Don't ya just love Windows - sleep timeout during login

Dashrender

What I assume is the same issue I ran into years ago - where a computer going to sleep, a user would wake it up, and when they stopped using it - it would go back to sleep in a super short amount of time (I believe it was 2 mins).

After years I found out this was the System unattended sleep timeout setting, which is a hidden setting by default. This setting can be unhidden so you can change it in the GUI via
powercfg -attributes SUB_SLEEP 7bc4a2f9-d8fc-4469-b07b-33eb785aaca0 +ATTRIB_HIDE

Or you can change the registry

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerSettings\238C9FA8-0AAD-41ED-83F4-97BE242C8F20\7bc4a2f9-d8fc-4469-b07b-33eb785aaca0

The Attributes DWORD controls how long before the system goes back to sleep.
0 - disables it

OK - onto today's issue.

User's computer went to sleep sometime yesterday - woke it up - between the amount of time the user stared at the screen, them typing in their password and pressing enter to start the login process - the timeout timer expired - putting the computer back into sleep mode.

The user would then wake the computer to find a - can't log in error message (Don't recall exact message).

Rebooting the computer instantly solved this issue - which they claimed they did - hmm.. now that I'm writing this - I need to look at the logs and see if they actually did reboot - I'm guessing not.

Of course when the user reported this issue - they reported - I try to log in - the spinny thing spins - then the computer just powers off. Of course once I arrived and watched the process happen - I noticed the slow flashing power light - indicating sleep mode, which instantly lead me to the situation I mention at the start of this post.

I rebooted the computer and was able to log in instantly. I logged out, had the user log in and it worked fine!

I went in search of the registry key (during which I updated my ancient post here) to change the system to not use System unattended sleep timeout.

Let's see how long until this user has their next issue.

scottalanmiller

For later when people find this...

https://mangolassi.it/topic/18166/windows-10-goes-to-sleep-outside-listed-sleep-times/53