Windows 10 Desktop PC will not go to sleep automatically based on set idle timer no matter what I try. What else can I try

idlepower-managementsleeptroubleshootingwindows 10

I have a Windows 10 Desktop PC I built recently with all new parts, Windows is fully updated, as are all drivers, BIOS, etc. I had a problem with my PC waking up from sleep randomly at night, and then staying on all night, so I disabled all possible wake timers, which seems to have fixed that issue; however, now the PC stays asleep until I press a key on my keyboard.

  • My PC does not go to sleep automatically by itself based on the timer I set in Power Settings (presumably this is why it would stay up all night after automatically waking up with the previous issue above)
  • When I try specific programs to make only the monitors go to sleep, such as Turn off LCD and NirCmd, the monitors turn off for 1 second, then turn back on, so that is perhaps a clue

I've tried virtually everything [screenshots below] and nothing makes my PC go to sleep automatically when idle, including disabling all Wake Armed devices in Device Manager, which didn't fix it either, so I only left the Keyboard enabled to ensure I can wake my PC when I manually put it to sleep. I do not want to reset anything as it's taken me a long time to get my PC configured just right and fix the issue of my PC waking randomly from sleep.

  • Advanced Power Settings:
    Advanced Power Settings
  • Power Troubleshooting Results:
    Power Troubleshooting
  • Group Policy Sleep Settings set to ensure automatic sleep:
    All relevant "Sleep Settings" in "Local Group Policy Editor" set to ensure automatic sleep
  • powercfg:
    • devicequery wake_armed: 
      HID Keyboard Device (003)
HID Keyboard Device (004)
    • -energy: 14 Errors, 9 Warnings, 58 Informational (rebooted, didn't touch anything)
    • -requests: 
      DISPLAY:
  None.

SYSTEM:
  None.

AWAYMODE:
  None.

EXECUTION:
  None.

PERFBOOST:
  None.

ACTIVELOCKSCREEN:
  None.

What else can I try to find out what in the world is keeping my PC from sleeping automatically and fix this issue, considering powercfg -requests returns everything as none?

FINAL UPDATE: With the help of a combination of everyone's suggestions (see my answer below), I was able to find the culprit: Creative Pebble V3 external speakers connected via USB-C. I updated its Firmware and it resolved the problem.

Best Answer

Try to disconnect PSU USB 'corsair link' cable as googling corsair link sleep has people talking about that being problematic. In the comments you electronically disabled all your devices, please physically disconnect everything possible except for keyboard, might want to even try another one of those. This is a normal troubleshooting step that Microsoft recommends & Level 2 techs at HP (I was a lvl1 tech there) suggested, process of elimination. No one is saying disconnecting everything will BE the fix, it will help us understand IF ANY of the devices are problematic. If not then we know its not those pieces of equipment.

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