Very slow mouse movement

[quaintdev]

First of all thank you for creating this.

For some reason I am not able to mouse using this. It moves very slowly. Click and scrolling is responsive but just moving the pointer from one point to other is painstakingly slow. Any suggestions?

[BLeeEZ]

I encounter sometimes a lag in input. This lag effects all input types, keyboard key presses and mouse movement/button clicks. This lag relates to bluetooth connection timeouts. For example if a client is shutting down the raspberry pi tries to keep the connection but this leads to input lags to the other clients.

Nevertheless this sounds not like the behaviour you are describing.
Have you tried to disconnect and reconnect to the client?

[quaintdev]

Yes I have tried reconnecting but the mouse still lags. I am using a wireless keyboard and mouse that has a USB receiver plugged into pi. Could this be an issue?

Another thing I wanted to point out was that I have high DPI set for my mouse. I will try changing it and see if it changes anything.

[BLeeEZ]

I am using a wireless mouse with USB receiver plug too (Logitech MX Master 3). Maybe the high DPI setting of the mouse can lead to connection issues.

[quaintdev]

I tested this on Mac, Android, Linux and all of them have slow mouse movement. I also tried reducing DPI setting to no avail. I am using Dell receiver KM5221W.

[polyphonicprayer]

I have the same issue as @quaintdev. I've tried different mice (all Logitech with USB dongles) on different OSes (Windows 10, Linux Mint, Android) and the slowdown is always present.

[quaintdev]

@polyphonicprayer could you try changing polling interval as per this post. It seems lot of people solved the using using approach mentioned in article. You can change polling interval from 0 to 8.

I tried it but it did not work for me. Also I do not have a desktop environment on my Pi so I have no way of knowing whether the mouse is slow because of OS or it is slow because of rpi-kvm.

[polyphonicprayer]

@quaintdev Thank you for a response. Unfortunately, the issue still persists.

[BLeeEZ]

I currently have some lag problems too. But for me the problems only occur on my MacBook. And the mouse lags come from a bad bluetooth connection quality. Can you check if the problem still occurs when only one device is connected to rpi-kvm and on your host device only rpi-kvm is connected to it via bluetooth? Are both devices close together or are there any obstacles in the way?