I set display resolution to 800x480 by dietpi-launcher, but after reboot, system resolutions back to 1920x1080. But in the config file settings was still 800x480. So, config is not applying on rock pi 4b apparently.
I set display resolution to 800x480 by dietpi-launcher, but after reboot, system resolutions back to 1920x1080. But in the config file settings was still 800x480. So, config is not applying on rock pi 4b apparently.