drm-kmod-20220907_2 not supported for this configuration / NVIDIA : Failed to initialize the NVIDIA kernel module

Hello to everyone.

I need to conduct some tests on top of the FreeBSD 13.1.
So,I've installed it on one of my disks. I've installed xfce4 and KDE,Xorg
and from the ports (after having upgraded them),I've installed the
nvidia-driver version. 535.146.02 ; I didn't have any problem.

The problem arises when I tried to install the package drm-kmod from ports.

Unfortunately I'm not able to compile it. This is what happened :

root@marietto:/usr/ports/graphics/drm-kmod # make
====> drm-kmod-20220907_2 not supported for this configuration.

ok. At this point I tried to install it from the packages :

root@marietto:/usr/ports/graphics/drm-kmod # make clean
====> cleaning for drm-kmod-20220907_2

so :

root@marietto:/usr/ports/graphics/drm-kmod # pkg install drm-kmod

New packages to be INSTALLED :
drm-kmod: 20220907_2
OK

now,I have performed additional configuration to :

nano /home/marietto/.xinitrc :

exec ck-launch-session dbus-launch --exit-with-session startxfce4

nano /etc/rc.conf :

kdm5_enable="YES"
dbus_enable="YES"
hald_enable="YES"
kld_list="nvidia nvidia-modeset"
rpcbind_enable="YES"
dtcms_enable="YES"
inetd_enable="YES"

nano /boot/loader.conf

vmm_load="YES"
nmdm_load="YES"
tmpfs_load="YES"
cryptodev_load="YES"
zfs_load="YES"
kern.racct.enable="1"
kern.vty=vt
kern.cam.scsi_delay="10000"

nano /etc/X11/xorg.conf

Section "Device"
               Identifier   "Card0"
               Driver         "nvidia"
               BusID          "PCI:1:0:0"
EndSection


root@marietto:/home/marietto # lspci

01:00.0 NVIDIA GP106
01:00.1 NVIDIA GP106 High Definition Audio Controller
02:00.0 NVIDIA TU102
02:00.1 NVIDIA TU102 High Definition Audio Controller
02:00.2 NVIDIA TU102 USB Controller
02:00.3 NVIDIA TU102 Serial BUS Controller

Now,I want to startx to start xfce4 :

marietto@marietto: $ startx

Fatal server error : no screens found (EE)
Check the log file at "/var/log/Xorg.0.log"

nano /var/log/Xorg.0.log :

NVIDIA dlloader X driver 535.146.02
NVIDIA Unified Driver for all Supported NVIDIA gpus
NVIDIA : Failed to initialize the NVIDIA kernel module

How to fix it ?

-- 
Mario.