Companion cron job for https://gist.github.com/auroracramer/64fa76aa82da717a520a28ec25304a66 to re-enable keyboard when screen is locked so you don't have to restart your computer

unstuck-keyboard

#!/usr/bin/env bash                                                                                                                                                                                       
# Add to crontab via:                                                                                                                                                                                     
# (crontab -u $USER -l; echo "*/1 * * * * $HOME/.local/bin/unstuck-keyboard" ) | crontab -u $USER -                                                                                                       
                                                                                                                                                                                                          
# Set up env vars so that gnome-screensaver-command works with cron. If these                                                                                                                             
# are not set, the screen device will not be able to be detected                                                                                                                                          
# Courtesy of: https://www.programmersought.com/article/27592171963/                                                                                                                                      
                                                                                                                                                                                                          
user=$(whoami)                                                                                                                                                                                            
env_reference_process=$( (pgrep -u "$user" xfce4-session || pgrep -u "$user" ciannamon-session || pgrep -u "$user" gnome-session || pgrep -u "$user" gnome-shell || pgrep -u "$user" kdeinit ) | head -1 )
                                                                                                                                                                                                          
export DBUS_SESSION_BUS_ADDRESS=$(cat /proc/"$env_reference_process"/environ | grep --null-data ^DBUS_SESSION_BUS_ADDRESS= | sed 's/DBUS_SESSION_BUS_ADDRESS=//')                                         
export DISPLAY=$(cat /proc/"$env_reference_process"/environ | grep --null-data ^DISPLAY= | sed 's/DISPLAY=//')                                                                                            
                                                                                                                                                                                                          
echo $DBUS_SESSION_BUS_ADDRESS                                                                                                                                                                            
echo $DISPLAY                                                                                                                                                                                             
                                                                                                                                                                                                          
# If the screensaver is on, exit since we're not at the computer presumably                                                                                                                               
if [[ -z $(grep "inactive" <(gnome-screensaver-command -q)) ]]; then                                                                                                                                      
    KEYBOARD_INFO=$(xinput list | sed -e 's/  */ /g' | grep "AT Translated Set 2 keyboard")                                                                                                               
    EXTRAKEY_INFO=$(xinput list | sed -e 's/  */ /g' | grep "ThinkPad Extra Buttons")                                                                                                                     
    KEYBOARD_ID=$(echo $KEYBOARD_INFO | grep -o -P 'id=\K\d*')                                                                                                                                            
    EXTRAKEY_ID=$(echo $EXTRAKEY_INFO | grep -o -P 'id=\K\d*')                                                                                                                                            
    MASTER_ID=$(xinput list | sed -e 's/  */ /g' | grep -o -P 'slave keyboard \(\K\d*' | head -n 1)                                                                                                       
                                                                                                                                                                                                          
    if [ ! -z "$(echo $KEYBOARD_INFO | grep -o -P 'floating slave')" ]; then                                                                                                                              
        xinput reattach $KEYBOARD_ID $MASTER_ID                                                                                                                                                           
        xinput reattach $EXTRAKEY_ID $MASTER_ID                                                                                                                                                           
        echo "Re-enabled keyboard"                                                                                                                                                                        
    fi                                                                                                                                                                                                    
fi