libinput-fix

Patch for libinput touchpad driver to fix annoying issue with tap & drag causing ghost clicks, because of a hardcoded timeout that's set too high.

This repository contains:

• A modified PKGBUILD (based on upstream Arch packaging)
• A patch (tap-tuning.patch) that adjusts touchpad behavior

🔧 Initial build & install

makepkg -si

🔄 Update workflow

🟢 When a new libinput version is released

1. Update PKGBUILD

Open the file:

nano PKGBUILD

Find:

pkgver=1.31.0

Update to the new version:

pkgver=1.32.0

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2. Update checksums (if needed)

If the source=() array changed or checksums are enforced:

updpkgsums

If using SKIP, this step is not required.

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3. Build the package

makepkg -s

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4. Update local repository

Copy the built package:

cp libinput-*.pkg.tar.zst ~/repo

Update the repo database:

cd ~/repo
repo-add customrepo.db.tar.gz *.pkg.tar.zst

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5. Upgrade system

sudo pacman -Syu

The patched version will then be installed.

Modified Constants

DEFAULT_DRAG_TIMEOUT_PERIOD_BASE: Defines how long libinput waits after a tap before deciding whether a drag should start.

• Higher value → more forgiving, easier to start drag
• Lower value → stricter, reduces accidental drags

DEFAULT_DRAG_TIMEOUT_PERIOD_PERFINGER: Adds additional delay depending on the number of fingers used:

• 1 finger → base + 1 × value
• 2 fingers → base + 2 × value

Helps differentiate single-finger vs multi-finger interactions.

DEFAULT_TAP_MOVE_THRESHOLD: Defines how much finger movement (in mm) is still considered a tap.

• Higher value → ignores small fast movements (reduces accidental clicks)
• Lower value → more sensitive, easier to trigger drag