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.
