[Bug 1813795] Re: Dell tablet crashes when plugged into docking station with 4.15.0-44 kernel

Looks like I'm affected by this issue with my Surface Pro 3 too.

https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1813796

--
You received this bug notification because you are subscribed to linux
in Ubuntu.
Matching subscriptions: Bgg, Bmail, Nb
https://bugs.launchpad.net/bugs/1813795

Title:
Dell tablet crashes when plugged into docking station with 4.15.0-44
kernel

Status in linux package in Ubuntu:
Confirmed

Bug description:
I have a Dell 5290 2-in-1 tablet that has been running Ubuntu 18.04
successfully for several months. Today I upgraded the kernel from
4.15.0-43 to 4.15.0-44. The tablet functions normally until it is
plugged into its docking station, then the screen freezes.

Technically, the screen flickers a few times, then goes blank, leaving
only the frozen mouse pointer. The system is still running, though as
I can ssh into my tablet. sudo reboot will not reboot the tablet, but
sudo reboot -f will.

When I force the tablet to load 4.15.0-43, the tablet functions
normally. i.e. even when I plug it into its docking station, it
continues to perform properly. It's only with 4.15.0-44 that it
freezes.

As you can see from the linked question and forum thread, this appears to be affecting many Dell tablets and laptops. It also appears clear that the bug is not present in 4.15.0-43.
---
ProblemType: Bug
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: rybu 1971 F.... pulseaudio
DistroRelease: Ubuntu 18.04
HibernationDevice: RESUME=UUID=35ab6535-9677-4ec9-9b70-33d75778947f
InstallationDate: Installed on 2018-11-09 (81 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
MachineType: Dell Inc. Latitude 5290 2-in-1
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.15.0-44-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=1
ProcVersionSignature: Ubuntu 4.15.0-44.47-generic 4.15.18
RelatedPackageVersions:
linux-restricted-modules-4.15.0-44-generic N/A
linux-backports-modules-4.15.0-44-generic N/A
linux-firmware 1.173.3
Tags: bionic
Uname: Linux 4.15.0-44-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers
_MarkForUpload: True
dmi.bios.date: 08/27/2018
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.4.3
dmi.board.name: 0M27Y3
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 32
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.4.3:bd08/27/2018:svnDellInc.:pnLatitude52902-in-1:pvr:rvnDellInc.:rn0M27Y3:rvrA00:cvnDellInc.:ct32:cvr:
dmi.product.family: Latitude
dmi.product.name: Latitude 5290 2-in-1
dmi.sys.vendor: Dell Inc.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1813795/+subscriptions