Comment 6 for bug 1252121

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Martin Pitt (pitti) wrote : Re: networkmanager networking is disabled on suspend-resume

In bug 1184262, Catalin made an interesting observation that this failure seems to only happen for her when using the lid to suspend, but not when using the session menu or power button.

It would be interesting if you ever get a suspend failure with this:

  sudo gdbus call -y -d org.freedesktop.login1 -o /org/freedesktop/login1 -m org.freedesktop.login1.Manager.Suspend true

This should ideally be equivalent to running pm-suspend or the menu/power button, but it is only sometimes equivalent to closing the lid. The lid is handled by logind internally *unless* there is a running Unity/GNOME session. On some laptops there are pm-suspend quirks which switch to VT1 before suspend, which might be related.