Alright, guys, thank you all so much for the help. I learned a lot, but alas, it was all for naught. Unfortunately, after trying out 4.4, 4.2, and 4.0 that have the 4.15 kernel and even trying out 3.8 which had the 4.04 (if I remember right) kernel, it still had the screen-tearing. Every time I...