Kernel 5.0.0-16 & 5.0.0-17 USB-2 keyboard on USB-C dock malfunction

[Mike Rans]

Upgrading to kernel package linux-image-5.0.0-16-generic causes the keyboard which is a USB 2 device connected to a USB C hub on my Dell XPS 13 to behave erratically. The previous kernel (linux-image-5.0.0-15-generic) doesn't have this problem. (The keyboard is fine when plugged directly into the laptop's USB rather than into the USB C hub on 5.0.0-16, so it seems to be a USB C problem in 5.0.0-16).

Ubuntu 5.0.0-16.17~18.04.1-generic 5.0.8
---
ProblemType: Bug
ApportVersion: 2.20.9-0ubuntu7.6
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: mcarans 3298 F.... pulseaudio
CurrentDesktop: X-Cinnamon
DistroRelease: Linux Mint 19.1
HibernationDevice: RESUME=UUID=7c0ba900-f99e-46fe-9dd8-7ff287d1c43f
InstallationDate: Installed on 2017-12-08 (547 days ago)
InstallationMedia: Linux Mint 18.3 "Sylvia" - Release amd64 20171124
MachineType: Dell Inc. XPS 13 9360
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.0.0-16-generic root=UUID=b6c8e517-c0ed-4ec5-a257-85c0cac387b4 ro deadline quiet splash vt.handoff=1
ProcVersionSignature: Ubuntu 5.0.0-16.17~18.04.1-generic 5.0.8
RelatedPackageVersions:
 linux-restricted-modules-5.0.0-16-generic N/A
 linux-backports-modules-5.0.0-16-generic N/A
 linux-firmware 1.173.6
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: yes
  Hard blocked: no
Tags: tessa
Uname: Linux 5.0.0-16-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip docker lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 01/25/2018
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 2.5.1
dmi.board.name: 0TPN17
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr2.5.1:bd01/25/2018:svnDellInc.:pnXPS139360:pvr:rvnDellInc.:rn0TPN17:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 13 9360
dmi.product.sku: 082A
dmi.sys.vendor: Dell Inc.

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

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1832091

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Mike Rans (rans)]

apport information

[Mike Rans (rans)]

apport information

[Mike Rans (rans)]

apport information

[Mike Rans (rans)]

I've set to confirmed as per the Ubuntu Kernel Bot's advice. Let me know if I need to provide anything else.

[Mike Rans (rans)]

The problem persists in 5.0.0-17 so I have updated the title accordingly.

[rans (rans-linux-kernel-bugs)]

Upgrading to kernel package linux-image-5.0.0-16-generic and linux-image-5.0.0-17-generic cause the keyboard which is a USB 2 device connected to a USB C hub on my Dell XPS 13 to behave erratically. The keyboard is fine when plugged directly into the laptop's USB rather than into the USB C hub on 5.0.0-16, so it seems to be a USB-C problem in 5.0.0-16.

The previous kernel (linux-image-5.0.0-15-generic) doesn't have this problem.

[greg (greg-linux-kernel-bugs)]

On Fri, Jun 21, 2019 at 07:34:44AM +0000, <email address hidden> wrote:
> https://bugzilla.kernel.org/show_bug.cgi?id=203945
>
> Bug ID: 203945
> Summary: USB-2 keyboard on USB-C dock malfunction
> Product: Drivers
> Version: 2.5
> Kernel Version: 5.0.0-16-generic

All USB bugs should be sent to the <email address hidden> mailing
list, and not entered into bugzilla. Please bring this issue up there,
if it is still a problem in the latest kernel release.

[Kai-Heng Feng (kaihengfeng)]

1) Since the device is connect to Thunderbolt port, Please make sure BIOS and TBT firmware are up-to-date:
$ fwupdmgr refresh
$ fwupdmgr update

2) Please test latest mainline kernel:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.2-rc5/

[rans (rans-linux-kernel-bugs)]

I will close as a firmware update has resolved the issue.

[Mike Rans (rans)]

I performed the firmware update as advised by Kai-Heng Feng and that has fixed the problem with 5.0.0-17.

[Mike Rans (rans)]

Setting to invalid as firmware update fixed the problem