I have a Chromebox with Plex Media Player installed (embedded x86_64). I'm also using Lightberry USB. Compiled Hyperion from source with frame buffer grabber ON. Problem is, it only works for boot effects as well as controlling via hyperion mobile app. It does not work for video playback and menu. Am I using the correct grabber? Do I need X11 or QT5? Here's the json config: Here's the log file. Doesn't contain much. I have hyperion working with RPi2 before moving to this setup, that was with PMP and spidev.