Windows 10: PC won't go to sleep, "Legacy Kernel Caller" appears under SYSTEM in powercfg requests

No matter what happens, my PC will not go to sleep. I tried setting the timers and power plans differently and unplugging certain hardware, nothing will put it to sleep.

I did notice that when I change my display adaptor in Device Manager from "NVIDIA RTX 3080" to "Microsoft Basic Display Adaptor", the legacy kernel message disappears as well as my sleep options in settings. The PC would still refuse to sleep, though.

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:)

 

Windows 10 won't sleep: "Legacy Kernel Caller" in PERFBOOST section of "powercfg -requests" at fault?

Today, my Windows 10 just won't go to sleep.

Running "powercfg -requests" shows:

DISPLAY:

None.

SYSTEM:

None.

AWAYMODE:

None.

EXECUTION:

None.

PERFBOOST:

[DRIVER] Legacy Kernel Caller

Power Manager

ACTIVELOCKSCREEN:

None.

I can (and did, to no avail) add "Legacy Kernel Caller" to "powercfg /requestsoverride Driver "Legacy Kernel Caller" system", but it's not in a SYSTEM section, it's in PERFBOOST, and "powercfg /requestsoverride" has no option to
ban a request from there. I found that "powercfg /requestsoverride" actually just manages the "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerRequestOverride" registry branch, and tried adding some more extensive bitmasks (0xff, why not?),
but I only managed to override DISPLAY, SYSTEM, AWAYMODE and EXECUTION - nothing on PERFBOOST.

Of course no USB devices are allowed to wake the system up anymore ("powercfg -devicequery wake_armed" is empty), the power plan option allowing timers to wake the system is off.

How do I get it to sleep again?

 

Won't Enter Sleep - legacy kernel caller

I built a new PC about two months ago, and up until last week, It went to sleep on its own, of manually via power options. The monitor goes to idle, but immediately comes back to login screen, and PC never enters sleep.
I've done a number of searches, and most of these errors seem to suggest driver issues. Other than install Logitech software for my joystick, I haven't added anything new to my system, or updated any of its drivers.

When I run "powercfg -requests" I got Audio stream from Realtek, but after close my browser that would disappear. Now I still get "PERFBOOST: [DRIVER] Legacy Kernel Caller "

I've run Powercfg -requestsoverride Driver "Legacy Kernel Caller" System, but it does nothing, kernel caller still remains.
Last night after running "powercfg -requests", it actually was showing nothing running at all, yet the darn thing still won't enter sleep.

Sys Specs:


i7-6700K Quad-Core - 4.0GHz BX80662I76700K
Gigabyte GA-Z170X-UD5 TH - socket 1151
On-board Realtek ALC1150 High Definition 8 channel Audio
G.SKILL TridentZ Series 32GB DDR4 3200 Model F4-3200C14D-32GTZSW
MSI GeForce GTX 980 Ti Gaming 6G
SSD - Samsung M2 EVO 850 500GB port 0
Corsair HX850i Power Supply
Win 10 Pro 64bit

 

powercfg won't honor -requestsoverride

Currently I have two drivers that is preventing my Windows 10 from sleeping (running Command Prompt as administrator):

So I added them via the -requestsoverride command like

Then I can see the two drivers made it on the override list:

However, when I run powercfg -requests again, the output is the same as the first result and both drivers are still preventing my computer from sleeping. I restarted my computer and it's still the same. I set my computer to sleep after 1 minute of inactivity, but it will never sleep unless I manually sleep it via the start menu.

I'm willing to post any other details/logs if needed. Just let me know. Thanks!