Follow-up and clarification: Timed suspend (e.g. after x hours) works on my system fairly reliably. Suspend from the GNOME GUI does not work ever.
As such, this might be caused by the transition to GNOME. Here is a guess at a cause: to access suspend on the GUI you must now press the ALT key. Possibly this key release is getting processed as a wake-up event? -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-screensaver in Ubuntu. https://bugs.launchpad.net/bugs/1768176 Title: Unable to suspend computer Status in gnome-screensaver package in Ubuntu: Confirmed Bug description: Ubuntu 18.04 fails to suspend if a window is open - it merely goes to the lock screen with a message that 1 process could not be stopped. [Side note - this behaviour disregards that I have the lock screen disabled in Privacy settings.] I closed Chrome and a terminal window to reveal the second behaviour: When suspend is selected (through power icon) the computer power momentarily stops (under a second) then the computer returns to the lock screen after a pause. Suspend worked very consistently on this hardware on 16.04 LTS in all situations. No changes have been made to the hardware since (long before) upgrade to 18.04. ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: gnome-screensaver 3.6.1-8ubuntu3 ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17 Uname: Linux 4.15.0-20-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.20.9-0ubuntu7 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Mon Apr 30 22:55:45 2018 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_CA.UTF-8 SHELL=/bin/bash SourcePackage: gnome-screensaver Symptom: security Title: Screen locking issue UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-screensaver/+bug/1768176/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

