*** This bug is a duplicate of bug 1869750 ***
https://bugs.launchpad.net/bugs/1869750
Nvidia 1080 with two 4K screens. After updating to 440 i only have lost
fraction scaling, gnome settings only shows 100,200,300,400. The old
experimental flag does not work (xorg).
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https://bugs.launchpad.net/bugs/1870758
Title:
[nvidia] Display scaling results in a blank screen (power save state)
Status in mutter package in Ubuntu:
Confirmed
Status in nvidia-graphics-drivers-440 package in Ubuntu:
Confirmed
Bug description:
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)
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