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  Topic Review (Newest First)
03-19-2020 04:20 PM
Destrto I have also confirmed that the DisplayPort to HDMI adapter I bought, does NOT work alongside an Active HDMI cable. Only with a standard "Passive" cable.

Just to keep some clarity as to what is being used.

I am using Monoprice brand everything at the moment to try and keep things consistent.

-Monoprice DisplayPort 1.2a to [email protected] HDMI Active UHD Adapter
-Monoprice DynamicView Active High Speed HDMI Cable ([email protected], HDR, 18Gbps, 34AWG)

Using the above 2 together provides no signal to TV. That could be because they are both listed as "Active". I'm not sure. Monoprice staff stated that they would, in fact, work together. But I have confirmed otherwise.

And I'm still waiting on this to come in
-Monoprice Certified Premium High Speed HDMI Cable ([email protected], HDR, 18Gbps, 28AWG) "Passive"
03-17-2020 06:55 PM
skupples people like to trash Monster brand cables, but they work, and last forever. Or at least, used to. Still have my braided lines from playing bass in high school.

https://monsterstore.com/collections/cables

... lol, hmmm.... their products still exist. good news, the 15 foot 4K hdmi cable is only $25 these days.
03-17-2020 06:46 PM
Destrto
Quote: Originally Posted by JackCY View Post
I think people used to buy those Club3D cables, are they any better? No idea, read reviews from users, are they expensive? Yes Are they are hard to find and buy? Yes, at least outside US.
Also optical cables exist for long distances and other non wired solutions.
Would not want a converter unless you know your HDMI GPU output is busted and it's not the cable.

Usually "better" cables will be thicker and should have more shielding, use thicker wires, hopefully better connectors with better shielding.

There used to be HDMI2.1 cables but the prices were nuts. Nowadays the cheap brands sell them but you can probably guess that all they did was rename their 2.0 cable and leave to customers to test and find out. The long Club3D HDMI 2.1 cost a fortune.
So I just received the DisplayPort 1.2a to HDMI adapter in the mail today. Tried it with my Active HDMI cable and it would not provide a signal. So, I tried it with another HDMI cable and picture came up fine .I was able to set the resolution to 4k, although it still wanted to default to 30Hz, i was able to change it back to 60Hz no problem.

I pulled up a game, Division 2 again, since thats been my control so far. Let it run for a few minutes and did not experience any static. Which is great!. Maybe it was an issue with that HDMI cable all along? Who knows at this point. I will be trying a premium HDMI cable that is of thicker gauge that is coming in the mail in a couple of days to see that works as well.

This HDMI cable I'm using for testing is too short to run through my wall, the way I have things managed, but I am able to reach my pc if I just let it hang behind the TV. The new cable coming in the mail will be long enough to fish back into the wall. So, I'll keep everyone updated and see what happens.

I am also declining the Warranty repair, because they stated it will 3-4 weeks to return the TV, and they are not willing to provide a replacement for the time i will be without a TV.
03-16-2020 10:12 PM
JackCY I think people used to buy those Club3D cables, are they any better? No idea, read reviews from users, are they expensive? Yes Are they are hard to find and buy? Yes, at least outside US.
Also optical cables exist for long distances and other non wired solutions.
Would not want a converter unless you know your HDMI GPU output is busted and it's not the cable.

Usually "better" cables will be thicker and should have more shielding, use thicker wires, hopefully better connectors with better shielding.

There used to be HDMI2.1 cables but the prices were nuts. Nowadays the cheap brands sell them but you can probably guess that all they did was rename their 2.0 cable and leave to customers to test and find out. The long Club3D HDMI 2.1 cost a fortune.
03-16-2020 07:57 AM
Destrto
Quote: Originally Posted by JackCY View Post
You should test your cables if you can for sure. I've had DP1.4 cable which should do 4k120 > 1440p240 yet the cable was only capable of 1440p85, so this DP1.4 and same brand HDMI2.0 cables went where the heck they came from, the DP cable itself was made from HDMI specs cable when I read the fineprint on the cable sleeve itself, yep, cheaping out, claiming good specs and then failing to deliver them, it could do HDMI1.4/DP1.0 not DP1.4 specs. There is a ton of snake oil and poor cheap cables around. This becomes more and more important the longer the cables is. That's why monitors come with 1.2m short almost unusable cables etc. they are cheap and probably low bandwidth too if they were any longer.
There is no easy way to test a cable without having an overly capable display at hand somewhere, ask a friend who has a 4k120 or similarly demanding bandwidth TV/monitor to test a cable on. Some testers probably exist, expensive to buy and manufacturers clearly don't bother to use them either to QC their cables.

