How to change screencast duration in GNOME 3 screen recorder?

Question

I want to change the length of my screencast recorded with the GNOME 3 Screen Recorder from the default 30 seconds to 30 minutes. How do I do that?

Answer 1

1. Open the dconf-editor
2. Find org.gnome.settings-daemon.plugins.media-keys in the tree of settings
3. Find the setting named max-screencast-length (the default value is 30 seconds)
4. Change it to 600 seconds for 10 minutes (10 * 60 seconds), or 1800 seconds for 30 minutes (30 * 60 seconds)

Answer 2

Open a terminal by pressing Ctrl+Alt+T and type:

gsettings set org.gnome.settings-daemon.plugins.media-keys max-screencast-length 1800

Which will set the maximum screencast length to 1800 seconds, which is what you want! ;-)