Public bug reported:
Working on fully updated focal fossy
Procedure to make bug happen:
1. open gnome control center and select screen (skærme in danish)
2. click the "fractional scaling" switch
3. select 150% scaling and click the green button at top right
4. Result is a blank screen and the monitor going into a power save
state
A reboot doesn't help. The login screen appears, when I log in the screen goes
blank again and the monitor power save kicks in.
If I select the "unity" environment, the display does work.
If I do this on the command line "gsettings set org.gnome.mutter
experimental-features ['']", I can log in as usual and fractional
scaling has been turned off.
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: gnome-control-center 1:3.36.1-1ubuntu3
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
CurrentDesktop: ubuntu:GNOME
Date: Sat Apr 4 12:11:39 2020
InstallationDate: Installed on 2018-01-14 (810 days ago)
InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=da_DK.UTF-8
SHELL=/bin/bash
SourcePackage: gnome-control-center
UpgradeStatus: Upgraded to focal on 2020-04-03 (0 days ago)
** Affects: gnome-control-center (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug focal third-party-packages
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https://bugs.launchpad.net/bugs/1870758
Title:
Screen scaling 150% results in monitor power save state
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