buster login: broken atomic modeset userspace detected, disabling atomic

Hello to everyone.

I've installed a qemu / kvm debian buster / armhf VM on top of my jetson nano / arm64. This is the procedure that I have used :

stage 1 : I've created this script for the installation :

installer-buster.sh :

Code:qemu-system-aarch64 -M virt -m 2048 -smp 2 -cpu host,aarch64=off -enable-kvm \

-kernel /home/zi/Desktop/Work/I9/Arm32/debian10-buster/installer/vmlinuz \

-initrd /home/zi/Desktop/Work/I9/Arm32/debian10-buster/installer/initrd.gz \

-drive if=none,file=hda-buster.qcow2,format=qcow2,id=hd \

-device virtio-blk-device,drive=hd \

-netdev user,id=mynet \

-device virtio-net-device,netdev=mynet \

-nographic -no-reboot
stage 2 : I've created this script for the booting :

booting-buster.sh

Code:qemu-system-aarch64 -M virt -m 2048 -smp 2 -cpu host,aarch64=off -enable-kvm \

-kernel /home/zi/Desktop/Work/I9/Arm32/debian10-buster/vmlinuz-4.19.0-14-armmp-lpae \

-initrd /home/zi/Desktop/Work/I9/Arm32/debian10-buster/initrd.img-4.19.0-14-armmp-lpae \

-append 'root=/dev/vda2' \

-device usb-ehci -device usb-kbd -device usb-mouse -usb -serial stdio \

-device virtio-gpu-pci,virgl=on,xres=1920,yres=1080 -display sdl,gl=on \

-drive if=none,file=/home/zi/Desktop/Work/I9/Arm32/hda-buster.qcow2,format=qcow2,id=hd \

-device virtio-blk-device,drive=hd -netdev user,id=mynet \

-device virtio-net-device,netdev=mynet \

-bios edk2-arm-code.fd \

-no-reboot
What's the problem ? Problem is that when the login screen is shown,my mouse and my keyboard don't work. Investigating I think that I've found the reason. This is the content of :

/etc/gdm3/daemon.conf

Code:# GDM configuration storage

# See /usr/share/gdm/gdm.schemas for a list of available options.

[daemon]

# Uncomment the line below to force the login screen to use Xorg

#WaylandEnable=false

# Enabling automatic login

# AutomaticLoginEnable = true

# AutomaticLogin = user1

# Enabling timed login

# TimedLoginEnable = true

# TimedLogin = user1

# TimedLoginDelay = 10
As you can see it tells that Wayland should be enabled. I suspect that this is the reason why my mouse and keyboard don't work with a qemu and kvm Buster VM. Anyway,I've tried to do how it suggests to do,uncommenting the line below to force the login screen to use Xorg :

WaylandEnable=false

but it didn't work anyway. My mouse and keyboard still don't work. This time I can see the error message :

buster login: [ 190.296714] broken atomic modeset userspace detected, disabling atomic

so. How can I fix this bug ?