Watch udev events and configure shit that should be automatically configured in the first place.

gistfile1.sh

#!/bin/sh

config_input() {
        setxkbmap -option ctrl:nocaps
        dev="TPPS/2 IBM TrackPoint"
        xinput --set-prop "$dev" "Evdev Wheel Emulation" 1
        xinput --set-prop "$dev" "Evdev Wheel Emulation Button" 2
        xinput --set-int-prop "$dev" "Evdev Wheel Emulation Axes" 8 6 7 4 5
}

config_display() {
        xrandr --output LVDS1 --auto --output HDMI1 --auto --output VGA1 --auto
        xset -dpms s off
}

config_input
config_display

unbuffer udevadm monitor \
| unbuffer -p sed -e '/^UDEV.*(\(machinecheck.*\|hidraw\|drm\))$/!d' \
        -e 's/^.*(\(\w*\))$/\1/' \
| while read -r line
do
        udevadm settle
        case "$line" in
        "machinecheck"*)
                config_input
                config_display
                ;;
        "hidraw"*)
                config_input
                ;;
        "drm"*)
                config_display
                ;;
        esac
done