Possibility to change screen resolution?

[izy-one]

Hello avafinger thanks for you great work on this image. Is there a possibility to change the screen resolution? I need for a touch screen a resolution of 1366x768 pixel.

[avafinger]

@izy-one ,
Currently there are these screen resolution for the HDMI output:
480p,576p,720p,1080p

Looks like you want to use some RPi TFT display and RPi seems to have more res.
If this is not the case you should use 720p instead of 1080p and see if your device can upscale or downscale to 1366x768.

[izy-one]

Hey,
yes i want to use this touchscreen from an older projekt https://www.chalk-elec.com/?page_id=1283#!/15-6-HDMI-interface-LCD-with-capacitive-touchscreen/p/38127425/category=3094861
I have to try if one of the lower resolutions could work. How can i change this? Because in the OS is only one resolution selectable

[avafinger]

Here is how you can test all res.
The file responsible for all board configuration is located in the FAT partition [/media/your user]/boot/a64/a64-2GB.dtb

1 - with your SD CARD in host PC, go to the directory /a64 find the file and and make a backup, type in Shell:
cp -vf a64-2GB.dtb a64-2GB.dtb_backup

2 - Uncompress the file a64-2GB_1080p_720p_576p_480p.tar.gz (attached) in that dir

3 - Test every res, start with 720p and go on with lower res until you find the best res.
cp -vf a64-2GB.dtb_720p a64-2GB.dtb

boot with this new res, if it woks, keep this and be happy, or try again with the others res.

a64-2GB_1080p_720p_576p_480p.tar.gz