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
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