[kwin] [Bug 386811] No way to change cursor speed in Wayland

[Martin Flöser]

https://bugs.kde.org/show_bug.cgi?id=386811

--- Comment #4 from Martin Flöser  ---
I implemented the mapping from the old config to libinput in KWin. Given your
bug report I simply assumed you were not aware that the config option in the
KCM performs the mapping which you had in your xorg config. That's fine, nobody
needs to know every option. But if there is one and we get a bug report for
that option missing the bug is marked as invalid. If you want to know: I even
checked the source code this morning to verify that the config goes to the
correct accel thingy in libinput.

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[kwin] [Bug 386811] No way to change cursor speed in Wayland

[Roman Gilg]

https://bugs.kde.org/show_bug.cgi?id=386811

Roman Gilg  changed:

   What|Removed |Added

 CC||subd...@gmail.com

--- Comment #3 from Roman Gilg  ---
There is currently a rewrite of the mouse/input kcm happening to put it on par
with the touchpad KCM in Wayland: https://phabricator.kde.org/D8168

That means: In Wayland session using libinput directly to change mouse speed /
acceleration profile.

Currently the mouse speed (or is it the acceleration?) on KWin Wayland is
controlled via a hack by the same value as for X.

There is some difficulty for me to grasp on how Windows, X and libinput each
define speed, acceleration and acceleration profile (and threshold on X). So
I'm not sure that in the end how libinput will handle it is what you're asking
for in this bug report.

Maybe you can clear this up? See here for how libinput doc describes the
terminology:
https://wayland.freedesktop.org/libinput/doc/latest/pointer-acceleration.html

Note also that Martin for sure wasn't trying to be insulting to you. He
probably just has the same difficulties as myself to understand what's the
difference between libinput's acceleration vs. acceleration profile vs. speed.
Closing the issue doesn't mean your feedback is dismissed. After we understand
(with your help) the problem more properly we can reopen the issue at any time.

So please reply, if the rewrite of the input kcm with libinput would already
solve your issue or if it is something else. I believe gamers normally want to
have something like - in Windows terminology - "0 acceleration" (in libinput/X
terminology: a flat profile) and only change the overall mouse cursor - in
Windows terminology - "speed" (in libinput terminology: acceleration). So the
rewrite might just be what you're asking for here.

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[kwin] [Bug 386811] No way to change cursor speed in Wayland

[Salsa Doom]

https://bugs.kde.org/show_bug.cgi?id=386811

--- Comment #2 from Salsa Doom  ---
(In reply to Martin Flöser from comment #1)
> Please try using the mouse settings in systemsettings. It is mapped to
> libinput acceleration.

Hi Martin, thanks for replying. But you invalidated my bug report before
understanding it. I specifically said this was NOT ABOUT MOUSE ACCELERATION. 
Its a bit insulting when one takes the time to write a one of these up, and
have it invalidated without someone bothering to understand the issue. 

First, there isn't a "mouse settings" in system settings. So I'll assume you
mean "Input Devices" since that seems to be where mice are dealt with. In that
area I find "Pointer acceleration" -- the very same thing I said I was not
looking for, and "Pointer threshold" which is related. If you look at the x11
config file that, which has the functionality I am attempting to replicate, it
clearly says "flat" acceleration profile -- ie, none. I made it very clear that
I was not talking about mouse acceleration. 

This is NOT INVALID. In the future please don't be so ready to invalidate these
things if you don't want community interaction to be discouraged.

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[kwin] [Bug 386811] No way to change cursor speed in Wayland

[Martin Flöser]

https://bugs.kde.org/show_bug.cgi?id=386811

Martin Flöser  changed:

   What|Removed |Added

 Resolution|--- |INVALID
 Status|UNCONFIRMED |RESOLVED

--- Comment #1 from Martin Flöser  ---
Please try using the mouse settings in systemsettings. It is mapped to libinput
acceleration.

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[kwin] [Bug 386811] No way to change cursor speed in Wayland

[Arthur Țițeică]

https://bugs.kde.org/show_bug.cgi?id=386811

Arthur Țițeică  changed:

   What|Removed |Added

 CC||arthur+...@cloud.titeica.ro

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