I also experience this issue. Was not there in 19.10 for me either. It's ONLY when setting one of the monitors to portrait mode.
Currently I have to use a workaround, running ARandR or "nvidia x server settings" after login to set the displays. But I can't save the settings to make them persistent. It would be nice to be able to use the monitor.xml to make the settings persistent. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1874217 Title: Dual monitor setup with secondary monitor in portrait-right mode cause tiled windows to occupy 1.5 monitors Status in gnome-shell package in Ubuntu: Confirmed Status in mutter package in Ubuntu: Confirmed Bug description: I will provide below a screen capture. I think this bug is related to this one : https://bugs.launchpad.net/dash-to-dock/+bug/1869571 I'm on Ubuntu 20.04 AMD64 fully up to date and freshly rebooted. I use dual screen : the main screen is on the left side (32"), the secondary screen (19") is at right and in portrait mode (rotated right). The window are improperly growed : they extend from full main screen to half the "witdh" of the secondary screen. Additionnally, the « pop-up » menus (eg. from settings) do not appear at the right place (see screen capture in comment). The problem disappears if I revert the orientation of secondary screen from « portrait turned right » to « landscape ». I do have gnome-shell-extension-ubuntu-dock in version 67ubuntu20.04.5, but still got the problem. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: gnome-shell 3.36.1-5ubuntu1 ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30 Uname: Linux 5.4.0-26-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Wed Apr 22 11:11:25 2020 DisplayManager: gdm3 InstallationDate: Installed on 2020-04-19 (2 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200402) ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=fr_FR.UTF-8 SHELL=/bin/bash RelatedPackageVersions: mutter-common 3.36.1-3ubuntu3 SourcePackage: gnome-shell UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1874217/+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