AMD GPU Problem

**Computer Type:** Desktop

**GPU:** MSI RX 5700 MECH OC (factory)

**CPU:** Ryzen 3700x undervolted and clocked at 3.9 GHz

**Motherboard:** MSI X570 Gaming Edge WIFI

**RAM:** G.Skill Trident Z Neo Series 16GB (2 x 8GB) 288-Pin RGB PC4-28800 DDR4 3600MHz CL16-19-19-39 1.35V

**PSU:** Seasonic FOCUS Plus 750 Platinum SSR-750PX 750W 80+ Platinum.

**Case:** Cooler Master MasterBox MCB-B600L-KANN-S00. Not the best case, but in the basement that is always cold anyways.

**Operating System & Version:** Windows 10 Pro Version 1909

**GPU Drivers:** 20.9.2 (But I have tried others including the newest Microsoft Certified one)

**Chipset Drivers:** 2.07.21.306.

**Background Applications:** Many things, I use this computer for work (Ruby Mine, Chrome, MySQL workshop usually running at all times). They applications never caused a problem before. The problem also usually shows up when I am watching YouTube videos. Like the decoder starts glitching everything else.

[https://youtu.be/uAtaoLjC5OQ](https://youtu.be/uAtaoLjC5OQ)

The black screen problem seems to have gone away with recent updates, but I have a new problem now. It is very annoying and very distracting. Every single day for the past 2 weeks or so, I have been getting these pink line artifacts. I have tried different driver versions, different frame rates (Screen can do up to 4k@120hz 4:2:0 on HDMI 2.0b or 4k@120 4:4:4 on HDMI 2.1), tried DDU, AMD's factory Reset. I even tried lower the power tuning in the AMD Radeon Software to un-OC it. If anyone is has the same problem and have figured out how to fix it, I would appreciate it if you could point me in the right direction. Maybe an HDMI 2.1 cable would fix the problem? But my GPU wouldn't be able to take advantage of the throughput.