[Bug 1939205] Re: sound dummy output 21.04

The stock ubuntu means the official version:
https://iso.mirrors.ustc.edu.cn/ubuntu-
releases/21.04/ubuntu-21.04-desktop-amd64.iso

And could you please run 21.04 from installation usb stick (not install
from usb stick, just try ubuntu from usb stick) and check if the audio
works or not?


To debug pulseaudio:

edit /lib/systemd/user/pulseaudio.service
do the change in this file as below:
#ExecStart=/usr/bin/pulseaudio --daemonize=no --log-target=journal
ExecStart=/usr/bin/pulseaudio --daemonize=no -vvvv --log-target=file:/home/$user/a.txt

reboot
upload the a.txt

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https://bugs.launchpad.net/bugs/1939205

Title:
sound dummy output 21.04

Status in linux package in Ubuntu:
New

Bug description:
no more sound device /output since dist upgrade from 20.10 to 21.04

tried both official ubuntu kernel 5.11.0.26 and newer
5.13.8-051308-generic

alsa log:

http://alsa-project.org/db/?f=07dfaad1d5d30948449dc36f0caaf39c99145cce

lsb_release -rd
Description: Ubuntu 21.04
Release: 21.04

apt-cache policy pkgname
N: Unable to locate package pkgname

ubuntu-bug linux: package not installed


cat /proc/version_signature > version.log
cat: /proc/version_signature: No such file or directory

sudo lspci -vnvn > lspci-vnvn.log
pcilib: sysfs_read_vpd: read failed: Input/output error


be descriptive in helping as im a newbie to linux troubleshoot :)

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