Comment 3 for bug 1971189

 Yes, that seemed to resolve the issue, Thanks a lot!

    On Monday, May 2, 2022, 08:20:49 PM PDT, Daniel van Vugt <email address hidden> wrote:

 This sounds like bug 1970031. Please try:

  Settings > Colour > YOUR MONITOR = OFF

** Package changed: xorg (Ubuntu) => ubuntu

** Changed in: ubuntu
      Status: New => Incomplete

** Tags added: gamma

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Title:
  External monitor display pink coloration in grayscale (HDMI)

Status in Ubuntu:
  Incomplete

Bug description:
  Two days ago I upgraded to 22.04 LTS.
  My laptop display works fine but my external monitor(HDMI port) has strong pink coloration in grey scale / white areas of display. I put up a picture of a NTSC colorbars. On the laptop display it is correct. When I slide it to the external monitor it has distinct pink color in the 70% grey scale bar.The white bar is correct as are the cyan, blue , yellow, red, etc. The pluge (program lineup guide) black bars display correctly, thus no contrast problem. The only visible problem is the pink in the 70% bars.
  I suspected the monitor might be at fault, but I rebooted into my Windblows 11 (dual boot) both displays were again correct, as they had been in Ubuntu until the Upgrade to 22.04.

  That is the extent of by ability to analyze the problem. I suspect
  something in the HDMI but have no way to check further.

  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: xorg 1:7.7+23ubuntu2
  ProcVersionSignature: Ubuntu 5.15.0-27.28-generic 5.15.30
  Uname: Linux 5.15.0-27-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  .proc.driver.nvidia.capabilities.gpu0: Error: path was not a regular file.
  .proc.driver.nvidia.capabilities.mig: Error: path was not a regular file.
  .proc.driver.nvidia.gpus.0000.01.00.0: Error: path was not a regular file.
  .proc.driver.nvidia.registry: Binary: ""
  .proc.driver.nvidia.suspend: suspend hibernate resume
  .proc.driver.nvidia.suspend_depth: default modeset uvm
  .proc.driver.nvidia.version:
  NVRM version: NVIDIA UNIX x86_64 Kernel Module  510.60.02  Wed Mar 16 11:24:05 UTC 2022
  GCC version:  gcc version 11.2.0 (Ubuntu 11.2.0-19ubuntu1)
  ApportVersion: 2.20.11-0ubuntu82
  Architecture: amd64
  BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
  CasperMD5CheckResult: unknown
  CompositorRunning: None
  CurrentDesktop: ubuntu:GNOME
  Date: Mon May  2 11:24:24 2022
  DistUpgraded: 2022-05-01 05:38:59,932 DEBUG Running PostInstallScript: '/usr/lib/ubuntu-advantage/upgrade_lts_contract.py'
  DistroCodename: jammy
  DistroVariant: ubuntu
  DkmsStatus:
  nvidia/510.60.02, 5.13.0-40-generic, x86_64: installed
  nvidia/510.60.02, 5.15.0-27-generic, x86_64: installed
  ExtraDebuggingInterest: No
  GraphicsCard:
  Intel Corporation CoffeeLake-H GT2 [UHD Graphics 630] [8086:3e9b] (prog-if 00 [VGA controller])
    Subsystem: ASUSTeK Computer Inc. CoffeeLake-H GT2 [UHD Graphics 630] [1043:1041]
    Subsystem: ASUSTeK Computer Inc. GP107M [GeForce GTX 1050 Ti Mobile] [1043:1041]
  InstallationDate: Installed on 2020-08-07 (633 days ago)
  InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
  MachineType: ASUSTeK COMPUTER INC. Strix 17 GL703GE
  ProcEnviron:
  TERM=xterm-256color
  PATH=(custom, no user)
  XDG_RUNTIME_DIR=<set>
  LANG=en_US.UTF-8
  SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.15.0-27-generic root=UUID=28e56048-56da-4e38-84fe-3a43c671badb ro quiet splash vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: Upgraded to jammy on 2022-05-01 (1 days ago)
  dmi.bios.date: 06/19/2020
  dmi.bios.release: 5.13
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: GL703GE.320
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: GL703GE
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: No  Asset  Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: ASUSTeK COMPUTER INC.
  dmi.chassis.version: 1.0
  dmi.ec.firmware.release: 1.14
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrGL703GE.320:bd06/19/2020:br5.13:efr1.14:svnASUSTeKCOMPUTERINC.:pnStrix17GL703GE:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnGL703GE:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:sku:
  dmi.product.family: Strix
  dmi.product.name: Strix 17 GL703GE
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.
  version.compiz: compiz N/A
  version.libdrm2: libdrm2 2.4.110-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 22.0.1-1ubuntu2
  version.libgl1-mesa-glx: libgl1-mesa-glx 22.0.1-1ubuntu2
  version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
  version.xserver-xorg-core: xserver-xorg-core 2:21.1.3-2ubuntu2
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2build3
  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

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