Public bug reported:
During a recent kernel update, my Thunderbolt dock (a Thinkpad
Thunderbolt 3 Gen 2) stopped working. My computer (A Lenovo Thinkpad
P50) still responds to the mouse and keyboard connected to the dock, but
my two displays (connected over DisplayPort) don't get any signal. Also,
the Displays settings menu only lists the display of the laptop itself.
I'm running Ubuntu 22.04.1 LTS, at kernel version 5.15.0-52-generic
which isn't working, just as the previous version (5.15.0-50-generic)
also isn't working. Booting into 5.15.0-48-generic makes the displays
work again. I have a dual boot setup with Windows 10 on the other disk,
which never stopped working. From Windows, I also made sure that the
firmware of the dock is updated to the latest version.
I tried unplugging and re-plugging the USB-C cable, which doesn't do
anything, just as restarting with the cable plugged in doesn't work
either. So far, the only way I've found to make it work is to boot into
a previous version of the kernel.
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: bolt 0.9.2-1
ProcVersionSignature: Ubuntu 5.15.0-53.59-generic 5.15.64
Uname: Linux 5.15.0-53-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.1
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Fri Nov 18 19:39:00 2022
InstallationDate: Installed on 2022-03-02 (260 days ago)
InstallationMedia: Ubuntu 21.10 "Impish Indri" - Release amd64 (20211012)
ProcEnviron:
LANGUAGE=en_US:en
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
RebootRequiredPkgs: Error: path contained symlinks.
SourcePackage: bolt
UpgradeStatus: Upgraded to jammy on 2022-04-30 (202 days ago)
** Affects: bolt (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug jammy wayland-session
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https://bugs.launchpad.net/bugs/1997110
Title:
Displays connected through Thunderbolt dock no longer working
Status in bolt package in Ubuntu:
New
Bug description:
During a recent kernel update, my Thunderbolt dock (a Thinkpad
Thunderbolt 3 Gen 2) stopped working. My computer (A Lenovo Thinkpad
P50) still responds to the mouse and keyboard connected to the dock,
but my two displays (connected over DisplayPort) don't get any signal.
Also, the Displays settings menu only lists the display of the laptop
itself.
I'm running Ubuntu 22.04.1 LTS, at kernel version 5.15.0-52-generic
which isn't working, just as the previous version (5.15.0-50-generic)
also isn't working. Booting into 5.15.0-48-generic makes the displays
work again. I have a dual boot setup with Windows 10 on the other
disk, which never stopped working. From Windows, I also made sure that
the firmware of the dock is updated to the latest version.
I tried unplugging and re-plugging the USB-C cable, which doesn't do
anything, just as restarting with the cable plugged in doesn't work
either. So far, the only way I've found to make it work is to boot
into a previous version of the kernel.
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: bolt 0.9.2-1
ProcVersionSignature: Ubuntu 5.15.0-53.59-generic 5.15.64
Uname: Linux 5.15.0-53-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.1
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Fri Nov 18 19:39:00 2022
InstallationDate: Installed on 2022-03-02 (260 days ago)
InstallationMedia: Ubuntu 21.10 "Impish Indri" - Release amd64 (20211012)
ProcEnviron:
LANGUAGE=en_US:en
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
RebootRequiredPkgs: Error: path contained symlinks.
SourcePackage: bolt
UpgradeStatus: Upgraded to jammy on 2022-04-30 (202 days ago)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/bolt/+bug/1997110/+subscriptions
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