I use a app for timer and blinds schedule for our card game. The app overrides the screen time out on my S21 as it has to be on all the time. This all works OK. Problem is I want to mirror the image on my phone to my TabS9fe and both screens have to be on all the time. I am able to mirror the program okay using Samsung flow, but my phone screen times out in around 30 seconds. I do see a option in smart view to keep the screen on but it's grey out.
