Public bug reported: I have a Dell XPS 13 9380 laptop with Type-C dock. There are two external monitors (DisplayPort) and USB mouse attached to the doc.
Normally I disconnect the dock cable from the laptop, close the laptop lid and laptop suspends. However, sometimes it doesn't suspend. I can see the 'Lid closed.' message in systemd-logind log which is normally followed by a sleep. Once this happens, laptop no longer suspends on lid close until I restart Gnome session. Also, if I lock it, the screen goes black but the backlight does not turn off. I can put computer to a sleep from Gnome menu. I'm not sure if it's issue is specific to Type-C dock though. It happens rarely, maybe 1 of 20 times. It appears like gsd does not detect monitors disconnect event in some cases: abram@abram-laptop:~$ systemd-inhibit --list --mode=block WHO UID USER PID COMM WHAT WHY MODE gdm 123 gdm 1977595 gsd-power handle-lid-switch External monitor attached or configuration changed recently block gdm 123 gdm 1977593 gsd-media-keys handle-power-key:handle-suspend-key:handle-hibernate-key GNOME handling keypresses block abram 1000 abram 779130 gsd-media-keys handle-power-key:handle-suspend-key:handle-hibernate-key GNOME handling keypresses block 3 inhibitors listed. I've also seen a similar issue mentioned at askubuntu: https://askubuntu.com/questions/1196871/gnome-supend-on-laptop-lid-close-no-longer-works-since-19-10-upgrade The accepted answer involves killing gsd-power but that's more like a workaround than a fix; the same presumably happens when Gnome session is restarted. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: gnome-settings-daemon 3.36.1-0ubuntu1 ProcVersionSignature: Ubuntu 5.4.0-33.37-generic 5.4.34 Uname: Linux 5.4.0-33-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.2 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: GNOME Date: Fri Jun 12 19:19:35 2020 InstallationDate: Installed on 2019-04-17 (421 days ago) InstallationMedia: Ubuntu 19.04 "Disco Dingo" - Alpha amd64 (20190326.2) SourcePackage: gnome-settings-daemon UpgradeStatus: Upgraded to focal on 2020-04-02 (70 days ago) ** Affects: gnome-settings-daemon (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug focal -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1883292 Title: Laptop not suspending on lid close after external monitors disconnected To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1883292/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs