Difference between revisions of "Adjust Resolution for Raspberry Pi"
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'''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.<br> hdmi_cvt=1920 1080 60 3 0 0 0<br> | + | 1)Define a custom CVT mode add the following lines below #hdmi_force_hotplug=1.<br> |
| + | hdmi_cvt=1920 1080 60 3 0 0 0<br> | ||
'''hdmi_cvt=<width> <height> <framerate> <aspect> <margins> <interlace>'''<br> | '''hdmi_cvt=<width> <height> <framerate> <aspect> <margins> <interlace>'''<br> | ||
| − | + | {| class="wikitable" | |
| − | Value Default Default | + | |Value |
| − | width (required) width in pixels | + | |Default |
| − | height (required) height in pixels | + | |Default |
| − | 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 | + | |width |
| − | margins 0 0=margins disabled, 1=margins enabled | + | |(required) |
| − | interlace 0 0=progressive, 1=interlaced | + | |width in pixels |
| − | rb 0 0=normal, 1=reduced blanking | + | |- |
| + | |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> | <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> | 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> | ||
| Line 27: | Line 52: | ||
'''hdmi_drive=2''' selects the Normal HDMI mode.<br> | '''hdmi_drive=2''' selects the Normal HDMI mode.<br> | ||
| − | For more details about configuring config.txt, refer to Raspberry Pi official website: https://www.raspberrypi.org/documentation/configuration/config-txt.md | + | 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. | + | After the modification is done, save, exit then reboot your Raspberry Pi and enjoy.<br> |
| + | http://wiki.sunfounder.cc/images/b/b5/Modify_resolution.pdf | ||
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
