Update on previous comment (https://bugs.launchpad.net/ubuntu/+source/linux-signed- hwe-5.13/+bug/1966066/comments/36)
Booting into 5.13.0-37-generic #42+lp1966066 SMP Tue Mar 29 02:54:38 UTC 2022 fixes - "KORG, Inc. ToneLabST" regular popping issue and - "Focusrite-Novation Scarlett 2i4" still works BUT now my second display stops working. (Tried switching back and forth between 5.13.0-39 and -37 #42+lp1966066, it happens only with the patched kernel) Both my displays are connected through a "NVIDIA Corporation GK208B [GeForce GT 730] (rev a1)", but the one connected through the HDMI slot stops working on the patched kernel. It doesn't receive a signal and is not listed in xrandr --query No change in regards to "Harman Soundcraft 2-channel Audio Driver", but this might be unrelated. So the patch helps a bit at least. If I use it I can play/record through the audio interface again, but only with 1 screen. :P -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-signed-hwe-5.13 in Ubuntu. https://bugs.launchpad.net/bugs/1966066 Title: audio from external sound card is distorted Status in linux package in Ubuntu: Fix Committed Status in linux-signed-hwe-5.13 package in Ubuntu: Invalid Status in linux source package in Impish: Fix Committed Status in linux-signed-hwe-5.13 source package in Impish: Invalid Status in linux source package in Jammy: Fix Committed Status in linux-signed-hwe-5.13 source package in Jammy: Invalid Bug description: [Impact] Commit d215f63d49da ("ALSA: usb-audio: Check available frames for the next packet size") landed in 5.13.0-35 introduced regression to USB audio device. It's because this patch introduced the available frame size check, but the conversion forgot to initialize the temporary variable properly. A workaround is to modify /etc/pulse/daemon.conf, set the default-sample-rate to 48000, uncomment it by removing the semicolon at the beginning of the line. And restart pulseaudio with: systemctl --user restart pulseaudio.service [Fix] * 23939115 ALSA: usb-audio: Fix packet size calculation regression This patch can be cherry-picked into Impish kernel, and it's already in the master-next branch of Jammy tree. [Test] Test kernels built with 5.13.0-37 + this patch, can be found in: * Focal-5.13 - https://people.canonical.com/~phlin/kernel/lp-1966066-usb-audio/focal/ * Impish-5.13 - https://people.canonical.com/~phlin/kernel/lp-1966066-usb-audio/impish/ Both kernels were tested by affected users and they're working as expected. [Where problems could occur] If this patch is incorrect, it might affect USB audio devices. [Original Bug Report] The sound card is a Focusrite Scarlett 2i2. The sound is distorted everywhere. Sound via HDMI works. Seen others having the same problem: (Edit because of previously wrong link here) https://askubuntu.com/questions/1398614/upgrading-to-5-13-0-37-generic-breaks-audio-with-external-audio-card ubuntu release: Ubuntu 20.04.4 LTS package name involved in bug: linux-image-5.13.0-37-generic ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: linux-image-5.13.0-37-generic 5.13.0-37.42~20.04.1 ProcVersionSignature: Ubuntu 5.13.0-35.40~20.04.1-generic 5.13.19 Uname: Linux 5.13.0-35-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu27.21 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Wed Mar 23 12:56:02 2022 InstallationDate: Installed on 2020-12-18 (459 days ago) InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731) SourcePackage: linux-signed-hwe-5.13 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1966066/+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
