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 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. 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 :) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1939205/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
