Using a DP/HDMI adaptor... Question

[xXRaineXx]

So I'm looking to buy a monitor but the model doesn't have DP, but it has HDMI 2.0. The monitor supports 4K 60hz 4.4.4, but I hear that in some cases an HDMI 2.0 capable cable may not be able to push these settings. In that case someone suggested using an adapter.

 

The question is, in what configuration?

 

HDMI 2.0 Cable with a HDMI to DP adapter?

 

Or...

 

DP cable with a HDMI adapter?

 

Which method is required to make a DP connection to a monitor without a DP port?

[Glenwing]

1 hour ago, xXRaineXx said:

So I'm looking to buy a monitor but the model doesn't have DP, but it has HDMI 2.0. The monitor supports 4K 60hz 4.4.4, but I hear that in some cases an HDMI 2.0 capable cable may not be able to push these settings. In that case someone suggested using an adapter.

 

The question is, in what configuration?

 

HDMI 2.0 Cable with a HDMI to DP adapter?

 

Or...

 

DP cable with a HDMI adapter?

 

Which method is required to make a DP connection to a monitor without a DP port?

Using a DisplayPort to HDMI adapter isn't going to give any special advantage over a straight HDMI to HDMI connection unless your graphics card doesn't support HDMI 2.0. Just use a straight HDMI connection.

[xXRaineXx]

1 hour ago, Glenwing said:

Using a DisplayPort to HDMI adapter isn't going to give any special advantage over a straight HDMI to HDMI connection unless your graphics card doesn't support HDMI 2.0. Just use a straight HDMI connection.

I'm using a 1080ti, so that shouldn't be a problem.

 

I'm just concerned that the monitor that I ordered may not push all 4K/10bit/60Hz/4:4:4 with a HDMI 2.0 cable as I've heard that even HDMI 2.0 can just barely push that. But I'm hoping there would be no problem. However in the worst case scenario, someone suggested using a converter adapter to make a DP input I've looked into Amazon JP and found a HDMI to DP converter adapter.

 

However, my concern is which configuration I need as per thread was intended for. If I understand correctly, converter adapters are more than simple adapters as they actually convert the signal. Noted for being pricier than standard adapters.

 

https://www.amazon.co.jp/gp/product/B00S0C7QO8/ref=ox_sc_act_title_4?ie=UTF8&psc=1&smid=A3TN4FURJT6SI3 (sorry it's in Japanese)

This is the active converter in question. Would his be enough to push a HDMI 2.0 cable as a DP connection? As in give it the input capabilities of a DP?

[pyrojoe34]

There's no reason to use an adapter, if the HDMI 2.0 port on the GPU can't do it then no adapter will be able to do it.

 

Having said that, HDMI 2.0 should work fine, the monitor will have at least one input capable of doing the full resolution (not all the HDMI ports are always the same, use the correct one). Unless the monitor requires a dual link (two cables) then the HDMI 2.0 will work fine.

[Glenwing]

26 minutes ago, xXRaineXx said:

As in give it the input capabilities of a DP?

No, if you use a DP to HDMI adapter it will give you the capabilities of an HDMI connection. It's not going to be any better than an actual HDMI connection, you don't get any special extra power by converting from DisplayPort.

 

4K 60 Hz is within HDMI 2.0 spec, there shouldn't be any problems as long as you get a properly rated cable. Most High Speed HDMI cables should work but if you want to be sure then you can get a Premium HDMI certified cable, which are tested to work at full HDMI 2.0 bandwidth.

[xXRaineXx]

8 minutes ago, Glenwing said:

No, if you use a DP to HDMI adapter it will give you the capabilities of an HDMI connection. It's not going to be any better than an actual HDMI connection, you don't get any special extra power by converting from DisplayPort.

 

4K 60 Hz is within HDMI 2.0 spec, there shouldn't be any problems as long as you get a properly rated cable. Most High Speed HDMI cables should work but if you want to be sure then you can get a Premium HDMI certified cable, which are tested to work at full HDMI 2.0 bandwidth.

I do appreciate people are trying to help... but it's hardly helpful

 

First of all, I'm trying to achieve 4K/10bit/60Hz/4:4:4, this is more than a simple 4K/60Hz.

 

Let me try ask a different question.

 

I am using a 1080ti, which has a displayport input. So if I buy a displayport cable and connect one end to the gpu and use a DP to HDMI converter on the other end to connect to the monitor, will that become a displayport connection? Or will it bottlenecked by the converter?

