Gnome-Wayland Desktop Shell Support

To enable experimental Gnome-Wayland desktop shell support:

1. Install gdm3, mutter, and their dependencies:

   sudo apt update
   sudo apt install -y gdm3 mutter adwaita-icon-theme-full
   sudo apt install -y --reinstall libdrm2 ubuntu-session

2. Repair the broken drm-nvdc soft link and rename the Ubuntu session file:

   sudo ln -sf /usr/lib/libdrm.so.2 /usr/lib/aarch64-
   linux-gnu/libdrm.so.2
   sudo mv /usr/share/wayland-sessions/ubuntu-wayland.desktop 
   /usr/share/wayland-sessions/ubuntu.desktop

3. Add the gdm daemon to the video group:

   sudo usermod -a -G video gdm

4. Configure gdm to use Wayland by setting the following flag in the [daemon] section of /etc/gdm3/custom.conf:

   [daemon]
   WaylandEnable=true

5. Load the tegra-udrm kernel module:

   sudo modprobe tegra-udrm modeset=1

6. Start gdm:

   sudo systemctl start gdm3.service

7. Log in and verify the Wayland backend is running:

   ps -e | grep wayland

8. Configure the tegra-udrm kernel module to load on boot:

   sudo bash -c 'echo "options tegra-udrm modeset=1" > /lib/modprobe.d/tegra-udrm.conf'
   sudo bash -c 'echo "tegra-udrm" >> /etc/modules-load.d/modules.conf'

9. Reboot and repeat step 7 to verify the Wayland backend auto-started successfully.