I've tested a few of the sample apps that use the Google Cast remote display API. They all have the same issue:
I can connect to chromecast fine. Then I get a Blank screen (and no sound).
In Android studio, my only hint is the following message:
Presentation is being immediately dismissed because the display metrics have changed since it was created.
Any ideas?
Fixed at last! CM fixed it. All builds after 2016-03-15 are fixed.