I need the exact syntax when specifying between HDMI0 and HDMI1 ports within the config.txt file.
So for all HDMI related commands, do I add the ‘:0’ suffix for HDMI0 and ‘:1’ suffix for HDMI1?
So, when connecting the 5" display to HDMI1, would all the following commands have the ‘:1’ suffix added:
hdmi_pixel_freq_limit:1=400000000
hdmi_drive:1=2
hdmi_mode:1=87
disable_overscan:1=1
5 inch
hdmi_timings:1= 720 0 100 33 100 1280 0 20 2 30 0 0 0 60 0 79000000 0
max_framebuffer_width:1=1280
max_framebuffer_height:1=1280
display_rotate:1=1
framebuffer_width:1=1280
framebuffer_height:1=720
Then if connecting some other display to HDMI1 and moving the 5" to HDMI0, would all the suffixes change to ‘:0’ as in the following?
hdmi_pixel_freq_limit:0=400000000
hdmi_drive:0=2
hdmi_mode:0=87
disable_overscan:0=1
5 inch
hdmi_timings:0= 720 0 100 33 100 1280 0 20 2 30 0 0 0 60 0 79000000 0
max_framebuffer_width:0=1280
max_framebuffer_height:0=1280
display_rotate:0=1
framebuffer_width:0=1280
framebuffer_height:0=720
Also, why are the following commands required just for Seeed LCD’s:
force_trubo=1 (by the way, I assume this is a typo and should be ‘force_turbo’- but do I need this for the Raspberry Pi 4B? Why does this need to be enabled for this 5" monitor?)
gpu_freq=300 (again, why does this need to be specified just for this monitor?)
core_freq=400 (again, why does this need to be specified just for this monitor?)
hdmi_pixel_freq_limit=400000000 (again, why does this need to be specified just for this monitor?)