I have connected the PC with Shield by USB type A cable. I use linux mint 19 cinnamon (kernel 4.15.0-38-generic). I’m not a developer but a simple user.
My answer: can I run a video (mkv, avi, mov) from PC directly to Shield (and to a projector Optoma HDMI)?
At now, I copy the video files to a usb pendrive and then plug the pendrive into the Shield, or copy the video file to Tegra device and then I run the video file in Shield.