@Zing grazie mille gli do un'occhiata e ti faccio sapere

buona sera. qualcuno puo aiutarmi a configurare la scheda vga666. di seguito copio il mio file config.txt grazie a tutti in anticipo.

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

Using /etc/modules is deprecated and no longer supported on 4.4 kernel

So manually enable audio

dtparam=audio=on

config_hdmi_boost=0

force hdmi while the tv can take time before sending the signal on the hdmi output

hdmi_force_hotplug=1

uncomment for composite PAL

#sdtv_mode=2

uncomment for lirc-rpi

#dtoverlay=lirc-rpi

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

uncomment if you don't want the rainbow at startup

disable_splash=1

default CEC name

cec_osd_name=recalbox

Overclock

gpu_mem_256=128
gpu_mem_512=256
gpu_mem_1024=384

avoid_safe_mode=1

kernel=zImage

Raise the first security limit up to 70° instead of 60°

temp_soft_limit=70