Failed to connect to Mir: Failed to connect to server socket: No such file or directory Unable to init server: Could not connect: Connection refused (gst-plugin-scanner:23087): Clutter-CRITICAL **: Unable to initialize Clutter: Could not initialize Gdk (gst-plugin-scanner:23087): Clutter-Gst-CRITICAL **: Unable to initialize Clutter

Usage: gst-device-monitor-1.0 [OPTION...] [DEVICE_CLASSES[:FILTER_CAPS]] [DEVICE_CLASSES[:FILTER_CAPS]] … Help Options: -h, --help Show help options --help-all Show all help options --help-gst Show GStreamer Options Application Options: --version Print version information and exit -f, --follow Don't exit after showing the initial device list, but wait for devices to added/removed.