Recalbox won't start on Raspberry Pi 4B

[guanzo]

So I flashed the Recalbox 7 image with Etcher to 2 different SD-Cards (Kingston and Intenso 32 GB HC Class 10). With both cards, I only get a grey screen after the Raspberry Pi bootup Screen. I waited about an hour for something to happen. The Pi is blinking green for a few minutes and then stops.

Any solution to this?

[OyyoDams]

@guanzo please try this:

1. Edit config.txtfile
2. Uncomment #hdmi_ignore_hotplug=1 => hdmi_ignore_hotplug=1
3. Uncomment #sdtv_mode=2 => sdtv_mode=2
4. Comment hdmi_enable_4kp60=1 => #hdmi_enable_4kp60=1

Does it boot ?

[guanzo]

Thanks for your reply! So I'm really new to this stuff and I don't wanna do something wrong. This is my config.txt:

#############################################################
# Boot loader configuration                                 #
# This file can be modified 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
 
# force hdmi while the tv can take time before sending the signal on the hdmi output
#hdmi_force_hotplug=1 <--- comment here
hdmi_ignore_hotplug=1  #add line here
 
# uncomment for composite PAL
sdtv_mode=2 # <-- uncomment here
 
# uncomment for lirc-rpi
#dtoverlay=lirc-rpi
 
# enable fake-kms overlay
# possible alternatives are
# * vc4-kms-v3d
# * vc4-kms-v3d-pi4
dtoverlay=vc4-fkms-v3d
 
# allow only one framebuffer (the one marked 0, closest to the power input)
max_framebuffers=1
 
# allow 4k 60hz
# hdmi_enable_4kp60=1 # <--- here commented
 
# total amount of GPU memory
gpu_mem=448
 
###########################
# do not remove this line !
include recalbox-config.txt
 
# custom config                                                                                                                                                                                              
[all]

Could you point me where I have to make the edits? Thanks in advance!

[ian57]

@guanzo I modified your config.txt ^