Just a note, I'm not really sure this is indeed a *systemd* bug, unfortunately I can't be sure yet I had to file it against a package. I made an (un?)educated guess based on the DBus message (I know systemd is intimately connected to DBus), on the fact systemd is connected to device management (udev) and finally on the fact that systemd does everything and the kitchen sink. It could also be X, kernel, something else... Unfortunately there are no messages in the syslog to give any clue...
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1782167 Title: Computer won't suspend Status in systemd package in Ubuntu: Confirmed Bug description: After a fresh start, suspend works fine. However, after a day or two, the computer simply won't enter suspend state, with no error message; sometimes when I try several times in a row, I get a notification about DBus failing to suspend because it is already doing something... or something like this. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: systemd 237-3ubuntu10 ProcVersionSignature: Ubuntu 4.15.0-24.26-generic 4.15.18 Uname: Linux 4.15.0-24-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.20.9-0ubuntu7.2 Architecture: amd64 CurrentDesktop: XFCE Date: Tue Jul 17 16:08:35 2018 MachineType: LENOVO 5474W9Y ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-24-generic root=UUID=1a87302c-9fb9-4110-99e5-2e0d44fec6b7 ro SourcePackage: systemd UpgradeStatus: Upgraded to bionic on 2018-06-19 (27 days ago) dmi.bios.date: 04/11/2011 dmi.bios.vendor: LENOVO dmi.bios.version: 5JKT55AUS dmi.board.vendor: LENOVO dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnLENOVO:bvr5JKT55AUS:bd04/11/2011:svnLENOVO:pn5474W9Y:pvrThinkCentreM90:rvnLENOVO:rn:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.family: To be filled by O.E.M. dmi.product.name: 5474W9Y dmi.product.version: ThinkCentre M90 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1782167/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp