CAPS LOCK by default

# 1. Check what X thinks is latched

xset q | grep -iE "caps|num|scroll"

#2 Install xdotool

sudo apt install -y xdotool

# 3. Clear it (inject straight into X, bypasses the physical key)

xdotool key Caps_Lock # toggle Caps off xdotool keyup shift # if Shift is the stuck one instead

# 4. Nuclear reset of all modifiers/options

setxkbmap -option

# 5. Verify

xset q | grep -i caps # want: Caps Lock: off