Originally Posted by Ph8te
4k60 SDR is what I use. Chose whichever you like best.
I am really getting frustrated with this TV. I cannot get the Apple 4k to work with it. I set it to 4k SDR 60 Hz, 4:4:4 and it will only display a picture for a few seconds before blanking out. I am really starting to wonder if it is the TV at this point. Any other troubleshooting suggestions?
As I've mentioned earlier, I've tried different cables, tried the Belkin 6ft cable, replaced the Apple TV 4k, tried different settings on the Apple TV and the LG. All firmware is updated on both the TV and the Apple TV.
I hope this information can be of some help to you! This is what I've experienced.
Quick summary - I have the same problem as you - cutting out to static/black screen (on 4:4:4 and 4:2:0). My setup is a 65B7A and an Apple TV 4K, and was using Monoprice certified premium cables for months, 15ft, without issue. All of a sudden, the problems started happening again. Here's what I think was going on: these cables were always looser than I'd expect - for example they slide very easily into the HDMI ports on my tv. no pushback, no grab. Just in and out. This was something I noticed from the beginning, but it worked so I didn't bother to care. I think it was just making a bad connection over time and eventually it was reached a point where it wasn't making a strong enough connection to carry the bandwidth. Additionally, The board on my oled was just replaced which means I received brand new HDMI ports on my TV. The cables were just as loose and I still had the issues.
SO, I've now purchased multiple cables, including another of the Monoprice certified HDMI cable to test. All in 15ft.
Results so far:
-The Monoprice cable seemed just as loose with a brand new cable, so I didn't even try it. Not going to be in the same boat 5 months from now.
-Amazon Basics HDMI cable, 15ft - very grippy in port, used this for 2 days, 10 hours a day 4k 60hz 4:4:4 and have had ZERO issues
UPDATE: was sitting here with my tv on the apple tv 4K home screen, not in HDR or anything (but in 4:4:4 - wondering if I should just try everything on 4:2:0 since technically the cables don't have enough bandwidth to handle 4khdr 60hz 4:4:4) -----Sewell Silverback HDMI cable - decent grip, I've used this going on 3 days now, 10 hours a day 4K 60hz 4:4:4 and have had ZERO issues.
I also purchased a couple of others to try before I make my decision about ripping my current ones out of the wall and having the installer come back to put new ones in. I'm hoping this FastRider I'm going to use starting this evening works (https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
). cable wise it's the thinnest and it'll give the installer the least trouble in the tubing.
So, with that said, why don't you try one of those two cables above (the sewell is more flexible, so maybe make that your first purchase). They're working for me and stable at 15ft, so they should be fine at lower lengths.