Question Laptop waking up from suspend mode by itself

[rick_meadows]

Hello, all. I hope someone can help me solve this weird issue!

I've recently started using suspend mode on my laptop instead of turning it off so I can get back to work faster. However, I've noticed it has a habit of going out of suspend mode by itself seemingly at random. I simply walk by the office and see that the screen is on.

I have done some Googling on the issue and done the following to no avail:

• disabled wake timers on power settings
• disabled wake on LAN (and the whole ethernet driver along with it since I don't use it)
• used powercfg -waketimers in Command Prompt and the system told me there are no wake timers active
• used Get-ScheduledTask | ? {$_.Settings.WakeToRun} | Out-GridView in Powershell and the listed tasks are all disabled

I have checked Event Viewer at the times the laptop woke up by itself and the origin is apparently Intel® USB 3.0 eXtensible Host Controller - 1.0 (Microsoft), which isn't helpful since I normally activate the computer by using an external USB keyboard myself.

By using powercfg -devicedisablewake and Device Manager, I have disabled every external device that can wake the laptop. Now by looking at Event Viewer, the times it wakes up by itself have the origin set as Unknown.

Can someone help me make sure this computer stops waking up by itself?

Thanks in advance.

 

[rick_meadows]

Also have you checked in your bios to see if there is any choice to disable usb host wake?

Yes, but that option needs to be enabled so I can wake the system using my USB keyboard, since I use the laptop with the lid closed. Isn't there a way to apply it to only certain devices?

 

[rick_meadows]

Update: I did further testing and I think I can narrow it down to: the laptop is waking up whenever it is plugged into power (or the external monitor is plugged into power). I just tested this and it seems like its default behavior. Is there a way to disable that or am I out of luck?

I couldn't find anything obviously helpful in the BIOS except for a setting about making it wake up when opening the lid, but that didn't make any difference. I'm open to use some external tools to correct this behavior too.

 

[rick_meadows]

Try this:
disable UvoSvc service.

1. Run Command Prompt as administrator.
2. Type sc stop “UsoSvc” and press Enter.
3. Type sc config “UsoSvc” start= disabled and press Enter.

I have done that, but sadly the issue persists.

Also have you checked in your bios to see if there is any choice to disable usb host wake?

I do have a USB waking setting, but I need that enabled because I need to be able to wake the computer up using an external keyboard. The laptop lid stays closed while I use it, so this is the only way to wake it when I actually want it to wake.

 

[rick_meadows]

Update:

I now understand that the computer is waking up due to a feature called wake-on-AC, or wakes up when it receives power (or recovers power after a power loss). I'd like that not to happen, but there are no settings for it in the Control Panel nor in BIOS settings.

I've made a compromise with myself to go back to using a lock screen/login screen after coming out of sleep mode since at least that screen stays up for just a couple of seconds when the computer wakes up -- or so I thought. For some reason it stays on for several minutes and no matter how many registry settings or cmd commands I use I can't change the amount of seconds the login screen stays up to something shorter. It's getting a bit frustrating to have my computer insist on doing what it wants no matter what settings I use.

To summarize:

- is there an effective way to disable wake-on-AC?
- how can I make the login screen that appears after the computer comes out of sleep mode shorter? something like 5 seconds?

Thanks in advance.