Setting SYSTEMD_BYPASS_HIBERNATION_MEMORY_CHECK dos not change anything but this seems logical as this was introduced in a recent version of systemd and does not exist in systemd 229.
Creating a /etc/systemd/sleep.conf with SuspendState=mem (to avoid cycling through different suspending modes) does nto improve things either. When this problem occurs (ie. suspend process started but hanging), I cannot manually write mem to /sys/power/state ; trying to do so fails with a "device is busy" error. ** Summary changed: - Cannot hibernate properly ; systemd-sleep hangs + Cannot hibernate or suspend properly ; systemd-sleep hangs -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1652499 Title: Cannot hibernate or suspend properly ; systemd-sleep hangs Status in linux package in Ubuntu: Confirmed Bug description: Hello, on recent kernels including 4.4.0-57-generic, I observe more often than not the following behaviour after clicking the Hibernate button in XFCE4 interface : 1. Screen becomes black 2. No hard drive activity, which is suspicious 3. Moving the mouse shows the "locked screen" lightdm prompt 4. Unlocking the session, I get back to it ; things seems to work as usual except the ethernet connection is down 5. ps aux | grep hib shows that there is a /lib/systemd/systemd-sleep hibernate running 6. if I kill this process, the computer finally hibernates 7. booting the computer again resumes the session (with networking enabled) but with persistent graphical glitches on some parts of the interface, most visibly a. in my terminal, all occurrences of the letter b are scrambled b. in all windows, the maximise/minimise/close buttons are scrambled. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: systemd 229-4ubuntu13 ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35 Uname: Linux 4.4.0-57-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia ApportVersion: 2.20.1-0ubuntu2.4 Architecture: amd64 CurrentDesktop: XFCE Date: Sun Dec 25 10:36:33 2016 InstallationDate: Installed on 2016-09-07 (108 days ago) InstallationMedia: Xubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) MachineType: Dell Inc. Precision Tower 3620 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-57-generic.efi.signed root=UUID=6ebb7e70-29f5-4ddf-a1a1-8cc58113961a ro SourcePackage: systemd SystemdDelta: [EXTENDED] /lib/systemd/system/rc-local.service → /lib/systemd/system/rc-local.service.d/debian.conf [EXTENDED] /lib/systemd/system/systemd-timesyncd.service → /lib/systemd/system/systemd-timesyncd.service.d/disable-with-time-daemon.conf 2 overridden configuration files found. UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/26/2016 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.3.6 dmi.board.name: 09WH54 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 6 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.3.6:bd05/26/2016:svnDellInc.:pnPrecisionTower3620:pvr:rvnDellInc.:rn09WH54:rvrA00:cvnDellInc.:ct6:cvr: dmi.product.name: Precision Tower 3620 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1652499/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
