these are my notes

Windows Power Configuration Commands

This is a collection of Windows power commands to help diagnose and change power and sleep settings.

• Reports the sleep states available on the system.
  

  powercfg /a

  • Your firmware might not support the S3 mode. Support for the various sleep modes will be shown when you run the command above.
• Reports information about what woke the system from the last sleep transition.
  

  powercfg /lastwake

• List devices that are currently configured to wake the system from any sleep state.
  

  powercfg /DEVICEQUERY wake_armed
  

• ......

Lenovo keeps waking up from sleep

The solution might be one or a combination of the following solutions, but I have put them in the order I think you should try them in.

• Potential Solutions
  • Disable "wake up computer" on devices
  • Disable S0 Modern Standby
  • Disable always on USB power in the BIOS.
  • ?? is it becasue I am sing a keybaord and mouse on a powered hub? where as on my dell I was not they were directly into the docking station.
  • My USB keyboard and mouse are on my power USB hub, this allows power to be supplied to these devices even when USB always on is disabled. It might mean the USB bus is still accepting data packets.
  • Disable Windows Fastboot  ???
  • Hibernate your system rather than sleep

NB: The laptops trackpad, nipple/Pointers and keyboard will not wake the system up.

Links

• What is USB Selective Suspend Setting? Should You Turn It On or Off - Tech News Today
  • You might have come across the USB Selective Suspend setting while looking through the advanced power plan settings. In this article, we have explained this feature in detail to help you decide if you should turn it on or off by yourself.
  • This is in the Windows power plan. You should just leave this alone.
  • This feature just allow Windows to turn of individual devices on a USB hub rather than the whole hub.

Disable S0 Modern Standby / Change from S0 to S3 sleep mode

Options

• Change sleep state in the BIOS
  • Not all laptops will have this option.
  • Check your BIOS as some have an option to switch between S0 and S3
  • In My Lenovo you can change the sleep state in the BIOS
    • They have called them different names with a warning to try and encourage you to use S0.
    • You should just ignore the warning set as required. However (once), I did have S3 enabled and Windows 11 would not wake up, would not even respond to my keyboard or power button.
    • The settings are as follows:
      • "Windows and Linux" = S0
      • "Linux Only" = S3
• Disable S0 Modern Standby via Windows
  • If you have the ability to change the sleep state in the BIOS (as shown above) then this hack is not going to change anything.
  • If you PC/laptop presents both S0 and S3 methods at the same time,  Window will always pick S0 and so to prevent and use S3 we can use a registry hack to override this behaviour.

Notes

• Changing from S0 to S3 only changes what is shut down for the sleep.
• S0 allows a lot of background tasks to run, I assume they have a specific flag to allow this and that the OS controls this.
• In S3 everything is shutdown except for RAM maintenance and wake up calls (i think). S3 will get better power savings and less risk of data corruptions.
• standby - What is the difference between (these four) sleep states? - Super User
  • S0 - On / Working
    • The computer is powered up. If supported, power conservation is handled by each device.
  • S1 - Sleep
    • CPU is stopped. RAM maintains power. Everything else is off, or in low power mode.
  • S2 - Sleep
    • CPU has no power. RAM maintains power. Everything else is off, or in low power mode.
  • S3 - Standby
    • CPU has no power. RAM maintains power, refreshes slowly. Power supply reduces power. This level might be referred to as “Save to RAM.” Windows enters this level when in standby.
  • S4 - Hibernate
    • Power to most hardware is shut off. Any files in memory are saved to the hard disk in a temporary file. If configured, the NIC will remain on for WOL or AoL. This level is also known as “Save to disk.”
  • S5 - Off
    • Everything is off. No files are saved. If configured, the NIC will maintain power to listen for WOL (magic) packets. This is known as a shutdown.
• System Sleep States: S0, S1, S2, S3, S4 & S5 | CrazyEngineers - Fellow engineers, in this article I am going to discuss the system sleep states: S0, S1, S2, S3, S4 and S5 in detail.
• Modern Standby vs S3 | Microsoft Learn
  • Outlines the primary differences between S3 and Modern Standby system power models.
  • On any Modern Standby system, the system remains in S0 while in standby, allowing the following scenarios to work: Background activity, Faster resume from a low power state.
  • Modern Standby comprises Screen Off and Sleep states, where the Screen Off state encompasses active behaviours to quiesce the system to sleep, and the Sleep state is equivalent to S3 sleep with the added benefit that explicitly-allowed, value-adding software activity can run.

Disable USB always on

• Yoga 310 - how to turn off Always-on USB ? | English Community-Lenovo Community
  • Old Codger
    • I know of only 3 factors that may affect whether the USB is powered or not:
      1. Always-on option in the BIOS
      2. Always-on option from within the Lenovo Vantage app
      3. Whether attached to mains or running on battery
    • I have tested all combinations of the above, and there is no change - this appears to be almost 'hard wired' into the hardware.
    • I have also disabled fast start-up and wake-on-LAN, as someone indicated that these would allow some parts of the machine to be 'active', consuming power and cause USB's to be on as well.
  • Old Codger
    • After spending months trying to find the problem (including 4 hours re-searching and re-booting today) I have managed to find a solution that works for me - this involves making sure that anything within the PC that might require the USB port(s) or other sections of hardware to be powered up when the machine is shut down is disabled. So far as I know, this covers: 
      1. Disabling Always-on USB in the BIOS (if applicable on your machine)
      2. Disabling Always-On USB in Lenovo Vantage
      3. Disabling 'Fast start-up' in the power options
      4. Disable 'Wake On LAN' in the settings for the Ethernet Card
         • NOTE: the Wake On LAN change may not be required, I figured I'd post the solution before wasting anyone else's time !.  
      5. Disable 'Boot from USB' in the BIOS
         • It is this one that finally did the trick for me. Why the USB has to be powered to allow booting from USB is a mystery ..... 
    • Also, please note: This works only if the machine is 'shut down', not in the sleep modes. It may also be necessary to change the 'what the power button does' and 'what closing the lid does'  options in Windows  to make sure that they are acting appropriately. If they send the machine to sleep, then the USB may still remain on. 

Overview

Below are the actions I did to prevent my system waking up on it sown, but it was being caused for me by the Mouse.