SlackBuildsOrg/desktop/recordmydesktop

recordmydesktop (record desktop sessions to an Ogg-Theora-Vorbis file)

recordMyDesktop produces a file (default out.ogg) that contains a video
and audio recording of a desktop session. It attempts to be easy to
use, yet also effective at it's primary task.

You may consider using the front-end qt-recordmydesktop.