由于以下错误，我无法使用 Wayland 登录（我使用的是 lightdm）。如果我切换到 Xorg，则一切正常。
bře 17 11:05:31 k-workstation systemd[1746]: Dependency failed for GNOME Wayland Session (session: ubuntu).
bře 17 11:05:31 k-workstation systemd[1746]: Dependency failed for GNOME Wayland Session.
bře 17 11:05:31 k-workstation systemd[1746]: Dependency failed for GNOME Shell on Wayland.
bře 17 11:05:31 k-workstation systemd[1746]: Failed to start GNOME Shell on Wayland.
bře 17 11:05:31 k-workstation systemd[1746]: gnome-shell-wayland.service: Failed with result 'protocol'.
bře 17 11:05:31 k-workstation systemd-logind[1168]: Failed to restore VT, ignoring: Bad file descriptor
bře 17 11:05:31 k-workstation gnome-shell[2021]: Failed to create backend: No GPUs found
bře 17 11:05:31 k-workstation gnome-shell[2021]: Failed to open gpu '/dev/dri/card0': GDBus.Error:System.Error.EBUSY: Device or resource busy
bře 17 11:05:31 k-workstation systemd[1746]: Starting GNOME Shell on Wayland...
我正在运行 Ubuntu 20.04，但我不知道如何解决这个问题。