OrangePi Zero3: How to set HDMI resolution in Linux5.4 system

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Chapt 3. Instructions for use of Debian/Ubuntu Server and Xfce desktop system

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Chapter 3 contents

3.9.3. How to set HDMI resolution in Linux5.4 system

Note: This method is only applicable to systems with linux5.4 kernel.

1) There is a disp_mode variable in /boot/orangepiEnv.txt of the linux system, which can be used to set the resolution of the HDMI output. The default resolution of the linux system is 1080p60

orangepi@orangepi:~$ sudo vim /boot/orangepiEnv.txt
verbosity= 1
console=both
disp_mode=1080p60
fb0_width=1920
fb0_height= 1080

2) The values supported by the disp_mode variable are shown in the table below

Supported values for disp_mode | HDMI resolution | HDMI refresh rate

480i 720x480 60

576i 720x480 50

480p 720x480 60

576p 720x576 60

720p50 1280x720 50

720p60 1280x720 60

1080i50 1920x1080 50

1080i60 1920x1080 60

1080p24 1920x1080 24

1080p50 1920x1080 50

1080p60 1920x1080 60

Note: Linux systems currently do not support 4K resolution.

3) Change the value of the disp_mode variable to the desired output resolution, and then restart the system, HDMI will output the set resolution

4) The method of viewing the HDMI output resolution is as follows. If the displayed resolution is the same as the set resolution, it means that the setting of the development board is correct.

orangepi@orangepi:~$ sudo cat /sys/class/disp/disp/attr/sys

Img 3.82

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