I have problem with AMD FreeSync, causing black screens. When FreeSync is turned on in Radeon settings and also in monitor settings I'm encountering screen "blackouts" for about 1-2 seconds. These are happening irregularly but I think it happens mostly when the game loads new content. This only happens when I'm playing 3D videogames (mostly in fullscreen). But when I turn FreeSync off in Radeon settings and in monitor settings the problem is gone. How can I solve this? Is it because I don't use a DisplayPort cable?
Monitor: Acer Nitro VG220Qbmiix (connected to GPU with HDMI 1.4 cable)
GPU: ASUS EXPEDITION RX570 OC 4GB
PSU: Seasonic SS-500ET-T3 (500W)
CPU: AMD Ryzen 5 2600