Does latest mainline kernel [0] have the issue?
If it does, then we need to bisect between 4.15.0-{43,44}.
[0] https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.1-rc2/
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https://bugs.launchpad.net/bugs/1820409
Title:
Audio stutter after update
Status in linux package in Ubuntu:
Confirmed
Bug description:
After some update:
Audio stutters in VLC
Video and audio stutters in Youtube
I think cpu usage might be bigger in VLC too, over 20% vs. below 20%
earlier (one thread gets full 100%?)
Stuttering kernel at the moment is 4.15.0-46-generic.
Kernel version 4.15.0-43-generic definitely worked good.
Cant remember if i could get slight stutter from previous version version -45.
Tried also lowlatency and 4.18 kernel, bad stuttering in those.
(Distro is Lubuntu)
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-46-generic 4.15.0-46.49
ProcVersionSignature: Ubuntu 4.15.0-46.49-generic 4.15.18
Uname: Linux 4.15.0-46-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version
k4.15.0-46-generic.
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 1: PCH [HDA Intel PCH], device 0: CX20751/2 Analog [CX20751/2 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: meie 855 F.... pulseaudio
/dev/snd/controlC1: meie 855 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'HDMI'/'HDA Intel HDMI at 0xf711c000 irq 50'
Mixer name : 'Intel Broadwell HDMI'
Components : 'HDA:80862808,80860101,00100000'
Controls : 35
Simple ctrls : 5
Card1.Amixer.info:
Card hw:1 'PCH'/'HDA Intel PCH at 0xf7118000 irq 47'
Mixer name : 'Conexant CX20751/2'
Components : 'HDA:14f1510f,1043181d,00100100'
Controls : 20
Simple ctrls : 9
CurrentDesktop: LXDE
Date: Sat Mar 16 18:02:18 2019
InstallationDate: Installed on 2018-07-04 (255 days ago)
InstallationMedia: Lubuntu 18.04 LTS "Bionic Beaver" - Release amd64
(20180426)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 064e:9700 Suyin Corp. Asus Integrated Webcam
Bus 001 Device 002: ID 8087:0a2a Intel Corp.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: ASUSTeK COMPUTER INC. UX305FA
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-46-generic
root=UUID=a032fe2a-8284-47a9-a0d1-cfa1f01a5812 ro quiet splash vt.handoff=1
RelatedPackageVersions:
linux-restricted-modules-4.15.0-46-generic N/A
linux-backports-modules-4.15.0-46-generic N/A
linux-firmware 1.173.3
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/19/2015
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: UX305FA.210
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: UX305FA
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrUX305FA.210:bd05/19/2015:svnASUSTeKCOMPUTERINC.:pnUX305FA:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnUX305FA:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.family: UX
dmi.product.name: UX305FA
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.
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