The video shows what happens when user is using 175% fractional scaling
and then deactivate Fractional Scaling:

- only the upper left part of the screen is used
- a popup asks if user wants to keep or revert the changes
- if user clicks Revert, it doesn't actually revert back to Fractional Scaling, 
but it remains in integer scaling, and the whole screen is being used.

** Attachment added: "lp1967450_fractional_scaling.mp4"
   
https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1967450/+attachment/5575453/+files/lp1967450_fractional_scaling.mp4

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https://bugs.launchpad.net/bugs/1967450

Title:
  When switching from 175% fractional scaling back to integer scaling,
  only a quarter of the screen is used

Status in gnome-shell package in Ubuntu:
  New

Bug description:
  Steps
  =====

  - In Settings > Display, activate Fractional Scaling, and set it to 175%.
  - Deactivate fractional scaling and press Apply

  Expected results
  ================

  The screen goes back to 200% integer scaling

  
  Actual results
  ==============

  Only the upper left quarter of the screen is being used.

  Workaround
  ==========

  After pressing Apply, a popup asks if we want to keep changes or
  revert them.

  Pressing "Revert" does not revert anything, but actually updates the
  screen to use the full screen instead of just the upper left section,
  while remaining in 200% integer scaling!

  
  Information
  ===========

  Version: Ubuntu Jammy Jellyfish (development branch) [Beta image]
  Release: 22.04

  Device: Dell Precision 7760 with Nvidia GPU
  CID: 202103-28858

  Third party software installed during installation

  Wayland in use.

  ii linux-generic-hwe-20.04 5.15.0.23.25 amd64 Complete Generic Linux kernel 
and headers
  ii linux-headers-5.15.0-23 5.15.0-23.23 all Header files related to Linux 
kernel version 5.15.0
  ii linux-headers-5.15.0-23-generic 5.15.0-23.23 amd64 Linux kernel headers 
for version 5.15.0 on 64 bit x86 SMP
  ii linux-headers-generic-hwe-20.04 5.15.0.23.25 amd64 Generic Linux kernel 
headers
  ii linux-image-5.15.0-23-generic 5.15.0-23.23 amd64 Signed kernel image 
generic
  ii linux-image-generic-hwe-20.04 5.15.0.23.25 amd64 Generic Linux kernel image
  ii linux-modules-5.15.0-23-generic 5.15.0-23.23 amd64 Linux kernel extra 
modules for version 5.15.0 on 64 bit x86 SMP
  ii linux-modules-extra-5.15.0-23-generic 5.15.0-23.23 amd64 Linux kernel 
extra modules for version 5.15.0 on 64 bit x86 SMP
  ii linux-modules-nvidia-510-5.15.0-23-generic 5.15.0-23.23+1 amd64 Linux 
kernel nvidia modules for version 5.15.0-23
  ii linux-modules-nvidia-510-generic-hwe-20.04 5.15.0-23.23+1 amd64 Extra 
drivers for nvidia-510 for the generic-hwe-20.04 flavour
  ii linux-objects-nvidia-510-5.15.0-23-generic 5.15.0-23.23+1 amd64 Linux 
kernel nvidia modules for version 5.15.0-23 (objects)
  ii linux-signatures-nvidia-5.15.0-23-generic 5.15.0-23.23+1 amd64 Linux 
kernel signatures for nvidia modules for version 5.15.0-23-generic

  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: gnome-shell 42~beta-1ubuntu3
  ProcVersionSignature: Ubuntu 5.15.0-23.23-generic 5.15.27
  Uname: Linux 5.15.0-23-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.11-0ubuntu79
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Apr  1 10:51:09 2022
  DisplayManager: gdm3
  GsettingsChanges:
   b'org.gnome.shell' b'welcome-dialog-last-shown-version' b"'42.beta'"
   b'org.gnome.desktop.input-sources' b'sources' b"[('xkb', 'us')]"
   b'org.gnome.desktop.interface' b'gtk-im-module' b"'gtk-im-context-simple'"
   b'org.gnome.desktop.privacy' b'report-technical-problems' b'true'
   b'org.gnome.mutter' b'experimental-features' b"['scale-monitor-framebuffer']"
  InstallationDate: Installed on 2022-04-01 (0 days ago)
  InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Beta amd64 
(20220329.1)
  RelatedPackageVersions: mutter-common 42~beta-1ubuntu2
  SourcePackage: gnome-shell
  UpgradeStatus: No upgrade log present (probably fresh install)

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