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Scheduled wake from DRIPs (Modern Standby)
So, I've spent the last week scouring the web for this and failed!
I am trying to wake a Dell XPS laptop overnight to run maintenance tasks, including backup to local network server, and so far it has proven impossible.
While in the "Resiliency Phase" (https://docs.microsoft.com/en-us/win...modern-standby) all apps run in an Interactive Session are suspended by the Desktop Activity Moderator, but tasks running In Session-0 appear able to run. However, once the computer has entered DRIPS any task that relies on sleeping hardware will not succeed and on the Dell XPS, which runs in "Standby (S0 Low Power Idle) Network Disconnected", this includes the network adaptors (both WiFi and USB connected Ethernet), so even backup tasks that I can get to run still fail due to no network connection.
Waking from DRIPS on a schedule seems impossible! Wake timers do not work on Modern Standby systems, so neither do any user created Task Scheduler tasks (even ones set to run under SYSTEM). About the only thing that will occasionally wake the system is Windows Update, but it seems there is no longer any way to schedule that. Microsoft docs say UWP apps can (https://docs.microsoft.com/en-us/win...y-wake-sources) but it seems no one has written one for this purpose.
Surely there must be a way, short of writing your own UWP app, to get a Modern Standby system to wake from DRIPS for out-of-hours for housekeeping?? There don't seem to be any code snippets we can use. This just seems crazy hard!
All that needs to happen is for the software equivalent of a "power button press" or even, I think, just the computer to leave DRIPS. The tasks are waiting to run and as soon as the system wakes they should keep the system awake until they have completed.
Hopefully someone can make me look a total fool and point out something I have missed!
Last edited by Jong; 13 May 2019 at 03:23.