I performed the firmware update as advised by Kai-Heng Feng and that has fixed the problem with 5.0.0-17.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1832091 Title: Kernel 5.0.0-16 & 5.0.0-17 USB-2 keyboard on USB-C dock malfunction Status in Linux: Confirmed Status in linux package in Ubuntu: Invalid Bug description: 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. To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1832091/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp