The CF791 FreeSync problems were patched a month ago and FreeSync worked properly without flickering.
My CF791 is now flickering again when using FreeSync with my RX Vega 64. For example: Windmill Demo and FIFA 18 (menus and animated scenes).
Even more worse is the fact that FreeSync is completely failing to work when I decrease the minimum processor state in the Ryzen Balanced Power Plan.
The lower the percentage of the minimum processor state the more tearing.
Graphics Card: XFX RX Vega 64 Black Fan (EK Waterblock)
Operating System: Windows 10 Pro 64 Bit
Driver Version: Radeon Crimson Relive Edition 17.9.3 + AMD Chipset Driver 17.30
Display Device: Samsung CF791 (3440x1440, DP 1.2, 100Hz)
Motherboard: ASUS Crosshair X370 Extreme (BIOS: 1602)
CPU: Ryzen 1700X (PState OC @ 3,9 GHz)
Power Supply: Seasonic Prime Titanium 650W
RAM: G.Skill Trident Z RGB DIMM Kit 32GB, DDR4-3200, CL14-14-14-34 (F4-3200C14D-32GTZR)