Public bug reported:
I have 2 4k monitors and a 3rd with a lower res. When changing the scaling of
the 4k monitors to 150 - 200%, they just turn off . This used to work on 19.01.
If I set them to 125, then I get one big virtual monitor that I can scroll with
the mouse and the screen positions change. When putting them back in the
correct place, the scaled monitors turn off again.
PS. I use Nvidia drivers, so may be related to
https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1873403 .
** Affects: gnome-shell (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-collected focal
** Tags added: apport-collected focal
** Description changed:
I have 2 4k monitors and a 3rd with a lower res. When changing the scaling of
the 4k monitors to 150 - 200%, they just turn off . This used to work on 19.01.
If I set them to 125, then I get one big virtual monitor that I can scroll with
the mouse and the screen positions change. When putting them back in the
correct place, the scaled monitors turn off again.
PS. I use Nvidia drivers, so may be related to #873403.
+ ---
+ ProblemType: Bug
+ ApportVersion: 2.20.11-0ubuntu27
+ Architecture: amd64
+ CasperMD5CheckResult: skip
+ CurrentDesktop: ubuntu:GNOME
+ DisplayManager: gdm3
+ DistroRelease: Ubuntu 20.04
+ InstallationDate: Installed on 2019-12-08 (145 days ago)
+ InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
+ NonfreeKernelModules: nvidia_modeset nvidia
+ Package: gnome-shell 3.36.1-5ubuntu1
+ PackageArchitecture: amd64
+ RelatedPackageVersions: mutter-common 3.36.1-3ubuntu3
+ Tags: focal
+ Uname: Linux 5.7.0-050700rc1-generic x86_64
+ UpgradeStatus: Upgraded to focal on 2020-04-24 (6 days ago)
+ UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo vboxusers
+ _MarkForUpload: True
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https://bugs.launchpad.net/bugs/1876227
Title:
ubuntu 20.04 monitor scaling broken
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