Hello folks, Can you give the following test kernel a try, which contains a possible fix: https://github.com/torvalds/linux/commit/23939115be181bc5dbc33aa8471adcdbffa28910
Steps: 1. Remove the workaround that you made and make sure you have this issue in Focal / Impish 5.13.0-37 2. Download kernel deb files here based on your current distro, put them into a new directory: focal - https://people.canonical.com/~phlin/kernel/lp-1966066-usb-audio/focal/ impish - https://people.canonical.com/~phlin/kernel/lp-1966066-usb-audio/impish/ 2. Roll back to 5.13.0-35 by selecting the corresponding entry in GRUB 3. Remove the 5.13.0-37 kernel, otherwise it will complain about a version conflict: sudo apt remove linux-image-5.13.0-37-generic linux-image-unsigned-5.13.0-37-generic 4. Install those deb files in Step 2, with command: sudo dpkg -i linux-*5.13*.deb 5. Reboot to this test kernel and check the version number with `uname -vr`, it should be something like: 5.13.0-37-generic #42+lp1966066 SMP Tue Mar 29 02:54:38 UTC 2022 6. Test your audio and see if it helps After your test, you can undo this change by: A. Rolling back to 5.13.0-35 again B. sudo apt remove linux-image-unsigned-5.13.0-37-generic C. sudo apt install linux-image-5.13.0-37-generic Thanks! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1966066 Title: audio from external sound card is distorted To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-5.13/+bug/1966066/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
