I'm guessing external monitors are probably controlled by the Nvidia GPU. In that case please try opening the Additional Drivers app and installing the official Nvidia driver.
** Summary changed: - On any external monitors, wayland session has a white block on most part of the screen. + [amdgpu] [nouveau] On any external monitors, wayland session has a white block on most part of the screen. ** Tags added: amdgpu nouveau ** Summary changed: - [amdgpu] [nouveau] On any external monitors, wayland session has a white block on most part of the screen. + [HP OMEN Laptop 15-en0xxx] [amdgpu] [nouveau] On any external monitors, wayland session has a white block on most part of the screen. -- 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/1905270 Title: [HP OMEN Laptop 15-en0xxx] [amdgpu] [nouveau] On any external monitors, wayland session has a white block on most part of the screen. Status in Mutter: Unknown Status in mutter package in Ubuntu: Incomplete Bug description: on any external monitors, wayland session has a white block on most part of the screen. ProblemType: Bug DistroRelease: Ubuntu 20.10 Package: mutter 3.38.1-1ubuntu1 ProcVersionSignature: Ubuntu 5.8.0-29.31-generic 5.8.14 Uname: Linux 5.8.0-29-generic x86_64 ApportVersion: 2.20.11-0ubuntu50.1 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME Date: Mon Nov 23 20:16:15 2020 InstallationDate: Installed on 2020-09-16 (67 days ago) InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Alpha amd64 (20200910) SourcePackage: mutter UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/mutter/+bug/1905270/+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
