Configuration Raspi OS

Mise à jour : Raspi OS 10.6

Sous Raspi OS, le chargement des pilotes nécessaires à certains matériels (video, périphériques i2S, i2C,  ....) doit nécessairement s'effectuer au démarrage du système. Les informations nécessaires pour déterminer les pilotes à charger sont contenues dans un fichier de configuration à paramétrer par l'utilisateur.

Ce document présente

Sommaire

1 - Configuration

$ cat /boot/config.txt

# 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
# 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

2 - Configuration sorties hdmi

Documentation : https://www.raspberrypi.org/documentation/configuration/config-txt/video.md

2.1 - Branchement d'un écran tactile hdmi 7 pouces

max_usb_current=1
hdmi_force_hotplug=1
config_hdmi_boost=7
hdmi_group=2
hdmi_mode=87
hdmi_drive=1 display_rotate=0 hdmi_cvt 1024 600 60 6 0 0 0
$ vcgencmd get_config framebuffer_depth
framebuffer_depth=0
$ fbset -i |head -3

mode "1024x600"
geometry 1024 600 1024 600 16
[hdmi:0]

# Set hdmi signal boost to the default value
config_hdmi_boost=5

# Set monitor mode to DMT

hdmi_group=2

# Set monitor resolution to 1920x1080 / 60 Hz /
ratio 16:9
hdmi_mode=87
hdmi_cvt 1024 600 60 6 0 0 0

# Don't set audio on hdmi
hdmi_drive=1 display_hdmi_rotate=0

2.2 - Branchement d'un moniteur PC standard

[hdmi:1]

# Set monitor mode to DMT hdmi_group=2

# Set monitor resolution to 1920x1080 / 60 Hz /
ratio 16:9
hdmi_mode=87
hdmi_cvt=1920 1080 60
3

3 - Configuration carte son Hifiberry

dtparam=i2s=on
dtoverlay=hifiberry-dacplus

# dtparam=audio=on

4 - Récapitulatif fichier de configuration

$ cat /boot/config.txt

[hdmi:0]
# Ecran tactile 7 pouces sans audio
hdmi_group=2
hdmi_mode=87
hdmi_drive=1
hdmi_cvt 1024 600 60 6 0 0 0

[hdmi:1]
# Ecran avec audio
hdmi_group=2
hdmi_mode=87
hdmi_cvt=1920 1080 60
3

[all]
# Carte audio i2s hifiberry
dtparam=i2s=on
dtoverlay=hifiberry-dacplus

[pi4]
# Enable DRM VC4 V3D driver on top of the dispmanx display stack
dtoverlay=vc4-fkms-v3d
max_framebuffers=2

[all]
# Optionnel : pour empêcher le lancement du mode graphique
start_x=0

Annexe - Configuration par défaut

$ cat /boot/config.txt
# 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