Mutter Scroll Fix

A lightweight LD_PRELOAD hook to set per-application touchpad scroll speed in GNOME/Mutter.

Features

• Adaptive Speed: Custom scroll multiplier based on the focused window WM_CLASS.
• Simple: Single C file, you can read and understand in under 2 minutes.

Build

gcc -O3 -fPIC -shared -D_GNU_SOURCE libmutterhook.c -o libmutterhook.so -ldl

Usage

Run GNOME Shell with the hook:

export LD_PRELOAD=/path/to/libmutterhook.so

*Note: To make it permanent, add it to /etc/ld.so.preload.

Requirements

• libmutter (tested on GNOME 49)