[Bug 2171324] Re: snd-usb-audio: PreSonus StudioLive 16.0.2 USB stays at 44.1 kHz after another program opens it at 44.1 kHz (needs power cycle)

Thank you very much for reporting this issue. ** Changed in: linux (Ubuntu) Importance: Undecided => Medium -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/2171324 Title: snd-usb-audio: PreSonus StudioLive 16.0.2 USB stays at 44.1 kHz after another program opens it at 44.1 kHz (needs power cycle) Status in linux package in Ubuntu: New Bug description: Subject: snd-usb-audio: PreSonus StudioLive 16.0.2 USB stays at 44.1 kHz after another program opens it at 44.1 kHz (needs power cycle) Device: PreSonus StudioLive 16.0.2 USB (idVendor=194f, idProduct=0901), USB audio, 18 capture channels, rates 44100/48000. System: Ubuntu 24.04 (MATE), kernel 6.8.0-146-generic, PipeWire 1.0.5. Hardware: MSI MPG Z490 Gaming Plus, xHCI controller. Problem: When PipeWire is not holding the device open (idle), any program that opens it directly at 44100 Hz leaves it at 44.1 kHz. Everything on the system then plays about 1.45 semitones lower and slower. Opening it again at 48000 Hz does not fix it. Re-enumerating the device does not fix it (echo 0/1 > /sys/bus/usb/devices/1-1/authorized). Only a power cycle of the console restores 48 kHz. Reproduce (device idle, a video playing through the console at 48 kHz): arecord -D plughw:CARD=USB,DEV=0 -r 44100 -f S16_LE -c 2 -d 2 /dev/null Pitch drops right away. /proc/asound/USB/stream0 then shows "Momentary freq = 44099 Hz" on the playback endpoint. usbmon shows a single SET_CUR (clock) request to 44100 Hz, with no request back to 48000 Hz afterwards: Co:1:041:0 s 21 01 0100 2900 0004 4 = 44ac0000 Audacity 4 triggers the same thing when it probes the sound cards at startup (strace shows it opening /dev/snd/pcmC4D0c and pcmC4D0p). Audacity causes this issue at start. Questions: 1. Is this a console firmware behaviour or a snd-usb-audio issue? 2. Did earlier kernels reset the clock differently? (My old Ubuntu 20.04 setup with PulseAudio did not show it.) 3. Is a quirk for this device appropriate? ╭─(skyern@skyern-desktop:~)─(dim. 18 oct. 26 • 12:47:32) ╰──▸ sudo /usr/sbin/alsa-info.sh --no-upload lsusb -v -d 194f:0901 > ~/lsusb.txt 2>&1 uname -r [sudo] Mot de passe de skyern : sudo: /usr/sbin/alsa-info.sh : commande introuvable 6.8.0-147-generic ╭─(skyern@skyern-desktop:~)─(dim. 18 oct. 26 • 12:48:03) ╰──▸ cat /proc/version_signature > version.log ╭─(skyern@skyern-desktop:~)─(dim. 18 oct. 26 • 12:48:04) ╰──▸ sudo lspci -vnvn > lspci-vnvn.log pcilib: sysfs_read_vpd: read failed: No such device ProblemType: Bug DistroRelease: Ubuntu 24.04 Package: linux-image-6.8.0-147-generic 6.8.0-147.147 ProcVersionSignature: Ubuntu 6.8.0-147.147-generic 6.8.12 Uname: Linux 6.8.0-147-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.28.3-0ubuntu0.1 Architecture: amd64 CasperMD5CheckResult: unknown CurrentDesktop: MATE Date: Sun Oct 18 12:45:21 2026 HibernationDevice: RESUME=UUID=d89378d1-1a70-4271-9daa-987ddf5435be InstallationDate: Installed on 2016-09-30 (3670 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) MachineType: Micro-Star International Co., Ltd. MS-7C75 ProcFB: 0 nvidia-drmdrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-147-generic root=UUID=6055cc62-8cbc-4e99-b10c-2632d39bf84a ro quiet splash nvidia-drm.modeset=1 scsi_mod.dev_flags_ignore=1 libata.noacpi=1 vt.handoff=7 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-6.8.0-147-generic N/A linux-backports-modules-6.8.0-147-generic N/A linux-firmware 20240318.git3b128b60.0ubuntu3.1 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: Upgraded to noble on 2026-10-12 (6 days ago) dmi.bios.date: 06/09/2022 dmi.bios.release: 5.17 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: A.C0 dmi.board.asset.tag: Default string dmi.board.name: MPG Z490 GAMING PLUS (MS-7C75) dmi.board.vendor: Micro-Star International Co., Ltd. dmi.board.version: 2.0 dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Micro-Star International Co., Ltd. dmi.chassis.version: 2.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrA.C0:bd06/09/2022:br5.17:svnMicro-StarInternationalCo.,Ltd.:pnMS-7C75:pvr2.0:rvnMicro-StarInternationalCo.,Ltd.:rnMPGZ490GAMINGPLUS(MS-7C75):rvr2.0:cvnMicro-StarInternationalCo.,Ltd.:ct3:cvr2.0:skuDefaultstring: dmi.product.family: Default string dmi.product.name: MS-7C75 dmi.product.sku: Default string dmi.product.version: 2.0 dmi.sys.vendor: Micro-Star International Co., Ltd. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2171324/+subscriptions