unknown display ubuntu
# 1. Update everything
sudo apt update && sudo apt upgrade && sudo apt autoremove
sudo ubuntu-drivers autoinstall
# 2. Remove the monitors.xml file
rm -rf ~/.config/monitors.xml
# 3. Edit grub config and update grub
cat /etc/default/grub
# Find the `GRUB_CMDLINE_LINUX_DEFAULT` key and set it to nothing
# Like this: GRUB_CMDLINE_LINUX_DEFAULT=""
sudo update-grub
# 4. Reboot
sudo reboot now
# If this does indeed help you please leave a like for future folks!
# Grepper ftw