Difference between revisions of "Adjust Resolution for Raspberry Pi"

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(Step 2: Modify the config.txt file)
(Step 1: Open config.txt)
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If you are using Raspberry Pi with the screen, you may encounter incomplete display, with black space around. that would be wrong resolution.
 
If you are using Raspberry Pi with the screen, you may encounter incomplete display, with black space around. that would be wrong resolution.
==Step 1: Open config.txt==
+
Step 1: Open config.txt<br>
 
Connect a mouse and a keyboard to your Raspberry Pi. Click open the Terminal, and type in the command to open config.txt
 
Connect a mouse and a keyboard to your Raspberry Pi. Click open the Terminal, and type in the command to open config.txt
 
  sudo leafpad /boot/config.txt
 
  sudo leafpad /boot/config.txt

Revision as of 10:19, 20 February 2019

If you are using Raspberry Pi with the screen, you may encounter incomplete display, with black space around. that would be wrong resolution. Step 1: Open config.txt
Connect a mouse and a keyboard to your Raspberry Pi. Click open the Terminal, and type in the command to open config.txt

	sudo leafpad /boot/config.txt	

Step 2: Modify the config.txt file
Now the file config.txt is opened.
1)Define a custom CVT mode add the following lines below #hdmi_force_hotplug=1. hdmi_cvt=1920 1080 60 3 0 0 0 hdmi_cvt=<width> <height> <framerate> <aspect> <margins> <interlace>

Value Default Default width (required) width in pixels height (required) height in pixels framerate (required) framerate in Hz aspect 3 aspect ratio 1=4:3, 2=14:9, 3=16:9, 4=5:4, 5=16:10, 6=15:9 margins 0 0=margins disabled, 1=margins enabled interlace 0 0=progressive, 1=interlaced rb 0 0=normal, 1=reduced blanking

2)Find the following lines (If there is a "#" mark at the beginning of any of the three lines, which means they are comments, delete the mark. The asterisk "*" represents the value. hdmi_group=* hdmi_mode=* hdmi_drive=* 3)Modify the value, like this: hdmi_group=2 hdmi_mode=87 .... hdmi_drive=2 hdmi_group=2 means DMT (Display Monitor Timings; the standard typically used by monitors) hdmi_mode=87 indicates the resolution mode we set before. hdmi_drive=2 selects the Normal HDMI mode.

For more details about configuring config.txt, refer to Raspberry Pi official website: https://www.raspberrypi.org/documentation/configuration/config-txt.md.

After the modification is done, save, exit then reboot your Raspberry Pi and enjoy.