Bluetooth mouse cursor very laggy

[Pierre Equoy]

Image: 19.10 beta – http://cdimage.ubuntu.com/daily-live/20190926.1/eoan-desktop-amd64.iso
Device: Dell XPS 13 7390 (201908-27305)

Steps to reproduce
==================

1. Go to Bluetooth Settings
2. Pair a Bluetooth 4 mouse

Expected Results
================

Bluetooth mouse is connected and can be used smoothly.

Actual Results
==============

Bluetooth mouse is connected, but the cursor movement is very laggy, making it unusable.

Failure rate: 100%

Tested with 2 different mice:

- Logitech M585
- Microsoft Designer Mouse (model 1678)

These two mice work fine with another device.

Additional Info
===============

$ uname -a
Linux u-XPS-13-7390 5.3.0-10-generic #11-Ubuntu SMP Mon Sep 9 15:12:17 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

See sosreport archive for more information

[Pierre Equoy (pieq)]

Here is a video demonstration. Both mice are already paired and connected.

It's not extremely clear on the video, but it's very obvious when using it.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1846159

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Pierre Equoy (pieq)]

Logs are already captured and available in attachment `sosreport-u-XPS-13-7390-20191001145726.tar.xz`.

Marking as `Confirmed`.

[Kai-Heng Feng (kaihengfeng)]

LP: #1824559?

[Felipe Butcher (felipebutcher)]

Funny I was having this problem, or at least similar, and I found out the wifi was interfering. Moving the router away from the laptop resolved the issue.