Hi I am running ubuntu-mate 16.04 on my raspberry pi 3 and I connecting the device via HDMI cable to my Sony Bravia 20 inch LCD TV. I am having issues with playing youtube videos. The sound and video starts slowing down until I cannot even stand hearing it. here is the link to test:- https://www.youtube.com/watch?v=tcYCmiKM-Ug There are other videos in youtube that having the same issues.