Problème d'affichage/Résolution en sortie Composite.
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**Salut à tous.
Depuis 2,3 jours j'essaye de configurer ma Recalbox, tout allait bien jusqu ce petit problème très irritant : L'image est déformé et/ ou dépasse de l'écran.Ma Recalbox tourne sur un Raspberri Pi 4 B+, connecter via un cables composite RCA sur un vieille ecran LCD à Tube Sony.
TV SONY KLV-20SR3S
Aspect (ratio) :4:3
Diagonale :51 cm (20")
Définition :640 x 480J'ai tout paramétré, suivi les tutos pour brancher en composite 4/3, regardé les forums, mais rien à faire.
J'ai essayé d'activer l'overscan : aucun effets, pas de changements.
J'ai l'impression qu'il y a un conflit ou un bug dans la résolution ou le ratio.. Je ne comprend pas.
config.txt :
############################################################################ # Boot loader configuration # # Warning: do not edit this file as it will be overwritten when upgrading! # ############################################################################ # Using /etc/modules is deprecated and no longer supported on 4.4 kernel # So manually enable audio dtparam=audio=on # if you plug your tv at the same time as your rpi and that the rpi switches from the hdmi or # give a low resolution because tv had no enough time to initialize it boot_delay=3 # disable boot rainbow disable_splash=1 # default CEC name cec_osd_name=recalbox avoid_safe_mode=1 kernel=boot/linux initramfs boot/initrd.gz # force hdmi while the tv can take time before sending the signal on the hdmi output #hdmi_force_hotplug=1 # total amount of GPU memory gpu_mem=128 # your settings can be set in /boot/recalbox-user-config.txt include recalbox-user-config.txt # overclocking settings are automatically managed in this file # do not remove this line, nor edit the file include recalbox-oc-config.txt # Raise the first security limit up to 70° instead of 60° for pi3 and pi4 [pi3] temp_soft_limit=70 dtoverlay=vc4-kms-v3d include crt/recalbox-crt-config.txt [pi4] arm_64bit=1 temp_soft_limit=70 dtoverlay=vc4-kms-v3d-pi4,composite=1 include crt/recalbox-crt-config.txt # disable 4k resolution hdmi_pixel_freq_limit:0=200000000 hdmi_pixel_freq_limit:1=200000000 [board-type=0x12] dtoverlay=vc4-kms-v3d include crt/recalbox-crt-config.txt # custom config [all]
user config :
# Change to your needs # uncomment if you get no picture on HDMI for a default "safe" mode #hdmi_safe=1 disable_overscan=1 # uncomment to force a specific HDMI mode (this will force VGA) #hdmi_group=1 #hdmi_mode=1 # Sound output. Set to 0 or comment for autodetect, 1 for DVI, 2 to force HDMI. #hdmi_drive=2 config_hdmi_boost=0 # uncomment for composite PAL #sdtv_mode=2 # uncomment for lirc-rpi #dtoverlay=lirc-rpi # uncomment if you have chinese TV display and display is garbled or slow #hdmi_ignore_edid=0xa5000080 [pi4] dtoverlay=vc4-kms-v3d-pi4,composite=1 [all] dtoverlay=gpio-fan,gpiopin=14,temp=70000 sdtv_mode=2 hdmi_ignore_hotplug=1 hdmi_force_hotplug=0 audio_pwm_mode=2 enable_tvout=1 disable_fw_kms_setup=1 sdtv_aspect=1 overscan_scale=0 ```**
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