An upstream bug: https://gitlab.gnome.org/GNOME/mutter/-/issues/938
suggests that: Error setting property 'PowerSaveMode' on interface org.gnome.Mutter.DisplayConfig: Timeout was reached (g-io-error-quark, 24) is a symptom and not the problem. So... Thank you for taking the time to report this bug and helping to make Ubuntu better. It sounds like some part of the system has crashed. To help us find the cause of the crash please follow these steps: 1. Look in /var/crash for crash files and if found run: ubuntu-bug YOURFILE.crash Then tell us the ID of the newly-created bug. 2. If step 1 failed then look at https://errors.ubuntu.com/user/ID where ID is the content of file /var/lib/whoopsie/whoopsie-id on the machine. Do you find any links to recent problems on that page? If so then please send the links to us. 3. If step 2 also failed then apply the workaround from bug 994921, reboot, reproduce the crash, and retry step 1. Please take care to avoid attaching .crash files to bugs as we are unable to process them as file attachments. It would also be a security risk for yourself. ** Summary changed: - Ubuntu 20.04 freezes when logging in + Ubuntu 20.04 freezes when logging in with external monitors connected ** Tags added: multimonitor ** Also affects: mutter (Ubuntu) Importance: Undecided Status: New ** Bug watch added: gitlab.gnome.org/GNOME/mutter/-/issues #938 https://gitlab.gnome.org/GNOME/mutter/-/issues/938 ** Also affects: mutter via https://gitlab.gnome.org/GNOME/mutter/-/issues/938 Importance: Unknown Status: Unknown ** Summary changed: - Ubuntu 20.04 freezes when logging in with external monitors connected + Ubuntu 20.04 freezes when logging in with external monitors connected [Error setting property 'PowerSaveMode' on interface org.gnome.Mutter.DisplayConfig: Timeout was reached (g-io-error-quark, 24)] ** Also affects: gnome-settings-daemon (Ubuntu) Importance: Undecided Status: New ** No longer affects: mutter ** No longer affects: gnome-settings-daemon (Ubuntu) ** Changed in: mutter (Ubuntu) Status: New => Incomplete -- 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/1880954 Title: Ubuntu 20.04 freezes when logging in with external monitors connected [Error setting property 'PowerSaveMode' on interface org.gnome.Mutter.DisplayConfig: Timeout was reached (g-io-error-quark, 24)] Status in gnome-shell package in Ubuntu: Incomplete Status in mutter package in Ubuntu: Incomplete Bug description: Sometimes when logging in to my laptop, it freezes just after entering my password. I assume the problem package is gnome-settings-daemon because the only error I can see in my syslog seems to be related to gnome-settings-daemon I'm able to restart the machine using 'alt+PrtSc rseiub' but everything else is unresponsive. I have the following system: $ lsb_release -rd Description: Ubuntu 20.04 LTS Release: 20.04 $ uname -a Linux admin2-ThinkPad-X1-Carbon-7th 5.4.0-31-generic #35-Ubuntu SMP Thu May 7 20:20:34 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux With the following package version: $ apt show gnome-settings-daemon Package: gnome-settings-daemon Version: 3.36.1-0ubuntu1 I see the following in my syslog when this happens: May 27 14:06:35 admin2-ThinkPad-X1-Carbon-7th dbus-daemon[936]: [system] Activating via systemd: service name='net.reactivated.Fprint' unit='fprintd.service' requested by ':1.139' (uid=1001 pid=1888 comm="/usr/bin/gnome-shell " label="unconfined") May 27 14:06:35 admin2-ThinkPad-X1-Carbon-7th systemd[1]: Starting Fingerprint Authentication Daemon... May 27 14:06:35 admin2-ThinkPad-X1-Carbon-7th kernel: [79025.239325] usb 1-9: reset full-speed USB device number 5 using xhci_hcd May 27 14:06:36 admin2-ThinkPad-X1-Carbon-7th dbus-daemon[936]: [system] Successfully activated service 'net.reactivated.Fprint' May 27 14:06:36 admin2-ThinkPad-X1-Carbon-7th systemd[1]: Started Fingerprint Authentication Daemon. May 27 14:06:36 admin2-ThinkPad-X1-Carbon-7th gnome-shell[1888]: clutter_input_focus_set_cursor_location: assertion 'clutter_input_focus_is_focused (focus)' failed May 27 14:06:41 admin2-ThinkPad-X1-Carbon-7th NetworkManager[938]: <info> [1590584801.7453] agent-manager: agent[6ebc664fc14fe9de,:1.139/org.gnome.Shell.NetworkAgent/1001]: agent registered May 27 14:06:41 admin2-ThinkPad-X1-Carbon-7th dbus-daemon[1763]: [session uid=1001 pid=1763] Activating service name='org.freedesktop.FileManager1' requested by ':1.32' (uid=1001 pid=1888 comm="/usr/bin/gnome-shell " label="unconfined") May 27 14:06:41 admin2-ThinkPad-X1-Carbon-7th dbus-daemon[1763]: [session uid=1001 pid=1763] Activating service name='org.gnome.Nautilus' requested by ':1.32' (uid=1001 pid=1888 comm="/usr/bin/gnome-shell " label="unconfined") May 27 14:07:06 admin2-ThinkPad-X1-Carbon-7th dbus-daemon[1763]: [session uid=1001 pid=1763] Successfully activated service 'org.gnome.Nautilus' May 27 14:07:06 admin2-ThinkPad-X1-Carbon-7th org.gnome.Nautilus[130586]: Failed to register: Unable to acquire bus name 'org.gnome.Nautilus' May 27 14:07:10 admin2-ThinkPad-X1-Carbon-7th systemd[1]: fprintd.service: Succeeded. May 27 14:07:22 admin2-ThinkPad-X1-Carbon-7th gsd-power[2004]: Error setting property 'PowerSaveMode' on interface org.gnome.Mutter.DisplayConfig: Timeout was reached (g-io-error-quark, 24) May 27 14:07:25 admin2-ThinkPad-X1-Carbon-7th kernel: [79074.772030] sysrq: This sysrq operation is disabled. May 27 14:07:25 admin2-ThinkPad-X1-Carbon-7th kernel: [79075.143012] sysrq: Emergency Sync May 27 14:07:25 admin2-ThinkPad-X1-Carbon-7th kernel: [79075.155014] Emergency Sync complete May 27 14:07:26 admin2-ThinkPad-X1-Carbon-7th kernel: [79075.455113] sysrq: This sysrq operation is disabled. May 27 14:07:26 admin2-ThinkPad-X1-Carbon-7th kernel: [79075.885112] sysrq: This sysrq operation is disabled. May 27 14:07:26 admin2-ThinkPad-X1-Carbon-7th kernel: [79076.256171] sysrq: Emergency Remount R/O --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu27.2 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: ubuntu:GNOME DisplayManager: gdm3 DistroRelease: Ubuntu 20.04 InstallationDate: Installed on 2020-01-23 (136 days ago) InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805) Package: gnome-shell 3.36.2-1ubuntu1~20.04.1 PackageArchitecture: amd64 ProcVersionSignature: Ubuntu 5.4.0-33.37-generic 5.4.34 RelatedPackageVersions: mutter-common 3.36.2-1ubuntu1~20.04.1 Tags: wayland-session focal Uname: Linux 5.4.0-33-generic x86_64 UpgradeStatus: Upgraded to focal on 2020-05-21 (17 days ago) UserGroups: docker sudo _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1880954/+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