playing in the main menu. In the games, there is no more sound.
I checked the settings described above and couldn't find any errors. Under sudo nano /boot/config.txt I could correctly find hdmi_drive = 2.
The following entries are under sound options:
Sound 0%
Audio card - default-
Audio Device - HDMI
Omx Player Audio Device - Alsa

I'm also getting the lvl0: VolumeControl::init() - Failed to find mixer elements message and the volume slider always being at 0
The sound can be changed from 0% to 100%, but is not saved when you exit the menu. Is that the mistake?

If you need more information please write me.

I hope you can help me in this case.

BR Oli

Pi Model: 4B+
Power Supply: Pi Brand Supply (original)
RetroPie Version: 4.6.7
Built From: RPi Imager to microSD
USB Devices: Keyboard for installation
Controller: 8Bitdo Gamepad, wired
Emulationstation: V2.9.6RP

[Chupachups]

@oli read this (it's the first post for "help and support" section):
https://retropie.org.uk/forum/topic/26628/audio-issues-after-latest-raspbian-updates-june-2020

try to update to 4.7.1

[Oli]

@chupachups Hi Chupachups, i have finised all updates how in the Retropie Setup guide written. (sudo ~/RetroPie-Setup/retropie_setup.sh)
Retropie Setup Version: 4.7.2
Core Packages Update
all main packages Update
all optional packages Update
all driver packages Update

After the Retropie Update came a Error Message!

Could not successfully install Scraper for EmulationStation by Steven Selph (/home/pi/RetroPie-Setup/tmp/build/scraper/scraper not found)

Same issue as at the beginning no sound in the games but only in the main menu

Does anyone else have an idea?

Thanks Oli

[lolkthxbai]

@oli I am also getting the same error message.

When I first boot, ES plays audio during video previews and nav clicks but, If I launch a SNES game, I have no audio in the game and lose audio in ES.

RetroPie: 4.7.2
Kernel: 5.10.3-v71
EmulationStation: v2.9.6RP
Raspberry Pi 4 (4GB RAM)

[derekr]

@lolkthxbai just got this message as well. I have sound before EmulationStation boot in my video splash but nothing after that. Not in the previews and not in retroarch