In journalctl I found that whenever the machine reached suspend target, ACPI kicked in to wake the machine again.
kernel: ACPI: Low-level resume complete Today, I put the machine to sleep (using the alt option on the shutdown menu). The machine woke up every two seconds and went to sleep again (for over half an hour). Finally and for no obvious reason, the machine kept sleeping until I woke it up 3 hours later. Weired -- 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/1799038 Title: Ubuntu 18.10 does not suspend on lid close Status in systemd package in Ubuntu: New Bug description: After an upgrade to Ubuntu 18.10 suspend to RAM due to closing the lid on notebooks does not work any more. The machine goes to suspend mode but wakes up immediately due to some events (can be network, or others). In 18.04 this issue was fixed (we had the same situation with any version since 14.04). Seems a regression. Mitigation reports suggesting to change /etc/systemd/logind.conf are WRONG. The changes do NOTHING. One might spare the time to experiment. ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: systemd 239-7ubuntu10 ProcVersionSignature: Ubuntu 4.18.0-10.11-generic 4.18.12 Uname: Linux 4.18.0-10-generic x86_64 ApportVersion: 2.20.10-0ubuntu13 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Sun Oct 21 11:55:48 2018 InstallationDate: Installed on 2018-04-30 (174 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 05ac:0273 Apple, Inc. Bus 001 Device 002: ID 05ac:8290 Apple, Inc. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Apple Inc. MacBookPro12,1 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.18.0-10-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=1 SourcePackage: systemd UpgradeStatus: Upgraded to cosmic on 2018-10-20 (0 days ago) dmi.bios.date: 08/08/2017 dmi.bios.vendor: Apple Inc. dmi.bios.version: MBP121.88Z.0171.B00.1708080033 dmi.board.name: Mac-E43C1C25D4880AD6 dmi.board.vendor: Apple Inc. dmi.board.version: MacBookPro12,1 dmi.chassis.type: 9 dmi.chassis.vendor: Apple Inc. dmi.chassis.version: Mac-E43C1C25D4880AD6 dmi.modalias: dmi:bvnAppleInc.:bvrMBP121.88Z.0171.B00.1708080033:bd08/08/2017:svnAppleInc.:pnMacBookPro12,1:pvr1.0:rvnAppleInc.:rnMac-E43C1C25D4880AD6:rvrMacBookPro12,1:cvnAppleInc.:ct9:cvrMac-E43C1C25D4880AD6: dmi.product.family: MacBook Pro dmi.product.name: MacBookPro12,1 dmi.product.version: 1.0 dmi.sys.vendor: Apple Inc. mtime.conffile..etc.systemd.logind.conf: 2018-10-20T22:01:57.469491 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1799038/+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
