Konstantin,
Regarding the above post, this means, the problem most likely isn’t on my end as I use the same settings for Primal that I do for tH.
There was a post on another thread (Title: HELP!!) that suggested to turn down resolution. Hog wash. I use 1920×1080 (60hz) on both Primal and tH and Primal has no issues on working. USB 3.0 has no issues either for the same reason. That guy did something different to get his to work. So, his post (for me any ways) is no help at all.