How to set HDMI resolution

Modified by configuration file

Switch to root user

• Switch to the root user, ordinary users do not have sufficient permission.

khadas@Khadas:~$ su
Password:
root@Khadas:/home/khadas#

• open configuration file

root@Khadas:/home/khadas# vim /boot/env.txt

modified configuration file

• Set automatic recognition as no

hdmi_autodetect=yes --> hdmi_autodetect=no

• Select a resolution in the list, example: select 1080p60hz.

hdmi=1080p60hz

Restart will take effect

Apply settings via HDMI Resolution

open application

Find HDMI Resolution in the list of system applications.Find HDMI Resolution in the list of system applications.

Then open it.

Set resolution

Choose a resolution you need, then choose save,

The system will automatically log out and the resolution setting will take effect