The solution that worked for me (): the solution that worked for me was to compile the kernal using following steps: cloned the repo: https://github.com/thesofproject/linux.git
and run following commands ``` sudo apt install build-essential libssl-dev ccache bison flex libelf-dev dwarves sudo apt-get build-dep linux-image-`uname -r` #(the running kernel) ``` and after that go inside the repo folder and copy over current cofig: cp /boot/config-$(uname -r) .config Removed/commented from .config file --> #CONFIG_SYSTEM_TRUSTED_KEYS sudo make menuconfig sudo make clean sudo make deb-pkg LOCALVERSION=-custom KDEB_PKGVERSION=$(make kernelversion)-1 cd .. install the kernal using : sudo dpkg -i linux* -- 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
