GNOME网络显示错误

Question

当运行GNOME网络显示时，我会得到以下错误。任何帮助故障排除将不胜感激。我正在运行一个新的安装Ubuntu20.04。

Gtk-Message: 18:20:32.421: Failed to load module "canberra-gtk-module"
Gtk-Message: 18:20:32.422: Failed to load module "canberra-gtk-module"

** (gnome-network-displays:2): WARNING **: 18:20:33.036: Error calling DBus method during Screencast portal initialization: GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: No such interface “org.freedesktop.portal.ScreenCast” on object at path /org/freedesktop/portal/desktop
** (gnome-network-displays:2): WARNING **: 18:20:33.036: Error initing screencast portal: GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: No such interface “org.freedesktop.portal.ScreenCast” on object at path /org/freedesktop/portal/desktop
** (gnome-network-displays:2): WARNING **: 18:20:33.036: Screencasting portal is unavailable! It is required to select the monitor to stream!
** (gnome-network-displays:2): WARNING **: 18:20:33.036: Falling back to X11! You need to fix your setup to avoid issues (XDG Portals and/or mutter screencasting support)!
** (gnome-network-displays:2): WARNING **: 18:20:53.666: Could not start P2P find: GDBus.Error:org.freedesktop.NetworkManager.Device.NotActive: WPA Supplicant management interface is currently unavailable.

Answer 1

包搜索表明org.freedesktop.portal.ScreenCast包含在xdg-desktop-portal-dev包中。

你必须试着安装它

sudo apt-get install xdg-desktop-portal-dev

然后重新启动并再次检查屏幕广播功能。