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[Bug 2121719] [NEW] My ZOOM UAC-8 sound card often stops working when I use Ardour

To: debcrafters-packages@xxxxxxxxxxxxxxxxxxx
From: Nikola Santro <2121719@xxxxxxxxxxxxxxxxxx>
Date: Fri, 29 Aug 2025 21:42:10 -0000
Reply-to: Bug 2121719 <2121719@xxxxxxxxxxxxxxxxxx>
Sender: noreply@xxxxxxxxxxxxx
Public bug reported:

I use a ZOOM UAC-8 sound card in class compliant mode. When I record in Ardour, I often have to change the sound settings to multi-channel or Pro Audio. Anyway, Ardour blocks after a while, so I have to turn off the power of the sound card to make everything work again after turning on the card again. I also have a ZOOM Uac-2 that works without problems. Both cards work on Windows in both modes (class compliant and normal)
Operating System: Ubuntu Studio 24.04
KDE Plasma Version: 5.27.12
KDE Frameworks Version: 5.115.0
Qt Version: 5.15.13
Kernel Version: 6.8.0-79-lowlatency (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7-6770HQ CPU @ 2.60GHz
Memory: 31.1 GiB of RAM
Graphics Processor: Mesa Intel® Iris® Pro Graphics 580

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: alsa-base 1.0.25+dfsg-0ubuntu7
ProcVersionSignature: Ubuntu 6.8.0-79.79.1-lowlatency 6.8.12
Uname: Linux 6.8.0-79-lowlatency x86_64
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  nikola-santro   1869 F.... wireplumber
 /dev/snd/seq:        nikola-santro   1863 F.... pipewire
CasperMD5CheckResult: pass
CurrentDesktop: KDE
Date: Fri Aug 29 23:20:24 2025
InstallationDate: Installed on 2024-10-26 (307 days ago)
InstallationMedia: Ubuntu-Studio 24.04.1 LTS "Noble Numbat" - Release amd64 (20240827)
PackageArchitecture: all
ProcEnviron:
 LANG=hr_HR.UTF-8
 LANGUAGE=
 PATH=(custom, no user)
 SHELL=/bin/bash
 XDG_RUNTIME_DIR=<set>
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
SourcePackage: alsa-driver
Symptom: audio
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/03/2016
dmi.bios.release: 5.6
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: KYSKLi70.86A.0037.2016.0603.1032
dmi.board.name: NUC6i7KYB
dmi.board.vendor: Intel Corporation
dmi.board.version: H90766-405
dmi.chassis.type: 3
dmi.chassis.vendor: Intel Corporation
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrKYSKLi70.86A.0037.2016.0603.1032:bd06/03/2016:br5.6:svn:pn:pvr:rvnIntelCorporation:rnNUC6i7KYB:rvrH90766-405:cvnIntelCorporation:ct3:cvr1.0:sku:

** Affects: alsa-driver (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug noble

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https://bugs.launchpad.net/bugs/2121719

Title:
  My ZOOM UAC-8 sound card often stops working when I use Ardour

Status in alsa-driver package in Ubuntu:
  New

Bug description:
  I use a ZOOM UAC-8 sound card in class compliant mode. When I record in Ardour, I often have to change the sound settings to multi-channel or Pro Audio. Anyway, Ardour blocks after a while, so I have to turn off the power of the sound card to make everything work again after turning on the card again. I also have a ZOOM Uac-2 that works without problems. Both cards work on Windows in both modes (class compliant and normal)
  Operating System: Ubuntu Studio 24.04
  KDE Plasma Version: 5.27.12
  KDE Frameworks Version: 5.115.0
  Qt Version: 5.15.13
  Kernel Version: 6.8.0-79-lowlatency (64-bit)
  Graphics Platform: X11
  Processors: 8 × Intel® Core™ i7-6770HQ CPU @ 2.60GHz
  Memory: 31.1 GiB of RAM
  Graphics Processor: Mesa Intel® Iris® Pro Graphics 580

  ProblemType: Bug
  DistroRelease: Ubuntu 24.04
  Package: alsa-base 1.0.25+dfsg-0ubuntu7
  ProcVersionSignature: Ubuntu 6.8.0-79.79.1-lowlatency 6.8.12
  Uname: Linux 6.8.0-79-lowlatency x86_64
  ApportVersion: 2.28.1-0ubuntu3.8
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  nikola-santro   1869 F.... wireplumber
   /dev/snd/seq:        nikola-santro   1863 F.... pipewire
  CasperMD5CheckResult: pass
  CurrentDesktop: KDE
  Date: Fri Aug 29 23:20:24 2025
  InstallationDate: Installed on 2024-10-26 (307 days ago)
  InstallationMedia: Ubuntu-Studio 24.04.1 LTS "Noble Numbat" - Release amd64 (20240827)
  PackageArchitecture: all
  ProcEnviron:
   LANG=hr_HR.UTF-8
   LANGUAGE=
   PATH=(custom, no user)
   SHELL=/bin/bash
   XDG_RUNTIME_DIR=<set>
  PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
  SourcePackage: alsa-driver
  Symptom: audio
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/03/2016
  dmi.bios.release: 5.6
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: KYSKLi70.86A.0037.2016.0603.1032
  dmi.board.name: NUC6i7KYB
  dmi.board.vendor: Intel Corporation
  dmi.board.version: H90766-405
  dmi.chassis.type: 3
  dmi.chassis.vendor: Intel Corporation
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrKYSKLi70.86A.0037.2016.0603.1032:bd06/03/2016:br5.6:svn:pn:pvr:rvnIntelCorporation:rnNUC6i7KYB:rvrH90766-405:cvnIntelCorporation:ct3:cvr1.0:sku:

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