As this issue is not specific to Ubuntu Studio, and since this has *not*
been verified by anybody but the bug reporter, I removed Ubuntu Studio
Developers from this bug and changed it to "New".
The lowlatency kernel has many, many more use cases than audio, hence it
is no longer developed or managed by the Ubuntu Studio team. This is an
Ubuntu kernel issue completely, and in no way should the Ubuntu Studio
Development team be involved here as that is too much workload on an
already strained and low-numbered team.
** Changed in: linux (Ubuntu)
Status: Confirmed => New
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You received this bug notification because you are a member of Kernel
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https://bugs.launchpad.net/bugs/1906913
Title:
IRQ conflict between Ethernet and USB with linux 5.4.0-56-lowlatency
kernel
Status in linux package in Ubuntu:
Confirmed
Bug description:
Package: linux-image-5.4.0.56.lowlatency / Focal Ubuntu Studio 20.04
WLan is working PCI Ethernet not.
[ 11.223573] genirq: Flags mismatch irq 18. 00010080 (enp3s1) vs. 00002080
(uhci_hcd:usb4)
[ 11.299519] genirq: Flags mismatch irq 16. 00010080 (ens32) vs. 00002080
(uhci_hcd:usb5)
Maybe this report can helpfull for bug 1906655. sounds similar for other
kernel.
---
ProblemType: Bug
ApportVersion: 2.20.11-0ubuntu27.13
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: oliver 2033 F.... pulseaudio
/dev/snd/controlC0: oliver 2033 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: XFCE
DistroRelease: Ubuntu 20.04
InstallationDate: Installed on 2020-04-01 (247 days ago)
InstallationMedia: Ubuntu-Studio 20.04.1 LTS "Focal Fossa" - Release amd64
(20200731)
MachineType: ECS G31T-M7
NonfreeKernelModules: nvidia_modeset nvidia
Package: linux (not installed)
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-56-lowlatency
root=UUID=d918f4d9-9814-4dbd-a547-02a0ddc59f12 ro quiet splash vt.handoff=1
ProcVersionSignature: Ubuntu 5.4.0-56.62-lowlatency 5.4.73
RelatedPackageVersions:
linux-restricted-modules-5.4.0-56-lowlatency N/A
linux-backports-modules-5.4.0-56-lowlatency N/A
linux-firmware 1.187.4
RfKill:
StagingDrivers: r8712u
Tags: focal staging
Uname: Linux 5.4.0-56-lowlatency x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm audio cdrom dialout dip lp lpadmin plugdev sambashare saned
scanner sudo video
_MarkForUpload: True
dmi.bios.date: 03/01/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 080014
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: G31T-M7
dmi.board.vendor: ECS
dmi.board.version: 1.0
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: ECS
dmi.chassis.version: 1.0
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr080014:bd03/01/2010:svnECS:pnG31T-M7:pvr1.0:rvnECS:rnG31T-M7:rvr1.0:cvnECS:ct3:cvr1.0:
dmi.product.family: To Be Filled By O.E.M.
dmi.product.name: G31T-M7
dmi.product.sku: To Be Filled By O.E.M.
dmi.product.version: 1.0
dmi.sys.vendor: ECS
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