I am on macOS Big Sur using OBS Studio 26.0.2 (currently the latest version).
If I activate "Fullscreen Projector (Preview)" from the canvas targeting to my second monitor (without streaming/recording at that moment), I get a black screen on the second screen (in a new desktop), and my default screen turns in s.th. like fullscreen (but not really) and shows the preview. If I press ESC, it returns to a normal mode on the main screen but the black new desktop on the second screen remains (until I close OBS).
So I have three questions at the moment:
- Is it necessary to stream to be able to see a preview on the second screen?
- Why does the OBS Studio change on the first screen? My expectation is that this remains unchanged and I can control the scenes, audio, etc.
- How can I stop the preview on the second screen?
My goal is to have a discussion with my colleague. His video is inserted via OBS.ninja. And I want to be able to share a PPT or s.th. else in addition. The final result shall be "streamed" to my second screen and this screen is shared in a Webex/Webinar session then.
twindux said:
I've done this on 24.0.x and 25.0.x....not on Big Sur, but....
Fullscreen Projector (Preview) set to the EXTERNAL screen should send your final production out to the external screen. So if you then use long-distance HDMI...or as I've done, cast my second screen to a remote Apple TV on the same LAN (Haven't tried Chromecast)....it sends your final production to your external screen.
OBS on the producing computer looks as expected, and on the "preview" remote screen, you have the final production, with no window, no frame...just a fullscreen.
To get audio ouput to your external screen, you have two options:
1. set your Mac sound output to your external screen (HDMI or the name of your AppleTV) then make sure OBS Audio Output is set to "Default" or....
2. Choose your HDMI device or Apple TV in the Settings > Audio > Advanced > Monitoring Device.
Click to expand...
Will try this today! Also been looking for this solution. (Stream church service to YouTube and also use that feed for closed circuit in the church overflow area)
