*** 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). -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to mutter in Ubuntu. 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) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1870758/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp