Instructions

Below the Point [pi4], you have to comment out the
following command: dtoverlay=vc4-fkms-v3d.
This should look like the following:
If you do not want to use our prepared Image or inte-
grate the display into an existing system, you can also
install the display manually, of course.
First, connect the both devices with the provided HDMI
cable. Connect both the display and the Raspberry Pi
with the matching power supplies.
[pi4]
# Enable DRM VC4 V3D driver on top of the
dispmanx display stack
#
#dtoverlay=vc4-fkms-v3d
max_framebuffers=2
<- This setting has to
be commented out
with #
!
Caution! When starting the display for the first
time, the Raspberry Pi has to be started AFTER the
Display! Otherwise, the transmission of picture
data will not function.