[Glenwing]

1 hour ago, xXRaineXx said:

I do appreciate people are trying to help... but it's hardly helpful

 

First of all, I'm trying to achieve 4K/10bit/60Hz/4:4:4, this is more than a simple 4K/60Hz.

 

Let me try ask a different question.

 

I am using a 1080ti, which has a displayport input. So if I buy a displayport cable and connect one end to the gpu and use a DP to HDMI converter on the other end to connect to the monitor, will that become a displayport connection? Or will it bottlenecked by the converter?

Monitors use RGB color format, which is equivalent to YCbCr 4:4:4. People make a big deal of "4:4:4" in the TV world but it's the everyday standard on computer monitors. HDMI 2.0 is fully capable of 4K 60 Hz 4:4:4. Lower modes like 4K 60 Hz 4:2:0 fall within HDMI 1.4 spec, actually.

 

Images go from the graphics card to the monitor, so graphics cards have output ports (which send images out) and displays have input ports (which receive images in).

 

A DisplayPort to HDMI converter makes your graphics card's DisplayPort output act like an HDMI output. Its capabilities aren't going to be any better than an actual HDMI output.

[xXRaineXx]

2 hours ago, Glenwing said:

Monitors use RGB color format, which is equivalent to YCbCr 4:4:4. People make a big deal of "4:4:4" in the TV world but it's the everyday standard on computer monitors. HDMI 2.0 is fully capable of 4K 60 Hz 4:4:4. Lower modes like 4K 60 Hz 4:2:0 fall within HDMI 1.4 spec, actually.

 

Images go from the graphics card to the monitor, so graphics cards have output ports (which send images out) and displays have input ports (which receive images in).

 

A DisplayPort to HDMI converter makes your graphics card's DisplayPort output act like an HDMI output. Its capabilities aren't going to be any better than an actual HDMI output.

I see... it kinda makes sense.

 

Guess I'll just live with what I get. Since anything is technically an upgrade for me right now.

[Glenwing]

7 minutes ago, xXRaineXx said:

I see... it kinda makes sense.

 

Guess I'll just live with what I get. Since anything is technically an upgrade for me right now.

You'll be fine just using an HDMI cable, no need to overthink things... HDMI supports up to 4K 60 Hz RGB/4:4:4 at 8 bit. It won't do 10 bit color depth but if the monitor only has HDMI 2.0 and not DisplayPort then I doubt it is supposed to support 4K 60 Hz 10-bit... since that is outside HDMI 2.0 spec.

[xXRaineXx]

3 hours ago, Glenwing said:

You'll be fine just using an HDMI cable, no need to overthink things... HDMI supports up to 4K 60 Hz RGB/4:4:4 at 8 bit. It won't do 10 bit color depth but if the monitor only has HDMI 2.0 and not DisplayPort then I doubt it is supposed to support 4K 60 Hz 10-bit... since that is outside HDMI 2.0 spec.

So I was watching this... and Linus talked about using 2 cables to run a single monitor...???...? Hem???

 

Is this a thing? Am I able to run x2 HDMI cables to a single monitor to boost bandwidth?

[Glenwing]

5 hours ago, xXRaineXx said:

So I was watching this... and Linus talked about using 2 cables to run a single monitor...???...? Hem???

 

Is this a thing? Am I able to run x2 HDMI cables to a single monitor to boost bandwidth?

Not unless the monitor is specifically set up to allow that

[xXRaineXx]

5 hours ago, Glenwing said:

Not unless the monitor is specifically set up to allow that

Fair enough.

 

Also, which configuration has the better image fidelity?

 

4:4:4 8bit or 4:2:2 10bit? Apparently that's what you can achieve with the monitor I ordered.

[Glenwing]

8 minutes ago, xXRaineXx said:

Fair enough.

 

Also, which configuration has the better image fidelity?

 

4:4:4 8bit or 4:2:2 10bit? Apparently that's what you can achieve with the monitor I ordered.

Always use 4:4:4 when available, 8-bit vs 10 or 12-bit color depth doesn't really affect much.

[xXRaineXx]

1 hour ago, Glenwing said:

Always use 4:4:4 when available, 8-bit vs 10 or 12-bit color depth doesn't really affect much.

Aright, thanks for the tips.