Really want to make sure that your cable is up to snuff. Borrow a verified cable, etc. to test with is another option.
Yea I did a quick Google search for hdmi cable testers, they are quite expensive. haha.

I think I'll start searching for some better quality HDMI cables. Or possibly even DP to HDMI if there are any around.
03-14-2020 06:23 PM
JackCY
Quote: Originally Posted by Destrto View Post
So, this morning I found a setting called GPU Scaling within AMD Radeon. Along with Integer Scaling. Apparently, after enabling either of those, I am able to see YCBCR 420 available. So, of course I tried it. Started up Division 2 and played for about 10 minutes.. And wouldn't you know.. No static!?

I did still notice that I would get occasional white bar flashes along the bottom of the screen. Would flash for a fraction of a second. Barely noticeable.

Could this mean that it is, in fact, my HDMI cable that cannot carry the bandwidth?
You should test your cables if you can for sure. I've had DP1.4 cable which should do 4k120 > 1440p240 yet the cable was only capable of 1440p85, so this DP1.4 and same brand HDMI2.0 cables went where the heck they came from, the DP cable itself was made from HDMI specs cable when I read the fineprint on the cable sleeve itself, yep, cheaping out, claiming good specs and then failing to deliver them, it could do HDMI1.4/DP1.0 not DP1.4 specs. There is a ton of snake oil and poor cheap cables around. This becomes more and more important the longer the cables is. That's why monitors come with 1.2m short almost unusable cables etc. they are cheap and probably low bandwidth too if they were any longer.
There is no easy way to test a cable without having an overly capable display at hand somewhere, ask a friend who has a 4k120 or similarly demanding bandwidth TV/monitor to test a cable on. Some testers probably exist, expensive to buy and manufacturers clearly don't bother to use them either to QC their cables.

Really want to make sure that your cable is up to snuff. Borrow a verified cable, etc. to test with is another option.
03-14-2020 05:50 PM
Bad5ector Or something along that chain isn't playing nice with the signal at full RGB. I find it odd that when you turn down the hz on the display to 24, you can't run 4:4:4 without static. That would reduce bandwidth to an acceptable level I would imagine. Its when we are talking about 4k60hz @10bit 4:4:4 chroma sub sampling with HDR turned on we push that 18gb/s of HDMI 2.0. If you wanted to do all that at once, you need to wait if HDMI is your only connection option or you will have to sacrifice something from that list (60hz or 10bit or HDR for example).

This is all a long winded way of me saying, I don't think it is entirely bandwidth if you say that you have already tried a lower refresh rate. I think if you were to select 24Hz for a refresh rate, and then set all of your other display settings the way you used to, the max bandwidth would only be roughly 11gb/s. So unless you have a really bad HDMI cable, or one that isn't rated for 18gb/s, you shouldn't see static or have the display cut out. Now with that said, I know that AMD has been having quite the time with their drivers (nothing new there) and there has been some advancements in HDR for certain models of their GPUs.

I also tried to capture the static I was experiencing at higher bit depth and chroma but it seems to be gone now. But I did just recently do a driver update, so, maybe that was my secret sauce.

Hopefully with some more tinkering, you can narrow it down. But I think you might be close.

Good luck!
03-14-2020 10:22 AM
Destrto So, this morning I found a setting called GPU Scaling within AMD Radeon. Along with Integer Scaling. Apparently, after enabling either of those, I am able to see YCBCR 420 available. So, of course I tried it. Started up Division 2 and played for about 10 minutes.. And wouldn't you know.. No static!?

I did still notice that I would get occasional white bar flashes along the bottom of the screen. Would flash for a fraction of a second. Barely noticeable.

Could this mean that it is, in fact, my HDMI cable that cannot carry the bandwidth?
03-13-2020 02:03 PM
Destrto
Quote: Originally Posted by Bad5ector View Post
I'll see if I can grab some screen shots when I get home of what I am experiencing and see if it matches up with what you are seeing. Would be nice to be able to run at a higher colour depth, I find the colours are noticeably deeper and more vibrant when 4:4:4 is enabled even if I have to drop to 8 bit with dithering.
I am able to run 444 at 1080p on this TV. But the TV is rated for HDR and I'm not able to use it within Windows.

Also, it looks like i was not lucky enough to get cross shipping. Apparently want to repair mine and send it back.. So, Ill have to send this TV first and be without a tv while they fix it.
03-13-2020 12:30 PM
Bad5ector I'll see if I can grab some screen shots when I get home of what I am experiencing and see if it matches up with what you are seeing. Would be nice to be able to run at a higher colour depth, I find the colours are noticeably deeper and more vibrant when 4:4:4 is enabled even if I have to drop to 8 bit with dithering.
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