It makes sense to turn off the screen of your laptop if you’re running your server on it.
Following steps work on Ubuntu 22.04
https://dannyda.com/2019/06/19/turn-off-display-automatically-on-ubuntu-18-04-server-with-text-boot/
Create a file:
sudo nano /etc/systemd/system/enable-console-blanking.service
And put this into the file:
[Unit]
Description=Enable virtual console blanking
[Service]
Type=oneshot
Environment=TERM=linux
StandardOutput=tty
TTYPath=/dev/console
ExecStart=/usr/bin/setterm -blank 1
[Install]
WantedBy=multi-user.target
Then change the file rights and enable the service:
sudo chmod 664 /etc/systemd/system/enable-console-blanking.service
sudo systemctl enable enable-console-blanking.service
Open /etc/default/grub
Add consoleblank=0
to GRUB_CMDLINE_LINUX_DEFAULT=
as parameter.
do sudo update-grub
then reboot
And reboot the server.