Hello vinz,

Can you help me to test this Impish 5.13 kernel?

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 
5.13.0-37
2. Download kernel deb files here based on your current distro, put them into a 
new directory:
   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 Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1966147

Title:
  5.13.0-37.42 terrible sound via usb

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  updated yesterday to kernel 5.13.0-37.42 and sound from usb is awfully
  distorted, while from bluetooth and hdmi is unaltered.

  reverted to 5.13.0-35.40 via grub and sound via usb is back to normal.
  --- 
  ProblemType: Bug
  ApportVersion: 2.20.11-0ubuntu71
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC3:  vinz       2684 F.... pulseaudio
   /dev/snd/controlC2:  vinz       2684 F.... pulseaudio
   /dev/snd/controlC1:  vinz       2684 F.... pulseaudio
   /dev/snd/controlC0:  vinz       2684 F.... pulseaudio
  CasperMD5CheckResult: unknown
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 21.10
  InstallationDate: Installed on 2020-10-24 (518 days ago)
  InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
  MachineType: Gigabyte Technology Co., Ltd. X570 AORUS ULTRA
  NonfreeKernelModules: nvidia_modeset nvidia
  Package: linux (not installed)
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.13.0-37-generic 
root=UUID=fcdf975b-fa37-4978-8a4b-e452f2f74512 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 5.13.0-37.42-generic 5.13.19
  RelatedPackageVersions:
   linux-restricted-modules-5.13.0-37-generic N/A
   linux-backports-modules-5.13.0-37-generic  N/A
   linux-firmware                             1.201.5
  Tags:  impish
  Uname: Linux 5.13.0-37-generic x86_64
  UpgradeStatus: Upgraded to impish on 2022-01-27 (58 days ago)
  UserGroups: adm cdrom dip docker lpadmin lxd plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 09/15/2020
  dmi.bios.release: 5.17
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: F30
  dmi.board.asset.tag: Default string
  dmi.board.name: X570 AORUS ULTRA
  dmi.board.vendor: Gigabyte Technology Co., Ltd.
  dmi.board.version: Default string
  dmi.chassis.asset.tag: Default string
  dmi.chassis.type: 3
  dmi.chassis.vendor: Default string
  dmi.chassis.version: Default string
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvrF30:bd09/15/2020:br5.17:svnGigabyteTechnologyCo.,Ltd.:pnX570AORUSULTRA:pvr-CF:rvnGigabyteTechnologyCo.,Ltd.:rnX570AORUSULTRA:rvrDefaultstring:cvnDefaultstring:ct3:cvrDefaultstring:skuDefaultstring:
  dmi.product.family: X570 MB
  dmi.product.name: X570 AORUS ULTRA
  dmi.product.sku: Default string
  dmi.product.version: -CF
  dmi.sys.vendor: Gigabyte Technology Co., Ltd.

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