Dell XPS 15 9500 Bluetooth Mouse Laggy/Freezing

Question

Hi,

I'm having issues with my XPS 15 9500 and my Logitech MX Anywhere 2S mouse. This problem has only recently started (~1.5 month) and it causes the mouse cursor to move in a "jerky" way and it will also freeze frequently. You can actually see the mouse has disconnected from the laptop for a few seconds and then reconnected, the mouse is absolutely fine on other laptops.

I have tried everything:

I have updated the Killer AX1650s drivers, rolled back the drivers, uninstalled and then reinstalled etc...
I have tried the following registry changes in this post: https://www.dell.com/community/XPS/XPS-9310-Bluetooth-lag-with-Logitech-MX-Keys-MX-Master-3/m-p/7795277/highlight/true#M77883
I have tried disabling power saving on the Bluetooth device.
I have updated to the latest BIOS.
Support assist drivers are up-to-date.

Seems to be very similar to issues in the following posts:

https://www.reddit.com/r/Dell/comments/jldtnf/new_xps_13_9310_bluetooth_mouse_lags_and_stutters/

https://www.reddit.com/r/DellXPS/comments/p7q9m3/dell_xps_9510_mouse_and_keyboard_bluetooth_lag/

https://www.dell.com/community/XPS/XPS-9310-Bluetooth-lag-with-Logitech-MX-Keys-MX-Master-3/m-p/7781834#M76708

Has anyone managed to find a fix?

Dell, this isn't acceptable for such an expensive laptop.

Alan

MarkTra · Accepted Answer

I had this problem with an MX Anywhere 3. I fix it by changing the 'Allow the computer to turn off this device to save power' in the bluetooth settings of the Intel Wireless Bluetooth device.

alancharman · Answer

I have since discovered that when I connected a Bluetooth headset to the laptop, the mouse issues go away. As soon as I disconnect the headset the mouse issues return.

Somehow the headset is keeping the Bluetooth connection "alive/active" but when it is the mouse alone the connection is intermittent.

Any ideas anyone?

I am speaking to Dell support (who have been very responsive) and assisting with some tests, I am awaiting their response.

David156 · Answer

Hi Alan - any updates on this? I am having the issue and was wondering if you managed to find a fix. Thanks so much, Dave

SCDellTech · Answer

I have the same issue on a August purchased XPS 15 9500

Riggedy · Answer

Same.... Nov. 2020 XPS 15 with bluetooth Dell Mouse and Keyboard.... issue keeps randomly happening since purchased... a year now.

mjmac1985 · Answer

I agree that this issue is unacceptable. I'm having the same problem. The track pad is very smooth but the Bluetooth mouse is a choppy mess. Dell XPS 15 9500 Logitech Anywhere 2S

Roderick030 · Answer

Hi Alan,

Ok the registry options worked for me! And did you also add the missing registry entries, and restart your PC? I needed to both before it worked for me. Hope this also helps you.

I also have tried your trick to connect a Bluetooth headset and it works, but only if there is a audio send over the device, so indeed it needs to be active!

It seems the BT goes into a power saving very fast. I have tried the different drivers (intel vs killer) as well, but no luck.

So in the end the registry trick worked to disable that power saving bug.

I hope you have solved this.

MajZoa · Answer

Wow I'm seeing many people are having this issue. At least it's reassuring I didn't get a defective 4500$ laptop. see my post: Dell Precision 5760: Bluetooth mouse issues - Dell Community

MajZoa · Answer

Hey have you managed to solve the issue? Dell support and engineers are clueless so far! I'm desperate

DELL-Cares · Answer

Hello, I see you are looking for technical assistance. If you need our help, you can start a private/direct message with us and we will be happy to assist you.

LoLLoMe · Answer

this solution seems to have worked in my case.

SoCRaT3000 · Answer

Worked like a charm, thanks a lot!

XPS

Dell XPS 15 9500 Bluetooth Mouse Laggy/Freezing

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