sicchai
2 Bronze

XPS 13 7390 2 in 1 bluetooth keyboard and mouse lagging after 4/2020 bios update

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Hi

2 Days ago, I updated my XPS 13 7390 2 in 1 with the latest bios (BIOS 1.3.1). Since then my Logitech keyboard K850 and Mouse M720 Triathlon has been experiencing lagging issues. Some times it takes like a second for the keyboard and mouse (especially the mouse) to activate when they are connected to the laptop with bluetooth. But when I connect them with wireless dongle (this keyboard and mouse support both types of connection), there is no lagging issue. This problem appears only after I have updated the bios. In fact, I just tried connecting another bluetooth mouse (Logitech M557) to the laptop, and it is also seeing the same problem. It seems like the latest BIOS is doing something strange to the bluetooth part of the machine. 

David

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DELL-Cares
Moderator
Moderator

Re: XPS 13 7390 2 in 1 bluetooth keyboard and mouse lagging after 4/2020 bios up

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Hey there! Please try the following: 
Launch the Device Manager and uncheck the option Allow the computer to turn off this device to save power in the power management setting of Intel Wireless Bluetooth

Hopefully that will stop that lagging issue you're facing. 


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20 Replies
sicchai
2 Bronze

Re: XPS 13 7390 2 in 1 bluetooth keyboard and mouse lagging after 4/2020 bios up

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Update:

I forgot to say:

In addition to the BIOS update, I have also updated the Killer Wireless AX1650 UWD Bluetooth Driver to A05 at the same time. This is probably even more pivotal than the BIOS update.

 

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sicchai
2 Bronze

Re: XPS 13 7390 2 in 1 bluetooth keyboard and mouse lagging after 4/2020 bios up

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Update:

Per the request of DELL Care, I tried rolling the BIOS back to 1.1.3, and the lag was much much shorter. With 1.3.1 (the current BIOS), the lag lasts for at least 2 seconds. But with 1.1.3, there is still a lag, but it lasts for only a very short time, like between 1/10 and 1/5 of a second. So it is definitely the BIOS. I have even tried turning off both the C-State and the background panel refresh things, no differences.

DELL-Cares
Moderator
Moderator

Re: XPS 13 7390 2 in 1 bluetooth keyboard and mouse lagging after 4/2020 bios up

Jump to solution

Hey there! Please try the following: 
Launch the Device Manager and uncheck the option Allow the computer to turn off this device to save power in the power management setting of Intel Wireless Bluetooth

Hopefully that will stop that lagging issue you're facing. 


Social Media Support

#IWork4Dell
To help us troubleshoot, click our Dell-Cares name and send us a private message with your Dell PC or Monitor Service Tag number

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mux8
3 Silver

Re: XPS 13 7390 2 in 1 bluetooth keyboard and mouse lagging after 4/2020 bios up

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That option does not exist on the slow ring version of Windows 10 insiders.

sicchai
2 Bronze

Re: XPS 13 7390 2 in 1 bluetooth keyboard and mouse lagging after 4/2020 bios up

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It works! The lag is gone. Thanks.

 

DELL-Cares
Moderator
Moderator

Re: XPS 13 7390 2 in 1 bluetooth keyboard and mouse lagging after 4/2020 bios up

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Glad to hear this. Do reach back to us if you have any query. ^AM


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mux8
3 Silver

Re: XPS 13 7390 2 in 1 bluetooth keyboard and mouse lagging after 4/2020 bios up

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Please DELL look into this. On Windows Insider Slow Ring, the option is now gone on device manager.

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DELL-Jesse L
Community Manager
Community Manager

Re: XPS 13 7390 2 in 1 bluetooth keyboard and mouse lagging after 4/2020 bios up

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mux8,

 

Thank you we will look into this.

 

Dell-Jesse L

 

 

 



 

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DELL-Jesse L
Community Manager
Community Manager

Re: XPS 13 7390 2 in 1 bluetooth keyboard and mouse lagging after 4/2020 bios up

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mux8,

 

Please contact Dell Software team at 1 (800) 624-9896.

 

Dell-Jesse L

 



 

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