The best solution I've found is to uncomment the "Timed login" options on the custom.gdm as shown here https://askubuntu.com/questions/1136457
# Enabling timed login TimedLoginEnable = true TimedLogin = username TimedLoginDelay = 10
The best solution I've found is to uncomment the "Timed login" options on the custom.gdm as shown here https:/ /askubuntu. com/questions/ 1136457
# Enabling timed login
TimedLoginEnable = true
TimedLogin = username
TimedLoginDelay = 10