Thanks. It looks like Xorg is the cause of this problem and Wayland (used on the login screen) works better. Please try selecting 'Ubuntu on Wayland' on the login screen (button at the bottom right) before entering your password and tell us if that improves the situation.
** Summary changed: - dual monitor display not working after login + [GM965] dual monitor display not working after login -- 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/1889295 Title: [GM965] dual monitor display not working after login Status in gnome-shell package in Ubuntu: Incomplete Bug description: Results from a clean install of 20.04 with a forced update. When my system boots, the system comes up in dual monitor status (separated monitors). Once I log into my account the system reverts to a single monitor mode and the second monitor goes blank. If I attempt to change the display to dual monitors, both monitors are shown and defined correctly in the setup window (Built-in Laptop Monitor and HP 24"). However, once I click on apply, the system tries to reset to dual monitor, I would say several times, but fails and second monitor says that no signal is detected and to check the connection or cable. However, if I run Ubuntu (older version) from a thumb drive I have no problem with the dual monitor. I believe I am running the default video driver. --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu27.4 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME DisplayManager: gdm3 DistroRelease: Ubuntu 20.04 InstallationDate: Installed on 2020-07-25 (3 days ago) InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423) Package: gnome-shell 3.36.1-5ubuntu1 PackageArchitecture: amd64 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44 RelatedPackageVersions: mutter-common 3.36.3-0ubuntu0.20.04.1 Tags: focal Uname: Linux 5.4.0-42-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1889295/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
