# Enable audio on GPIO for Pi400 dtoverlay=audremap,pins_18_19 dtparam=audio=on # disable i2c, pin use by h-sync & v-sync dtparam=i2c_arm=off #information https://www.raspberrypi.org/documentation/hardware/raspberrypi/dpi/README.md gpio=2-9,12-17,20-25=a2 dpi_output_format=0x6 enable_dpi_lcd=1 display_default_lcd=1 dpi_group=2 #dpi_mode=16 #---------------- dpi_mode line --------------------- #---> 640x480 60hz dpi_mode=4 #---> 800x600 60hz dpi_mode=9 #---> 1024x768 60hz dpi_mode=16 #---> 1280x768 60hz dpi_mode=23 #---> 1280x800 60hz dpi_mode=28 #---> 1280x960 60hz dpi_mode=32 #---> 1280x1024 60hz dpi_mode=35 #---> 1360x768 60hz dpi_mode=39 #---> 1366x768 60hz dpi_mode=81 #---> 1400x1050 60hz dpi_mode=42 #---> 1440x900 60hz dpi_mode=47 #---> 1600x1200 60hz dpi_mode=51 #---> 1680x1050 60hz dpi_mode=58 #---> 1920x1080 60hz dpi_mode=82 #---> 1920x1200 60hz dpi_mode=69 #---> 1920x1440 60hz dpi_mode=73 #--------------- dpi_mode line SCART ------------------ dpi_mode=87 #244p@60 #hdmi_timings=320 1 4 30 46 240 1 4 5 14 0 0 0 60 0 6400000 1 #288p@50 #hdmi_timings=384 1 16 32 40 288 1 3 2 19 0 0 0 50 0 7363200 1 #576i@50 hdmi_timings=768 1 24 72 88 576 1 6 5 38 0 0 0 50 1 14875000 1 #480i@60 #hdmi_timings=640 1 24 64 104 480 1 3 6 34 0 0 0 60 1 13054080 1 #480p@60 #hdmi_timings=640 1 24 96 48 480 1 11 2 32 0 0 0 60 0 25452000 1