Ubuntu – Kubuntu: disable mouse acceleration and adjust mouse speed

kdekubuntumouse

I would like to disable mouse acceleration. I don't like it when the same physical distance traveled by the mouse results in different screen distance depending on how quickly you move the mouse.

Also, I would like to adjust cursor speed to my liking.

The problem is that Kubuntu doesn't seem to allow either:

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Mouse acceleration cannot be set to 0 and there's not an option for mouse speed/sensitivity.

So, the questions are:

  1. How do I disable mouse acceleration completely?
  2. How do I adjust mouse speed?

Best Answer

How to adjust mouse speed in KDE
  • without enabling mouse acceleration
  • and only using the settings dialog (no console, no config files)

This is a colloquial summary of exhuma's answer, don't forget to upvote it.

In KDE, mouse acceleration is not logarithmic. That is, it has two constant mouse speeds: non-accelerated and accelerated. It switches from one to another when you jerk the mouse quickly enough.

The first speed is non-configurable (at least, from GUI). The second speed is configurable.

The solution is:

  1. Set "Pointer threshold" to 0. As a result, the second speed will be applied at all times.
  2. Adjust "Pointer acceleration" to make that speed higher or lower.

You will end up with a constant, non-dynamic cursor speed adjusted to your liking.

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