Windows 10: Sleep mode not working

A week ago stopped working from my normal 3 minute setting. The screen turns off after 3 min, pc remains on, but I have to push the start/shut off button to get the monitor on again.
Can't think of what software I might have added that could cause this.
My Phoenix BIOS Power Management is set up, for quite a long while as:
ACPCI .........................................: Enabled
" " Suspend Type....................: S3(STR)
Run VGABIOS if S3 Resume: Auto
Soft-Off by PWR-BTTN..........: Instant Off
Wake-Up by PCI CARD..........: Enabled
USB KB Wake-Up from S3...: Disabled
Resume by Alarm....................: " " " "
Thanks

:)

 

sleep mode not working

My Windows 10 Dell desktop sleep stopped working a few weeks ago. This was before the Developers Update.

1. When I go to Start menu, then Power; and select Sleep, it goes to sleep, then wakes up after variable period of time

2. It NEVER turns the screen off or goes to sleep automatically, even though I have set parameters multiple times for the screen to go blank and the power to shut down

I have tried all the suggestions I can find including the usual checking drivers, etc.

Any ideas???

 

sleep mode not working

Hi Ishmayel,

One of the possible causes why sleep mode is not working is due to a driver conflict. To rectify this issue, we suggest that you follow the troubleshooting steps on this

link.

We would appreciate it if you could get back to us and give us an update with the result.

 

What version of Windows do you use? Type winver at command prompt...

Windows 10 Insider build 14942 had this issue. If you have this build there is an easy fix - just upgrade. Otherwise first type sfc /scannow in admin command prompt and report if there are errors.

 

Build: 14393
thanks

 

One of your components (in PC) doesn't recognizes signal to go to sleep. Usually this is problem with drivers, and first to think of is graphic card. Try to reinstall the graphic card drivers. Or install the latest that work. If you have approximate date when this issue started - look at the event viewer (reliability history will also give you info about that - just click start and type reliability...).

If drivers reinstall won't help, open admin command prompt and type

this will give you report of what's going on. Unfortunately, this reports usually doesn't help a lot, but may give you an idea.

 

Hi Andre:
-When say re-instal graphic driver should uninstall the present driver and installed the latest reliable driver?
-In Reliability I only find "Acrobat Reader DC" software Unsuccessful Installation in Oct 10, 2016
and Successful Installation of same Oct 13, 2016.
-I am not able to sign in command prompt because access requires higher hierarchy than my W10 password. ??
Thank You! From sunny Miami, Florida. Just a joke.

 

So, you are not the only user of this PC? If you are not administrator, there isn't much you can do, not even install drivers.

If everything worked before, and you didn't install any software, maybe some USB device? That could be the culprit.
From the sunny side of the Alps *Smile

 

I have upgraded the latest driver via downloading it to my desktop, right clicking mouse to show "Run as Administrator" and installing then restarted pc. Still no sleep.
Strange about the command prompt not being able to sign in. No one else, for sure, uses my PC. The command prompt returns this as pe the image attached. My wife has her own, there no one else in the house. But I know what you men that you can't help in such a case a a clean install of W10 will be required.



Thanks!

 

In start menu, right click on start and select run as admin, or same in start menu under Windows, or in File explorer (File, command select run as admin)
I've checked around and there was a lot of this issue for your motherboard, but long time ago. Strange is, that it worked until last week, so BIOS and hardware should be OK. There were some Windows updates last week and some could interfere with power settings. Try to reset power plan (Control panel / harware /power options

 

This is my return to powercfg/sleepstudy

 

Now type

This should report which states are available on system.

Useful are also /energy and /LASTWAKE switches (type /? for help)

/LASTWAKE will give you info which component wake your PC, but is not answer to your problem.

/A will give you answer if system recognizes hardware as sleep capable (S3 state).
Perhaps power plan reset will help.

 

So I can't see sleep study?

 

Guess not - system not supporting it. Are you sure, you didn't switch anything in BIOS? Check again, if you have S3 selected.
If you are familiar with BIOS, you could also load system defaults.

Again: do you have any new devices? USB or printers? Or any loose cables...

 

Hi Andre, yes the BIOS was changed to S1 now it's back to S3, rebooted and sleep is working perfectly. It's something I really need.
Many thanks for your kind help and patience.
By the way I would trade you Miami and I'll move to the Alps! Have a great day.
raul