So I patched pm-suspend to exit 0, and that would not trigger the bug anymore.
I added a sleep as you suggested and NM would disconnect and then reconnect up to sleep value of 25 but not with sleep values of at least 26. I think we're looking at a 30 seconds timeout since my system takes some seconds to settle from the suspend code pathes (keyboard and display backlights take a couple of seconds to get turned off). The failing case also differs from the working case in that the screen doesn't turn back on; I guess this is because the signal which we're missing for Network Manager also misses for gnome-screensaver. -- You received this bug notification because you are a member of DX Packages, which is subscribed to systemd-shim in Ubuntu. https://bugs.launchpad.net/bugs/1252121 Title: missing PrepareForSleep signal after resuming, causing networking to stay disabled Status in “systemd-shim” package in Ubuntu: Confirmed Status in “systemd-shim” source package in Saucy: Confirmed Status in “systemd-shim” source package in Trusty: Confirmed Bug description: As per request from bug #1184262, this is a new report, along with dbus (to be attached) ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: systemd-services 204-0ubuntu19 Uname: Linux 3.12.0-custom x86_64 ApportVersion: 2.12.5-0ubuntu2.1 Architecture: amd64 Date: Sun Nov 17 20:24:41 2013 MarkForUpload: True SourcePackage: systemd UpgradeStatus: Upgraded to saucy on 2013-10-17 (31 days ago) SRU INFORMATION: FIX: https://github.com/desrt/systemd-shim/commit/9e1ebe3ab (in trusty already) Regression potential: Low. Flushing the session bus was introduced in version 4 and is obviously bogus as in a system D-BUS service there is no session bus. This causes lots of confusing error messages and unnecessary overhead like trying to start dbus-launch. Flushing the system bus is low-risk, in most cases it's a no-op and it would otherwise prevent losing signals after waking up. No known regressions. TEST CASE: Run several suspend/resume cycles with the lid, session indicator menu, and verify that the network comes back up. It is known that this fix is necessary but not sufficient, so it is not expected to fix all cases. But it should not make things worse, so if network now does not come up any more on a machine where it previously worked this would count as failure/regression. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd-shim/+bug/1252121/+subscriptions -- Mailing list: https://launchpad.net/~dx-packages Post to : dx-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~dx-packages More help : https://help.launchpad.net/ListHelp