USB-related kernel problem with scanner

[Volker Wysk]

My Canon CanoScan LiDE 220 scanner had worked reasonably well, until a
new kernel has been installed. It went into stop-and-go mode, and made
funny noises. This is worse in higher resolutions.

I had a notion that it might be a problem with USB, which in turn resides in the
kernel. I was right. The most current kernel, which has been installed, was version
4.15.0-50. The previous one (which still is available via GRUB) was version 4.15.0-48.
I tried that version, and the problem went away.

I'm using Kubuntu 18.04.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-48-generic 4.15.0-48.51
ProcVersionSignature: Ubuntu 4.15.0-48.51-generic 4.15.18
Uname: Linux 4.15.0-48-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.6
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: v 1488 F.... pulseaudio
 /dev/snd/controlC1: v 1488 F.... pulseaudio
CurrentDesktop: KDE
Date: Mon Jun 3 21:34:57 2019
HibernationDevice: RESUME=UUID=94cdbaee-30e1-44b4-aa58-3de0b89bddf3
InstallationDate: Installed on 2018-10-05 (241 days ago)
InstallationMedia: Kubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
IwConfig:
 enp2s0 no wireless extensions.

 lo no wireless extensions.
MachineType: System manufacturer System Product Name
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-48-generic root=/dev/mapper/kubuntu--vg-root ro quiet splash vt.handoff=1
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
 linux-restricted-modules-4.15.0-48-generic N/A
 linux-backports-modules-4.15.0-48-generic N/A
 linux-firmware 1.173.6
RfKill:

SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/14/2012
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1503
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: M5A78L LE
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1503:bd11/14/2012:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM5A78LLE:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.family: To Be Filled By O.E.M.
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.

[Kai-Heng Feng (kaihengfeng)]

Does kernel parameter "mds=off" help?

[Volker Wysk (dost)]

Am Tue, 04 Jun 2019 05:34:25 -0000
schrieb Kai-Heng Feng <email address hidden>:

> Does kernel parameter "mds=off" help?

Yes, it does!

Bye,
Volker Wysk

[Volker Wysk (dost)]

As of 6.6.2019, it works with the kernel version 4.15.0-51, which is new to (K)Ubuntu.