------------not live: tests as I remember: without nvidia 100-->ok 125,150 too slow
with nvidia 100--> too small 200-->too big enable fractional scaling 125-->200 150-->200 175 -->black (stop/start freesync from monitor, restored - maybe random behavior) 2nd try 100-->ok 125-->black (couldn't restore it, ctrl+alt+f1 & login = black again) unistall nvidia tested drivers, try nouveau after two changes, I could see ubuntu desktop became small or big inside my screen and around it I cound draw with the window I was holding with the mouse. If I put it inside ubuntu desktop area of my screen it works fine, outside (right column and down line) it just performs like windows xp windows when it stuck (never saw it again on ubuntu since 11.10 that I am using it). ------------live: test and keep these notes: install nvidia again reboot - 3rd try 100--> bigger desktop than my screen, needs to scroll (down or right) to see the rest 200--> the same enable fractional scaling (returns to 100 by itself) 150-->black (stop/start freesync from monitor, restored - maybe random behavior) 100 --> enable fractional-->200 by itself I repeat it, doesn't happen the second time 150-->black remove nvidia* through synaptic reboot 100-->ok 125,150,175 too slow 200-->ok install nvidia tested 100-->οκ 200-->οκ enable fractional scale-->turn to 100 itself 150-->black 125-->200 125(200) change back to 100 first 175-->black 200-->ok on 200, close fractional scale-->instead of return to 100 itself it doubles the area of the desktop (bigger than my real monitor area, so I have to scroll to see the rest of the desktop) 100-->100 with the same large desktop area issue deactivate fractional scale-->issue remain logout,logon--> 100 & ok -- 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: Confirmed Status in nvidia-graphics-drivers package in Ubuntu: Confirmed Bug description: 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 ProblemType: Bug DistroRelease: 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
