I've tried this from pop!_os 20.04, nVidia 2060 super GTX, 4k monitor. Starting off in 100% scaling, I select 125% scaling. Before enabling proposed, this resulted in the screen switching off.
Since enabling proposed and installing the updated packages, this now doesn't switch the screen off, but the behaviour is still not correct. I believe I'm now experiencing https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1875285 and https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1825593 (the latter of which is marked as fixed). -- 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/1873403 Title: [nvidia] Screen turns off when trying to set some fractional scaling values Status in mutter package in Ubuntu: Fix Released Status in nvidia-graphics-drivers package in Ubuntu: Confirmed Status in mutter source package in Focal: Fix Committed Status in nvidia-graphics-drivers source package in Focal: Confirmed Bug description: [ Impact ] When the nvidia driver is installed, the screen turns off when trying to set some fractional scaling values like 150%. And it stays off even after rebooting and logging in again. And from ssh I can see there's no current mode set anymore (just like in bug 1869750): $ xrandr Screen 0: minimum 8 x 8, current 960 x 600, maximum 16384 x 16384 DVI-I-0 disconnected (normal left inverted right x axis y axis) DVI-I-1 disconnected (normal left inverted right x axis y axis) DP-0 disconnected (normal left inverted right x axis y axis) DP-1 connected primary (normal left inverted right x axis y axis) 1920x1200 59.95 + 59.88 [ Test case ] In a Nvidia system: - From g-c-c enable fractional scaling - Set all the available fractional scaling values and ensure they work + In any case the screen should be turned off [ Regression potential ] Wrong screen size is set and panning might be enabled. --- ProblemType: BugDistroRelease: Ubuntu 20.04 Package: mutter 3.36.1-3ubuntu2 ProcVersionSignature: Ubuntu 5.4.0-24.28-generic 5.4.30 Uname: Linux 5.4.0-24-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 CasperMD5CheckResult: skip Date: Fri Apr 17 15:51:15 2020 InstallationDate: Installed on 2020-02-03 (73 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200124)SourcePackage: mutter UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1873403/+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
