Mouse acceleration in Plasma 6 Wayland

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1

Hello! I have a couple of questions regarding mouse acceleration under Wayland. In the Plasma 6 settings, under the Mouse and Touchpad settings, for my mouse, I have set the Acceleration Profile to None.
However, using libinput list-devices as root, under my mouse device, the Accel profiles setting reports flat *adaptive custom. The mouse is a Steelseries Rival 3. Here’s the output of the command, specifically for the mouse.

My questions are:

  1. Is mouse acceleration turned on or off?
  2. If it is turned on, how exactly could I turn it off?

I run openSUSE Tumbleweed, last updated this past weekend, on an Acer Nitro 5 AN515-45-R7YG.

2

This command shows the default values. Parameters are really per-application, so only application controlling mouse knows them.

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3

I see. Is there a way to change these default values or not?

4

Not without recompiling libinput.

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5

This blows. Thanks for helping me.

6

The system settings should be all you need from a desktop POV. The compositor (KWin) uses the libinput API to make the applicable config changes.

7

I see. I asked this question because I’ve felt like there is mouse acceleration while playing a game called osu!, but I think I was imagining things.

8

Yes, but the Plasma System Settings only applies to the Wayland compositor and associated KDE apps (eg Dolphin). The game you’ve just referenced likely uses it’s own settings.

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I see. Not sure about this, but I think the game just uses whatever the compositor gives out. I will have to ask about this, though, and this goes beyond the scope of this thread. Thank you for helping me out and explaining how this works.

10

I recommend asking your question(s) in the osu! forum. Someone is bound to be able to advise more specifically. :slight_smile:

11

Yes, I think you are right about that on reflection. Certainly it is libinput that handles the input events, but the Wayland compositor manages the mouse input and acceleration settings etc…and so I assume that these settings are applied uniformly across all applications running in the Wayland session.

12

I am actually a member on those forums and I have my doubts about that. I can ask on the GitHub page for game, though. That would be more appropriate.

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13

@winnyace get a Wacom tablet and a two button USB keypad, likely more configuration options… :wink:

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14

Been playing with mouse for a very long time, so I got super used to it. I might get a analog keypad, maybe. I kind of want the whole keyboard to be analog too, though. :smile:

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