Prompted to authenticate every time external monitor is (un)plugged: "Authentication is required to create a color managed device"

[Julia Tuttle]

I have a Dell XPS 9310 laptop, a Kensington Thunderbolt docking station, and an HP Z32 monitor. The dock is connected to the laptop with a Thunderbolt cable, and the monitor is connected to the dock with a DisplayPort cable and a USB-C to DisplayPort adapter plugged into one of the downstream USB-C/Thunderbolt ports.

Recently, I've started getting spurious (to me) authentication prompts every time I (un)plug the monitor.

Observed behavior:

Every time I plug my external monitor into my laptop, I get prompted for my password with "Authentication is required to create a color managed device".

Every time I unplug it, I get prompted with "Authentication is required to remove a color managed device".

Expected behavior:

I do not need to enter my password when (un)plugging my monitor; any elevated privileges required are granted without my intervention.

Other notes:

I recently upgraded the firmware on the laptop, although Dell's changelog only listed a security fix.

I read the FindRightPackage wiki page, but I didn't see anything specifically about color management, and I'm not sure which package(s) are responsible for it, so I'm filing this under xorg generally.

ProblemType: Bug
DistroRelease: Ubuntu 23.04
Package: xorg 1:7.7+23ubuntu2
ProcVersionSignature: Ubuntu 6.2.0-25.25-generic 6.2.13
Uname: Linux 6.2.0-25-generic x86_64
ApportVersion: 2.26.1-0ubuntu2
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: pass
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Fri Jul 21 13:26:36 2023
DistUpgraded: 2023-04-30 14:34:46,328 DEBUG Running PostInstallScript: '/usr/lib/ubuntu-advantage/upgrade_lts_contract.py'
DistroCodename: lunar
DistroVariant: ubuntu
DkmsStatus:
 virtualbox/7.0.6, 6.2.0-24-generic, x86_64: installed
 virtualbox/7.0.6, 6.2.0-25-generic, x86_64: installed
ExtraDebuggingInterest: Yes, including running git bisection searches
GraphicsCard:
 Intel Corporation TigerLake-LP GT2 [Iris Xe Graphics] [8086:9a49] (rev 01) (prog-if 00 [VGA controller])
   Subsystem: Dell TigerLake-LP GT2 [Iris Xe Graphics] [1028:0991]
InstallationDate: Installed on 2021-05-26 (785 days ago)
InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420)
MachineType: Dell Inc. XPS 13 9310
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.2.0-25-generic root=UUID=372e27cc-d5a1-4f7c-9eee-93deead23f3c ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to lunar on 2023-04-30 (81 days ago)
dmi.bios.date: 06/08/2023
dmi.bios.release: 3.16
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 3.16.0
dmi.board.name: 0MK6WC
dmi.board.vendor: Dell Inc.
dmi.board.version: A01
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr3.16.0:bd06/08/2023:br3.16:svnDellInc.:pnXPS139310:pvr:rvnDellInc.:rn0MK6WC:rvrA01:cvnDellInc.:ct10:cvr:sku0991:
dmi.product.family: XPS
dmi.product.name: XPS 13 9310
dmi.product.sku: 0991
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.114-1
version.libgl1-mesa-dri: libgl1-mesa-dri 23.0.4-0ubuntu1~23.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx 23.0.4-0ubuntu1~23.04.1
version.xserver-xorg-core: xserver-xorg-core 2:21.1.7-1ubuntu3
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-3
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20210115-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-2build1