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Re:Show HN: Control Chromecasts from Linux by londons_explore on Saturday September 19, 2020 @03:19PM (#24529797)
Casting a browser or whole screen can be done with Chrome/Chromium on Linux. Whole screen doesn't work with wayland. Redirecting system audio doesn't work either.

If you redirect a tab which is mostly a single video file, it is smart enough to do the video decoding directly on the chromecast, so you get much better quality/framerate.

Re:Show HN: Control Chromecasts from Linux by mijoharas on Saturday September 19, 2020 @07:13PM (#24530909)
I was interested to find out that the youtube app on an amazon fire stick is supported as a chromecast target now.

It doesn't support casting a browser tab or a desktop though (the latter isn't surprising as I'm under wayland which the parent says doesn't work, but I'd guess a browser tab should work? would be interested in other peoples experiences of this).