User Guide

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3. Type the following command and then press Enter:
edidparser edid
4. Find the video mode that you want to use, and
make note of the mode number and whether it says
“DMT mode” or “CEA mode”.
5. Type the following command and press Enter:
sudo nano /boot/config.txt
6. Press the Down Arrow key until you find the lines
that begin with
#hdmi_group=
#hdmi_mode=
7. Remove the # from the start of both of those lines.
8. If the video mode is DMT, change the hdmi_group
to 2:
hdmi_group=2
9. If the video mode is CEA, change the hdmi_group
to 1:
hdmi_group=1
10. Type the mode number after hdmi_mode=, for
example:
hdmi_mode=16
11. Find the line that reads disable_overscan=0 and
change it to:
disable_overscan=1
12. Press Ctrl + X.
13. Press Y, and then press Enter.
14. Restart the Raspberry Pi.
Editing Text Files in the Desktop Environment
Raspbian has a built-in text editor, called “Leafpad”. You can use
it to take notes, write shell scripts and Python programs, and
modify text and configuration files on the Pi.
You can find Leafpad on many Linux distributions, and it usually
works exactly the same on all of them.