I've recently upgraded from 12.04 to 14.04. In 12.04 all worked perfectly. I see the same sort of thing as discussed. I attach a log from dbus-monitor.
PrepareForSleep True is sent, sleep state is never reached, PrepareForSleep false is never sent I have no problem suspend/hybernate via pm-suspend. sudo /lib/systemd/systemd-sleep suspend also works fine for suspend, hibernate and hybrid-sleep systemd/network manager get in a mess. seemingly together (see test results below) Since I'm on 14.04, I don't have systemd-shim, so this seems to be a systemd problem, not just -shim I used to have tlp installed, but have purged it, and re-installed systemd, the problem has not cleared. Test results: $ sudo gdbus call -y -d org.freedesktop.login1 -o /org/freedesktop/login1 -m org.freedesktop.login1.Manager.Suspend true >> network manager disables, no suspend 2nd call: $ sudo gdbus call -y -d org.freedesktop.login1 -o /org/freedesktop/login1 -m org.freedesktop.login1.Manager.Suspend true Error: GDBus.Error:org.freedesktop.systemd1.LoadFailed: Unit systemd-suspend.service failed to load: No such file or directory. See system logs and 'systemctl status systemd-suspend.service' for details. $ sudo killall NetworkManager >> Network returns. $ sudo gdbus call -y -d org.freedesktop.login1 -o /org/freedesktop/login1 -m org.freedesktop.login1.Manager.Suspend true >> network manager disables, no suspend ----------------------------- Test results2: $ systemctl suspend >> network manager disables, no suspend (no error msg) $ systemctl suspend Failed to issue method call: Unit systemd-suspend.service failed to load: No such file or directory. See system logs and 'systemctl status systemd-suspend.service' for details. Failed to issue method call: Access denied $ sudo killall NetworkManager >> Network returns. $ systemctl suspend >> network manager disables, no suspend (no error msg) $ sudo systemctl status systemd-suspend.service systemd-suspend.service Loaded: error (Reason: No such file or directory) Active: inactive (dead) ---------------- $ sudo nmcli nm sleep false >> NM restarts, however, it is NOT as 'cleansing' as killing NM As: $ systemctl suspend Failed to issue method call: Unit systemd-suspend.service failed to load: No such file or directory. See system logs and 'systemctl status systemd-suspend.service' for details. ** Attachment added: "dbus log, kill NetworkManager, wait, try to suspend, wait, kill N-Mgr" https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1252121/+attachment/4810108/+files/dbus.log ** No longer affects: systemd (Ubuntu Saucy) -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1252121 Title: missing PrepareForSleep signal after resuming, causing networking to stay disabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1252121/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
