Windows 10: DFx Directed Power Management Framework questions for USB Devices

l 1.The USB fingerprint device, which supports Selective suspend the device enters suspend after 5 seconds, but we found that the driver of the DFx feature has more power consumption than the unsupported DFx driver .



The situation is as follows: The yellow part is what we have doubts about


Before Driver


Support DFx Driver


Is there a registered finger


OS send capture data IOCTL


Status


Status


Enrolling fingerprint


Yes


Yes


Power consumption drops after 5 seconds.


Continuous power consumption


No


Yes


Power consumption drops after 5 seconds.


Continuous power consumption


Lock screen


Yes


Yes


Power consumption drops after 5 seconds.


Continuous power consumption


No


No


Power consumption drops after 5 seconds.


Power consumption drops after 5 seconds.


S3

modern standby


Yes


Yes


Power consumption drops after 5 seconds.


*Manual enter S3:Power consumption drops after 60 seconds.

*use command enter S3:Power consumption drops after 5 seconds.


No


No


Power consumption drops after 5 seconds.


Power consumption drops after 5 seconds.


l Q2. Why are the power saving behaviors different between*manual enter S3Start menu -> power -> sleep and*command.\pwrtest.exe /directedfx /device”xxxx”?

l Q3. According to the above, in the specification of power consumption measurement, Which one should be the main one? Manual enter S3 or use command enter S3

l Q4. Does Microsoft have a DFx power consumption spec?

:)

 

USB devices have yellow marker in device manager under 'Other devices'

Hi Roger,



Thank you for posting your query in Microsoft Community. Let me help you.

• 
  What is the make and model of your devices?
  

I suggest you to perform the following troubleshooting steps and check if it helps.

Method 1: Hardware and Devices Troubleshooter.

I suggest you to run hardware and devices troubleshooter and check.

• 
  Press the Windows + X,
  and click on Search.
  
• 
  Type troubleshooting and select
  Troubleshooting.
  
• 
  Click on Hardware and Sound and select
  Hardware and Devices
  
• 
  Click on Next to run the troubleshooter
  

Method 2: Update USB Controllers.

To update the USB Controllers from Device Manager follow these steps.

• 
  Go to Device manager in control panel.
  
• 
  Select Device manager and a Device Manager window will pop-up.
  
• 
  Double Click on USB Controllers to expand.
  
• 
  Right click on the USB Controllers that is listed and select Update.
  

I hope the information helps. If you need any further assistance, please feel free to contact us again. We will be happy to assist you accordingly.

 

USB Device taking up too much power, must disconnect

Hi,

Thank you for posting in Microsoft Community.

I would suggest you to reinstall the USB drivers and check if it helps.

• Press Windows Key + X, and select Device Manager
• Expand the Universal Serial Bus Controllers section by clicking on the
  "+" sign.
• Uninstall each of the devices under the
  USB Controller section by right-clicking on each one, and then clicking
  Uninstall.
• Close the Device Manager and
  restart your computer. Windows will automatically re-install the USB controllers in your computer, without you having to do anything further. Your computer will now run USB devices properly.

Also update chipset drivers for USB for windows 10 from the manufacturer’s website.

I suggest you to run the Power troubleshooter and check if it helps.

The power troubleshooter can automatically detect and fix any incorrect power settings. Refer to these steps to run this troubleshooter:

• Type Troubleshooting in the search box.
• Click on Troubleshooting and select the
  view all option on the left pane.
• Click on Power troubleshooter and follow the prompts.
  

Hope it helps. Please reply to us with the status of the issue.

Thanks.

 

DFX Audio Enhancer

It seems that there is incompatibility between DFX Audio Enhancer 12 and the Creator's Update.

We strongly suggest contacting DFX Audio Enhancer 12's developers for this issue to be resolved.

Otherwise, we need to wait for future update that will fix the compatibility issue between DFX Audio Enhancer 12 and the Creator's Update.

If you have other concerns, don't hesitate to get back to us.