1. Ctrl + Alt + F1

2. # sudo board-config.sh

3. Choose change_screen,

4.  Select the current size that matches the current display resolution and refresh rate display, such as 1920 x 1080-60 ( the resolution is 1920 x 1080, refresh rate display is 60 HZ).

5.  Take care of the notice

6. Press  y , Enter

7. <Done> ( use Tab key to finish it)

8.Ctrl + Alt + F7  back to the graphic interface

9. Reboot pcDuino and you will see the right resolution which just set well .

Note: Use the Tab key to switch the cursor and press enter to finish it