Mouse wheel scroll jump fix

mousewfix.sh

#!/bin/bash

# Mouse wheel scroll jump fix
#
# scenario: scrolling down or up on page using mouse wheel but sometime
#           you see small jumps in reverse direction. (you can debug with 'xev' command)
#
# source: https://askubuntu.com/a/1546417/999831
#
# requirements:
# - sudo apt install xinput

devname="YICHIP Wireless Device Mouse"

# Function to get device IDs
getdevids() {
    xinput list | grep -i "$1" | grep -oP 'id=\K\d+' | tr '\n' ' ' | sed 's/ $//'
}

# Function to set property
setprop() {
    local devid="$1"
    local k="$2"
    local v="$3"
    echo "Set prop: (ID:$devid) $k=$v"
    xinput set-prop "$devid" "$k" $v 2>/dev/null
}

# Get device IDs
mouse_ids=$(getdevids "$devname")

if [ -z "$mouse_ids" ]; then
    echo "Error: Device '$devname' not found!"
    exit 1
fi

# Loop through each device ID
for devid in $mouse_ids; do
    # Disable natural scrolling (traditional scroll direction)
    setprop "$devid" "libinput Natural Scrolling Enabled" 0

    # Enable high-resolution smooth scrolling
    setprop "$devid" "libinput High Resolution Wheel Scroll Enabled" 1

    # Disable horizontal scrolling
    setprop "$devid" "libinput Horizontal Scroll Enabled" 0

    # Slow down cursor sensitivity (55% speed)
    setprop "$devid" "Coordinate Transformation Matrix" \
        "0.550000, 0.000000, 0.000000, 0.000000, 0.550000, 0.000000, 0.000000, 0.000000, 1.000000"

    echo "Applied settings to '$devname' (ID: $devid)"
done