I'm trying to record a video, but nothing is happening when I'm pressing Ctrl+Alt+Shift+R, while the wiki claims that I'm supposed at least to see a red circle at the bottom.
Are there some prerequisites? I've just installed the Gnome and haven't tweaked any settings. Here's some system info:
lsb_release -a Release: 12.10
$ gnome-shell --version GNOME Shell 18.104.22.168