Ok, now this is getting frustrating.
Previously I was fighting with a Philips 43PUT4900 4K TV, and came to the conclusion that there just is no way to get 4K@60Hz with that set and the Intel NUC6I5SYK + CAC-1170. I had to add a custom modeline to get the resolution to work, and even then the audio would cut out all the time.
Well, now a new TV set, a LG 43UH60 series. When I plug this in, I get an automatically detected resolution and modeline which should work just fine:
3840×2160 (0x46) 594.000MHz +HSync +VSync +preferred
h: width 3840 start 4016 end 4104 total 4400 skew 0 clock 135.00KHz
v: height 2160 start 2168 end 2178 total 2250 clock 60.00Hz
But still the exact same symptoms as before… some white pixels flickering and audio that keeps cutting out multiple times every minute. It’s not the amp (tried with two different ones as well as internal TV speakers) it’s not the OS (tried with Ubuntu 16.04/16.10 and Windows 10), it’s not the HDMI cable (tried way too many), and I’m starting to think it’s not the TV either…
So, then, what the heck? Do I have a defective adapter? Bad luck? Starting to run out of hair to pull out…