[Bug 1889342] Re: Thunderbolt Dock Loses Monitors

See kernel log with the 5.10.0-4008-oem kernel. Didn't work with either
USB-C port.

** Attachment added: "kern.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1889342/+attachment/5451633/+files/kern.log

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https://bugs.launchpad.net/bugs/1889342

Title:
Thunderbolt Dock Loses Monitors

Status in linux package in Ubuntu:
In Progress

Bug description:
After a suspend or locking the only way to regain external monitors is
to unplug and replug the thunderbolt dock back in.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-image-5.4.0-42-generic 5.4.0-42.46
ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44
Uname: Linux 5.4.0-42-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.4
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: john 2682 F.... pulseaudio
/dev/snd/controlC0: john 2682 F.... pulseaudio
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Wed Jul 29 00:22:26 2020
DistributionChannelDescriptor:
# This is the distribution channel descriptor for the OEM CDs
# For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
canonical-oem-somerville-focal-amd64-20200502-85
InstallationDate: Installed on 2020-07-13 (15 days ago)
InstallationMedia: Ubuntu 20.04 "Focal" - Build amd64 LIVE Binary 20200502-05:58
MachineType: Dell Inc. XPS 13 9300
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-42-generic root=UUID=5e141eb0-e03b-4c39-b826-f94e0d2715ea ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.4.0-42-generic N/A
linux-backports-modules-5.4.0-42-generic N/A
linux-firmware 1.187.2
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/08/2020
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.0.11
dmi.board.name: 0WX9VX
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.0.11:bd05/08/2020:svnDellInc.:pnXPS139300:pvr:rvnDellInc.:rn0WX9VX:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: XPS
dmi.product.name: XPS 13 9300
dmi.product.sku: 096D
dmi.sys.vendor: Dell Inc.

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