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config-pre-DPI.txt
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config-pre-DPI.txt
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# For more options and information see
# http://rpf.io/configtxt
# Some settings may impact device functionality. See link above for details
# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1
# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan
#disable_overscan=1
# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
#overscan_left=16
#overscan_right=16
#overscan_top=16
#overscan_bottom=16
# uncomment to force a console size. By default it will be display's size minus
# overscan.
#framebuffer_width=1280
#framebuffer_height=720
# uncomment if hdmi display is not detected and composite is being output
##hdmi_force_hotplug=1
# uncomment to force a specific HDMI mode (this will force VGA)
#hdmi_group=1
#hdmi_mode=1
# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
#hdmi_drive=2
# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
#config_hdmi_boost=4
# uncomment for composite PAL
#sdtv_mode=2
#uncomment to overclock the arm. 700 MHz is the default.
#arm_freq=800
# Uncomment some or all of these to enable the optional hardware interfaces
#dtparam=i2c_arm=on
#dtparam=i2s=on
#dtparam=spi=on
# Uncomment this to enable infrared communication.
#dtoverlay=gpio-ir,gpio_pin=17
#dtoverlay=gpio-ir-tx,gpio_pin=18
# Additional overlays and parameters are documented /boot/overlays/README
# Enable audio (loads snd_bcm2835)
dtparam=audio=on
[pi4]
# Enable DRM VC4 V3D driver on top of the dispmanx display stack
#dtoverlay=vc4-fkms-v3d
max_framebuffers=2
[all]
##dtoverlay=vc4-fkms-v3d
# Enable SPI in device tree
dtparam=spi=on
# Enable I2C in device tree
dtparam=i2c_arm=on,i2c_arm_baudrate=400000
# Setting kernel scaling framebuffer method
scaling_kernel=8
# Enable audio
dtparam=audio=on
# Allow more current through USB
max_usb_current=1
# Setup UART clock to allow DMX output
init_uart_clock=16000000
# Swap Pi 3 and Zero W UARTs with BT
dtoverlay=pi3-miniuart-bt
dtoverlay=dwc2
# GPU memory set to 128 to deal with error in omxplayer with hi-def videos
[pi4]
gpu_mem=128
[pi3]
gpu_mem=128
[pi0]
gpu_mem=64
[pi1]
gpu_mem=64
[pi2]
gpu_mem=64
[all]
#use "cat /proc/cpuinfo" to get serial#
#[serial#]
##################################
# DPI entries added 01/23/22 21:58:58
##################################
#see raspberrypi.com/documentation/computers/config_txt.html
#and https://elinux.org/RPiconfig
#debug commands:
#vcgencmd get_config
#fbset -fb /dev/fb#
#gpio readall
#TODO: [gpio4=1] #filter on GPIO (jumpers)
# DPI setup:
#obsolete dtoverlay=dpi24_masked
gpio=4-27=a2
# DPI display: invert clock (data valid on falling edge), data valid, RGB byte order, 24-bit 888
dpi_output_format=0x17
dpi_group=2
dpi_mode=87
#20 fps (50 msec):
dpi_timings=392 0 0 1 0 294 0 4 3 4 0 0 0 20 0 2400000 1
#40 fps (25 msec):
##########dpi_timings=278 0 0 1 0 209 0 2 2 2 0 0 0 40 0 2400000 1
#enable display attached to DPI:
enable_dpi_lcd=1
#ensure DPI is not default display:
#display_default_lcd=0
display_default_lcd=1
# Force display if no monitor detected:
hdmi_force_hotplug=1
# Turn off border, overscan:
disable_overscan=1
overscan_left=0
overscan_right=0
overscan_top=0
overscan_bottom=0
# Set framebuffer size:
framebuffer_depth=32
# Other settings (uncomment if needed):
#gpu_mem=128
# avoid conflicts:
#dtparam=i2c_arm=off
#dtparam=spi=off
#dtparam=i2s=on
#dtparam=audio=off
#disable_audio_dither=1
[0xdead]
#############################################################3
#OBSOLETE keep screen blank during boot:
#disable_auto_detect=1
#disable_splash=1 #no affect
#fb_pri ig_lcd en_lcd def_lcd result
# - - - - couldn't open fb1
# 2 - - - ran @60 Hz, no output
# - - 1 - DPI on fb0, 1 junk px @boot, fbws works 20 fps
# - - 0 - DPI on fb0, no1 junk px, fbws no output 60 fps
# - - 1 x DPI on fb0, 1 junk px, fbws works 20 fps
# - - - x DPI on fb0, no junk px, fbws no output 60 fps
# Enable second fb device + run HDMI on first device:
###################max_framebuffers=2
#framebuffer_priority=2
#framebuffer_priority=0
#send ALSA audio to headphone jack:
#hdmi_ignore_edid_audio=1
#allow override of monitor-selected
#https://forums.raspberrypi.com/viewtopic.php?t=5851
#hdmi_ignore_edid=0xa5000080
#force hdmi (audio) not dvi:
######################hdmi_drive=2
#put file edid.dat file in /boot and used custom edid:
#see start.elf from github
#hdmi_edid_file=1
#skip I2C detection of LCD (LCD won't be used?):
#??ignore_lcd=1
#default lcd frame rate:
#lcd_framerate=60
#disable_touchscreen=1
#set FB decoration:
#framebuffer_ignore_alpha=1
#framebuffer_width=
#framebuffer_height=
[all]
#eof