CINELERRA-GG supports 2 separate preferences for the playback configuration. CINELERRA-GG can be operated in a single or dual screen configuration, both by using Xinerama or dual screen configuration of X windows. It will take some setup using Xconfig to make this work.
The Settings → Preferences menu has Playback A and Playback B tabs. The target display and audio device configuration can be separate, to support up to 2 display and/or audio device stations. The active configuration displays an asterisk (*) in its selection tab and the selected tab will be made active when OK is pressed. For example: you may have a dual screen monitor system with the left screen showing the CINELERRA-GG main window and the right screen showing the composer. Another setup might use a monitor for the left screen and an HDTV as the right screen displaying the composer. When a playback configuration is selected, the audio/video device configuration is switched to the playback selection. The active playback setup can be changed through use of the menu pulldown of Settings → Preferences or via the remote control menu selection (see the section Remote Control for DVB for more detail).