Display Glitch

[sicurg8]

Hello,

Hopefully someone is able to assist me with this issue as I have been unable to resolve for almost a week now. When HDR is enabled on my windows 11 PC, there are glitches. (video attached) Screen will both, blank out (black screen) for 1-3 seconds and at times have like a "glitch" (blue, green, purple flash) appear and disappear within a second.  

 

Equipment:

TV - LG OLEDO55CXPUA

Graphics card: ASUS ROG Strix 3080 "White edition" 

RAM - G.Skill 

CPU - AMD Ryzen 7 5800x

MOBO - Gigabyte B550 Pro AC 

HDMI cable -  HDMI 2.0 - https://www.amazon.com/dp/B086TWQSZC?psc=1&ref=ppx_yo2ov_dt_b_product_details

 

If additional information needed please let me know.

 

So far I have tinkered with a multitude of settings and this "Glitch" will occur in and out of game. The entire screen glitches, it is not specific to application. The entire screen, sometimes it can go 20 minutes without issue, other times it is instantaneous (changing settings).

 

Notably, the "glitch" (blue/green/purple - bars/specs/flash) only occurs when I have HDR enabled within windows 11 display settings

The black screen flash only occurs when I have the refresh rate set to 120hz - 100hz.

The black flash screen does not occur when set to 60hz. 

 

PC Settings w/out issue:

Nvidia control panel -, under Ultra HD, HD, SD.

Resolution = 4Kx2K,3840 x 2160 

Refresh Rate - 60 Hz 

 

I thought that using HDMI 2.0 was sufficient but possibly 2.1 is needed. I'm not sure but pending delivery of a 2.1 HDMI cable presently. 

 

[sicurg8]

Ok so, 

I figured I would post this even though I finally got it resolved.

IT WAS THE CABLE. LOL

HDMI 2.1 for the win. 

 

So yeah, but in case anyone else runs into this issue hopefully they can locate this post and save themselves some time. 

Also took a video of it so others can see what was occurring and compare to maybe what they are experiencing.