EVGAuser97428
bdary, I wasn't aware of that setting.  Just turned it off.  It might explain why sometimes in the morning I find the  computer awake when I put it to sleep for the night.

It didn't help the OP, but glad you found it useful...

I put timer to let PC go to sleep in 25 min well monitor went sleep fine yet PC itself did not go to sleep.

Tried lot things PC won't go to sleep anyways. This hard believe it be hardware seems more like Windows 11 issue who knows this take a knowledgeable tech I guess to actually figure out or not. I know EVGA has lot good techs around understand this issue.

Wouldn’t hurt to try windows 10 on a separate ssd to see if it’s a windows 11 issue.

Something else I thought about.  Go to Power Option > Advanced Power Setting > USB Settings > USB Selective suspend setting and verify it's enabled.  If not, any peripheral device will ping the system and keep it awake.

Sajin
Wouldn’t hurt to try windows 10 on a separate ssd to see if it’s a windows 11 issue.

+1.... thats a very good idea cause this is sounding like a 11 bug maybe. On my power options i have it set like this:  Balanced, turn monitor off never, put pc to sleep never, then in advanced its set to: harddisk-never, desktop background-available, wireless adapter-max performance, sleep-sleep after=never/ Allow hybrid sleep=on/ hibernate after=11111 minutes/ allow wake timers-disable/ pci express- link state= off, processor power management- min state=1%/ system cooling=aactive/ max proc state=100% and display-turn off=never. Now, there may be a service you dont have set up in the windows service manager that could interfere if it wasnt on if the wrong one was on etc.... i cant say for sure but i do keep mine with as many shut off as possible and i use O&O shutup with ashampoo's uninstaller to deactivate some things windows wont let me do. With all that said, my sleep and hibernate work no problem although i do not do a tiimer i just turn the sleep on from the start button.

Got good news now PC can go sleep.  Happen after Unleash update same time ( firmware updated too) I was able see PC go to sleep after 25 min of no use. This is unexpected being that maybe is keyboard firmware had some do with it or maybe just keyboard software update was cause. It does layout the Question why nobody else had same issue or similar anyways seems PC can be put sleep fine even if I manually do it. What pain it was.

Seems I spoke too soon now it would go to sleep. This what I am going do leave it alone for while since this issue just not going be easy to deal with & works sometimes other times don't work.

lastsamurairick
Seems I spoke too soon now it would go to sleep. This what I am going do leave it alone for while since this issue just not going be easy to deal with & works sometimes other times don't work.

I have to turn my mouse upside down when entering sleep mode or half the time my PC will wake from S3 sleep for no apparent reason. It has done that with several versions of Corsair mice.

HeavyHemi

lastsamurairick
Seems I spoke too soon now it would go to sleep. This what I am going do leave it alone for while since this issue just not going be easy to deal with & works sometimes other times don't work.

I have to turn my mouse upside down when entering sleep mode or half the time my PC will wake from S3 sleep for no apparent reason. It has done that with several versions of Corsair mice.

  That is a first (for me anyway)...  Whatever works I guess.

I've got a hyperx quadcast s and it doesn't let my computer sleep, so I unplug it at the mic every time before I put it to sleep. So annoying.

👍

bdary
On your Z20, are you sure it's not your front sensor not set up correctly or possibly faulty?  The settings for that are in the TOF tab of the Unleash software.  It can be used to put the PC to sleep or wake it from sleep depending how you have your Windows sleep functions set up.
 
I don't know all the ins and outs of this feature, but after playing with it a bit, I ended up just keeping it off.  Are you using the latest driver for it?  One of the later versions has some type of fix for it if I recall.
 
Links on the subject:
https://tekdeeps.com/new-evga-z20-keyboard-puts-your-pc-to-sleep-when-you-walk-away/
https://www.insight.com/en_US/shop/product/812-W1-20US-KR/EVGA.COM/812-W1-20US-KR/EVGA-Z20---keyboard---with-ToF-proximity-sensor---US/
https://forums.evga.com/Z20-Windows-LockSleep-Question-m3227524.aspx
 

I thought of that bdary (TOF mess with it even off and PC still would not sleep) might be waking it but for the fact that keyboard now shuts off by itself while gaming and or web browsing and wont come back on only if plug and unplug it than back off again let me know is defective really cant get up every 5 min it go off and unplug to plug back on to get it to work.
Now keyboard just stays off completely no response it is RMA time. Thanks for trying help.