I have the same issue as thor27
$ sudo lshw -C display
*-display
description: VGA compatible controller
product: GK110B [GeForce GTX 780 Ti]
vendor: NVIDIA Corporation
physical id: 0
bus info: pci@0000:01:00.0
version: a1
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress vga_controller bus_master cap_list rom
configuration: driver=nvidia latency=0
resources: irq:57 memory:de000000-deffffff memory:d0000000-d7ffffff
memory:d8000000-d9ffffff ioport:e000(size=128) memory:c0000-dffff
$ dpkg -l | grep mutter
ii gir1.2-mutter-6:amd64 3.36.3-0ubuntu0.20.04.1.nv2
amd64 GObject introspection data for Mutter
ii libmutter-6-0:amd64 3.36.3-0ubuntu0.20.04.1.nv2
amd64 window manager library from the Mutter window manager
ii mutter 3.36.3-0ubuntu0.20.04.1.nv2
amd64 Example window manager using GNOME's window manager library
ii mutter-common 3.36.3-0ubuntu0.20.04.1.nv2
all shared files for the Mutter window manager
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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to gnome-control-center in Ubuntu.
https://bugs.launchpad.net/bugs/1870736
Title:
[nvidia] Screen scaling 125% gives 200%
Status in gnome-control-center package in Ubuntu:
Confirmed
Status in mutter package in Ubuntu:
Confirmed
Bug description:
Procedure used:
1.
Fully updated system via apt update && apt upgrade
2.
Select the screen setup in gnome control center
3.
Click the "Fractional scaling" toggle
4.
Select 125% and click the green "use" button top right (it says "Anvend" in
dansih)
5.
Observe that the window has grown a lot, click the "use new settings" button
6.
The window tells me, I am at 200% scaling. The "200%" option is now
highlighted.
7.
Switch back to 100% and file this bug.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubuntu-release-upgrader-core 1:20.04.16
ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27
Uname: Linux 5.4.0-21-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu22
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Sat Apr 4 09:42:34 2020
InstallationDate: Installed on 2018-01-14 (810 days ago)
InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64
(20170801)
PackageArchitecture: all
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=da_DK.UTF-8
SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
Symptom: release-upgrade
UpgradeStatus: Upgraded to focal on 2020-04-03 (0 days ago)
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