Scheduled backups not starting after wake from sleep

ts678 · October 21, 2020, 12:50pm

Can you get PC awake with Duplicati paused, but UI visible?

If you use Tray Icon, does it look paused (vertical bars icon)?

Does web UI to right of status show vertical bars or triangle?

Look at Server state properties.in About → System info

If I tell the UI to pause, I “think” that’s like a sleep. Looking then:

estimatedPauseEnd : 0001-01-01T00:00:00
programState : Paused
pauseTimeRemain : 0

If I use main screen Settings to pause 10 minutes after wake:

estimatedPauseEnd : 2020-10-21T08:09:37.9844007-04:00
programState : Paused
pauseTimeRemain : 487027 (milliseconds until the resume)

Duplicati uses Windows power mode change events (interpreted through .NET Framework) below.

github.com

duplicati/duplicati/blob/a80d50687eab27e0308581178ad618878bfbcb85/Duplicati/Server/LiveControls.cs#L336-L351


      
          /// <summary>

          /// Method for calling a Win32 API

          /// </summary>

          private void RegisterHibernateMonitor()

          {

              Microsoft.Win32.SystemEvents.PowerModeChanged += new Microsoft.Win32.PowerModeChangedEventHandler(SystemEvents_PowerModeChanged);

          }

          

          /// <summary>

          /// A monitor for detecting when the system hibernates or resumes

          /// </summary>

          /// <param name="sender">Unused sender parameter</param>

          /// <param name="_e">The event information</param>

          private void SystemEvents_PowerModeChanged(object sender, object _e)

          {

              Microsoft.Win32.PowerModeChangedEventArgs e = _e as Microsoft.Win32.PowerModeChangedEventArgs;

and I don’t see much logging at the Duplicati level, though possibly you might find some differences in Windows registry event sequences or powercfg, maybe /lastwake or /sleepstudy, maybe other things.

PowerModeChanged triggers late is kind of worrisome in its advice (which may or may not be correct)

PowerModeChanged does not fire until a key is pressed or mouse is moved

and

In Windows 10, version 1507 systems or later, if the system is resuming from sleep only to immediately enter hibernation, this event is not delivered. A WM_POWERBROADCAST message is not sent in this case.

I’m pretty sure that (before I disallowed this), I’ve seen Windows wake to do something, then go back to sleep. I forget whether it even can be noticed on the display, or if it’s just some fans running for awhile…