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 Ubuntu Desktop Bugs, 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. To manage notifications about this bug go to: https://bugs.launchpad.net/mutter/+bug/1905270/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
