So I got an USB-C → DisplayPort cable from them. I talked to a friend (and also read on several places) that Cable Matters cables are good. I even tried it out, but on my case it only make things worse: I still got the wrong colors, and now also lost the 4K resolution. If you are from the 90’s you’ll remember this:Īnyway, the display uses that instead of RGB, colors looks “weird”, and if I try to force RGB on the display settings I get this beautiful thing: It thinks the display is a TV (for some reason), and use “TV-like colors”.īy TV-like colors I mean YPbPR, which is an analog color space commonly used by DVD players and such. The problem here is related to a really old macOS bug. This flickering is the same thing that happens if I try to force 4K 60Hz on the current poor adapter + HDMI setup (you can do that with swithresx). Probably from China, probably lying about their bandwidth… which would be a surprise to a grand total of 0 people. The cable is from another brand but looks exactly the same as mine. Looking around on the internet, I found this post of someone saying they had the same issues - but on a Hackintosh. The cable arrived, I tried it in and it solved all my 60 Hz!!!!!! That said, I tried an USB-C → miniDisplayPort cable. But… it hasn’t arrived yet (almost 3 weeks later).Īnd given the fact that the bluetooth interference seems to happen with several different adapters, I am pretty sure it will happen with this one too - and maybe it won’t even fix the issue anyway. You can actually find several people doing hacks like this or using aluminum foil and etc to prevent it on YouTube… with several different adapters…īecause of that, I had already ordered an adapter from Dell together with display, which, in theory, has enough bandwidth for 4K at 60Hz. I have to constantly adjust it a little bit bent so it interferes less. I already hated this adapter before because, I shit you not, it causes interference on my headphones. I was pretty sure my HDMI cable supported 4K 60Hz and it didn’t had any text on it saying anything (thanks China), so I decided to look into the adapter specs to rule it out, and, sure, Apple is selling poor adapters:ġ080p at 60Hz or UHD (3840 by 2160) at 30Hz on: … Looking at the system report, we can get a pretty good idea about what the problem is: While the image was OK, I got the feeling it was laggy. Somethings went wrong, lets check them out… Lag I already had an USB-C → HDMI, USB-C and USB-A adapter (the official from Apple), and just hooked up the new display hoping everything would work.īut this post wouldn’t be any fun if this was it. Without further ado, let’s get to it! The obvious stuffįirst try was the obvious try - as it should be. Point being electronics are expensive af here. It is just too much money for a display.įWIW: This one I got was already nearly 3k BRL, which is also a lot of money. A small issue though: I live in Brazil, they don’t sell it here, and if they would, it would cost like 10k BRL. A single USB-C cable for both video and charging the Mac was pretty appealing. This is what I tried, what worked and what didn’t. I recently got a 4K display, and it didn’t work as I expected on my MacBook Pro.
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