Yeah, seems like it should just be working…
You’ve probably already got this covered, but when you created your user monitors.xml config, did you have the dummy plug connected and disabled?
Maybe the config:
- has it included as a monitor and enabled as part of the screen layout
- or possibly doesn’t include it at all, and then GDM just assumes it can/should use it as a new option?


I have a similar scriptlet that I use to open YouTube URLs in mpv, using just and wl-clipboard… I just copy the URL and press my G1 key (it has a keybind of
just yt-pasteattached) which launches the yt-paste snippet below, reads the url from the clipboard, parses it and passes it to mpv.# Parse the clipboard for YouTube URLs and open them in mpv yt-paste: #!/usr/bin/env bash YOUTUBE_URL_REGEX="^https:\/\/(www\.youtube\.com\/watch\?v=|youtu\.be\/)[a-zA-Z0-9_-]{11}" YOUTUBE_PLAYLIST_URL_REGEX="^https:\/\/(www\.youtube\.com\/playlist\?list=)[a-zA-Z0-9_-]+" YOUTUBE_SHORTS_URL_REGEX="^https:\/\/(www\.youtube\.com\/shorts\/)[a-zA-Z0-9_-]{11}" # Youtube URL if [[ "$(wl-paste)" =~ $YOUTUBE_URL_REGEX ]]; then echo "Opening valid YouTube URL" >&2 notify-send --app-name="YT-Paste" --icon=mpv --transient "Opening YouTube URL" mpv "$(wl-paste)" # Youtube Playlist URL elif [[ "$(wl-paste)" =~ $YOUTUBE_PLAYLIST_URL_REGEX ]]; then echo "Opening valid YouTube Playlist URL" >&2 notify-send --app-name="YT-Paste" --icon=mpv --transient "Opening YouTube Playlist URL" mpv "$(wl-paste)" # Youtube Short URL elif [[ "$(wl-paste)" =~ $YOUTUBE_SHORTS_URL_REGEX ]]; then echo "Opening valid YouTube Shorts URL" >&2 notify-send --app-name="YT-Paste" --icon=mpv --transient "Opening YouTube Shorts URL" mpv "$(wl-paste)" # No Match else echo "Clipboard does not contain a valid YouTube URL" >&2 notify-send --app-name="YT-Paste" --icon=mpv --transient "Whoops!" "Clipboard does not contain a valid YouTube URL" exit 1 fi