Arch Linux

Rapti

Member

Registered: 2016-03-05

Posts: 8

[Solved] High-res scrolling is very jumpy

I'm using KDE Plasma on my Arch Linux machine, which I always keep up-to-date. My mouse is a Logitech Master MX and I use Solaar to manage it.
A while ago, some sort of high-precision scrolling functionality was added. I'm not sure if it was introduced by the kernel, by Plasma, by Solaar, or some other package. While I like this in theory, I'm having issues with it: It's very jumpy. I really like my mouse's ability to unlock the scroll wheel, but it is so sensitive that slightly moving my mouse can trigger mouse wheel events even though I'm not touching it. That results in scrollable content under my cursor constantly jumping up and down. This wasn't an issue before high-precision scrolling was introduced, and it somehow also isn't an issue in Windows, which has offered high-precision scrolling for much longer.

I have tried searching for solutions to this problem, but so far I haven't found anyone else having this issue. Are there any solutions I can try? If disabling high-precision scrolling altogether is the only option, how can I do that? Thanks!

Last edited by Rapti (2021-12-18 17:50:56)

seth

Member

From: Won't reply 2 private help req

Registered: 2012-09-03

Posts: 77,365

Re: [Solved] High-res scrolling is very jumpy

Related to https://bbs.archlinux.org/viewtopic.php?id=269787 ?

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Rapti

Member

Registered: 2016-03-05

Posts: 8

Re: [Solved] High-res scrolling is very jumpy

Yes, exactly. Thanks! Following the links I found out that this was a problem with libinput and that it has been fixed already. The current version of libinput in extra doesn't seem to have the fix yet, but installing libinput-git from the aur instead works for the time being.

mcloaked

Member

From: Yorkshire, UK

Registered: 2012-02-02

Posts: 1,360

Re: [Solved] High-res scrolling is very jumpy

I am a bit confused about versions here - the current AUR version of libinput-git at https://aur.archlinux.org/packages/libinput-git/ is version 1.12.3 from February 2021, whereas the version in extra at https://archlinux.org/packages/extra/x86_64/libinput/ is at  1.19.3 last updated 5 days ago - so how does the old aur version have the fix from 10 months ago but the current extra version within the last week does not?

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Mike C

Rapti

Member

Registered: 2016-03-05

Posts: 8

Re: [Solved] High-res scrolling is very jumpy

I was confused by that as well, but it's probably just outdated version information in the PKGBUILD. I just rolled back to libinput from extra and that did bring back the issue. After all, the build process will always just pull and compile the main branch in its current state, no matter which version is mentioned in the PKGBUILD.

V1del

Forum Moderator

Registered: 2012-10-16

Posts: 25,310

Re: [Solved] High-res scrolling is very jumpy

@mcloaked the AUR website only updates when the PKGBUILD is updated. By definition of what it is if there's no need to update the build instructions, a -git package can be installed and reinstalled indefinitely and it will always pull the latest development branch and changes, at the time of running makepkg.

mcloaked

Member

From: Yorkshire, UK

Registered: 2012-02-02

Posts: 1,360

Re: [Solved] High-res scrolling is very jumpy

@mcloaked the AUR website only updates when the PKGBUILD is updated. By definition of what it is if there's no need to update the build instructions, a -git package can be installed and reinstalled indefinitely and it will always pull the latest development branch and changes, at the time of running makepkg.

OK thanks. Though in this case the package in extra was only updated a few days ago so presume any commits to fix the issue must be very new and presume will go into the next stable version?

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Mike C