Windows 10: Bluetooth Keyboard Latency Issue after Win 10 laptop wakes up from sleep

Hey everyone, I have searched this forum and googled everywhere else for a solution to a very specific issue with Bluetooth keyboard connection to Win 10 laptop but so far no luck.


I have a Win 10 home edition laptop with the latest Win 10 release as of today Aug 2020 and I am experiencing Bluetooth keyboard slow response to key strokeafter the laptop wakes up from sleep. The first few key strokes have no immediate response and then 1-2 seconds later the letters show up all together. Then afterwards typing is fine until a short 1-2 seconds' pause after finishing a sentence the symptom repeats itself. This becomes very annoying when I browse the web page and use control key and mouse wheel to zoom in and out. First a couple of scrolls won't zoom pages but scroll up or down to undesired location instead. Then the page starts zooming in and out at wrong timing.


Here are troubleshooting methods I have tried so far:


1 I restart the laptop, the BT keyboard just works fine. Once I put the laptop to sleep and wake it up, the problem starts and persists unless I reboot the laptop. So, it seems the problem only happens after sleep/wake cycle.


2 When the problem starts, I tried another BT keyboard. The problem persists on the other BT keyboard. So, the problem is not for a specific BT keyboard.


3 I connected my BT keyboards to my MacBook Pro and iPhone. Both work perfectly fine all the time without latency. Sleep/Awake or not. So, the issues are not my BT keyboards.


4 I ran Win 10 troubleshoot on both Power, Keyboards and Bluetooth. None issues were found.


5 I turned off BT and then back on. The problem persists.


6 I went to Intel website to download the latest greatest BT driver. Reboot my laptop. Keyboard works fine, but after sleep/awake, the problems starts and persists. So it is not BT driver issue.


7 I check Win 10 update and security. Everything is most up to date. No updates available for installation.


8 I went to device managers to make sure bluetooth device power management option shows "don't turn off device to save batteries".


9 I reset keyboard to manufacture setting just in case. Not surprisingly it does not solve the problem.


10 I ran 'sfc /SCANNOW' on Windows command. It shows no incompatible issues.


I am really out of ideas now. Again, the BT keyboard latency issues only shows after wake up from sleep.


Wonder if anyone can offer more insights. Thanks much in advance !!!

:)

 

ASUS Laptop Won't Wake from Sleep Mode

OS Name Microsoft Windows 10 Pro
Version 10.0.18363 Build 18363
System Manufacturer ASUSTeK COMPUTER INC.
System Model UX490UAR
System Type x64-based PC
SMBIOS Version 3.0

Problem: about 80% of the time, my laptop won't wake up from sleep mode via keyboard press or mouse move/click. I seem to be missing many common features in power plan too, even after fresh Windows 10 install.

Troubleshooting Steps:

1. Reinstalled Windows 10 (clean)
2. Updated all drivers
3. Replicated on multiple Windows 10 versions, updates
4. BIOS latest version
5. No USB devices attached, ever. Only USB-C power and bluetooth mouse
6. Disabled "fast startup" in control panel

 

wake from sleep issue in windows 10

Hi,

Thank you for posting your reply. Apologize for the delay in response.

I suggest you to check which devices are configured to wake up the computer from sleep by following the steps below:

• Right click on Start icon and select Command Prompt (Admin).
• Type the command line below:

Powercfg /devicequery wake_armed

3. Check if the devices (Keyboard, Mouse, Ethernet cable) are listed.

If the system is not going to sleep and going to Hybernate, the only option to wake up is to press the Power button.

Hope the information is helpful.

 

Microsoft Bluetooth Keyboard not waking PC up

Hi,



Thank you for writing to Microsoft Community Forums.



I understand that Microsoft Bluetooth keyboard doesn’t wake the computer from sleep or hibernate. I’ll certainly help you with the issue.



However, please let us know:

• Are you able to wake the computer using any other keyboard?
  
• What is the complete model number of the Microsoft keyboard?
  

I would suggest you to refer the troubleshooting steps mentioned in the article
Troubleshoot problems waking computer from sleep mode.



Note: Modifying BIOS/ complementary metal oxide semiconductor (CMOS) settings incorrectly can cause serious problems that may prevent your computer from booting properly. Microsoft cannot guarantee that any problems
resulting from the configuring of BIOS/CMOS settings can be solved. Modifications of the settings are at your own risk.



You can also try running the power troubleshooter and check if that helps.
Refer the steps mentioned below:

1. Press Windows logo key + I, to open
   Settings.
   
2. Click on Update & Security, and select
   Troubleshoot from the left pane.
   
3. Scroll down, look for Power troubleshooter, click on it and select
   Run the troubleshooter.
   
4. Follow the on-screen instructions.
   

Let us know how it goes.



Regards,

Nikhar Khare

Microsoft Community - Moderator