Difference between revisions of "Adjust Resolution for Raspberry Pi"

From Wiki
Jump to: navigation, search
(→‎Step 1: Open config.txt)
 
(8 intermediate revisions by the same user not shown)
Line 1: Line 1:
−
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.<br>
−
Step 1: Open config.txt<br>
+
'''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<br>
 
  sudo leafpad /boot/config.txt
 
  sudo leafpad /boot/config.txt
−
Step 2: Modify the config.txt file<br>
+
'''Step 2: Modify the config.txt file'''<br>
 
Now the file config.txt is opened.<br>
 
Now the file config.txt is opened.<br>
−
1)Define a custom CVT mode add the following lines below #hdmi_force_hotplug=1. hdmi_cvt=1920 1080 60 3 0 0 0
+
1)Define a custom CVT mode add the following lines below #hdmi_force_hotplug=1.<br>
−
hdmi_cvt=<width> <height> <framerate> <aspect> <margins> <interlace>
+
        hdmi_cvt=1920 1080 60 3 0 0 0<br>
 +
'''hdmi_cvt=<width> <height> <framerate> <aspect> <margins> <interlace>'''<br>
 +
{| class="wikitable"
 +
|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
 +
|}
 +
<br>
 +
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.<br>
 +
hdmi_group=*<br> hdmi_mode=*<br> hdmi_drive=*<br>
 +
3)Modify the value, like this:<br>
 +
hdmi_group=2<br> hdmi_mode=87<br>
 +
....<br>
 +
hdmi_drive=2<br>
 +
'''hdmi_group=2''' means DMT (Display Monitor Timings; the standard typically used by monitors)<br>
 +
'''hdmi_mode=87''' indicates the resolution mode we set before.<br>
 +
'''hdmi_drive=2''' selects the Normal HDMI mode.<br>
  
−
Value Default Default
+
For more details about configuring config.txt, refer to Raspberry Pi official website: https://www.raspberrypi.org/documentation/configuration/config-txt.md
−
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.
+
After the modification is done, save, exit then reboot your Raspberry Pi and enjoy.<br>
−
hdmi_group=* hdmi_mode=* hdmi_drive=*
+
http://wiki.sunfounder.cc/images/b/b5/Modify_resolution.pdf
−
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.
+

Latest revision as of 10:56, 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.
http://wiki.sunfounder.cc/images/b/b5/Modify_resolution.pdf

Retrieved from "http://wiki.sunfounder.cc/index.php?title=Adjust_Resolution_for_Raspberry_Pi&oldid=5397"