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Thinkpad 10 keeps powering usb port whilst sleeping??

2020-01-16, 17:03 PM

Hi - new to the forums.

 

I am using my thinkpad 10   ( 20C1 ), as a carputer.

 

I am having a problem with usb power diuring sleep.

 

The tablet is connected to a powered usb hub and doesn't need power from the tablet for the peripherals

 

Unfortunately, when I sleep the computer  for a while, it continues to power the hub on its internal battery, even though both the hub and the tablet are removed from external power when the car ignition is off.

 

The hub has 7 peripiherals attached, so does begin to drain thetablet  battery :-(

 

I do not wish to shutdown the tablet for  shorter periods away, and hibernation does not play with the software I am using.

 

So......... :-)

 

I have made sure that boxes are ticked in the   '''usb suspend when  asleep'', and also for the  USB root hub in device manager.

 

I have also attempted a registry change.

 

None of these options change the behaviour- the tablet still provides power to the hub when asleep.

 

The thinkpad BIOS is basic , and doesn't include any USB power management.

 

Also , the port on the side of the tablet is NOT an ''always on'' port.

 

Am I missing something?

 

Would appreciate someones experience.

 

Many Thanks

 

rick

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1815 Posts

08-02-2018

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Re: Thinkpad 10 keeps powering usb port whilst sleeping??

2020-01-16, 17:36 PM

Hi ricksavage! Welcome to our forums community.

When did this problem start? Were there any recent changes or any updates installed before the issue arise? Just to make sure everything is up to date, run the update through the Vantage app and install all detected updates.

Regards



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Re: Thinkpad 10 keeps powering usb port whilst sleeping??

2020-01-16, 22:44 PM

HI,

 

Thanks for the reply.

 

All up to date according to Vantage.

 

The tablet  is second user, and the windows 10 version is the one that came with it.  ( 1909 )

 

I disable Windows  driver updates because it messes with the drivers for my set up and is a pain:-)

 

So...still no change with the usb port, it is still ( trying ) to provide power to the hub for all the peripherals :-(

 

Any Ideas?

 

Thanks

 

Rick

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195 Posts

03-03-2017

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Re: Thinkpad 10 keeps powering usb port whilst sleeping??

2020-01-20, 18:32 PM

Hi ricksavage

 

If your tablet is asleep. Then it is not off. If it is not off, then providing power to the USB is exactly what I would expect it to do. I could be wrong, but I don't think you are going to find a solution other than turning the tablet off to this issue.

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Re: Thinkpad 10 keeps powering usb port whilst sleeping??

2020-01-20, 19:00 PM

Check here

https://www.groovypost.com/howto/fix-usb-ports-powered-sleep-mode/

 

https://www.pcworld.com/article/3045567/how-to-keep-charging-your-usb-devices-past-your-pcs-bedtime.html

 

For some people having USB power during sleep is normal for others it does not seem to be.

 

D

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Re: Thinkpad 10 keeps powering usb port whilst sleeping??

2020-01-22, 3:13 AM

THanks for the reply,

 

Sadly, have tried all these

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