Displayport 2.0 - 77 gigabits/sec

Vega

Supreme [H]ardness
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https://www.prnewswire.com/news-rel...d-virtual-reality-applications-300875126.html


VESA-displayport-2-bandwidth-diagram-417x690.jpg



4K Full RGB 10-bit HDR at 240 Hz will be possible!
 
Yeah, it's going to be a bit before we can buy monitors that use this. And will this be over copper or optical? That a lot of bandwidth to send over a long metal cable.
 
I agree, what will be the max length cable without being active?
 
Yeah, it's going to be a bit before we can buy monitors that use this. And will this be over copper or optical? That a lot of bandwidth to send over a long metal cable.
It can't be copper, otherwise we will be limited to something like 1 foot of cable. I'm going to say hybrid to maintain compatibility with older devices. Or they may just say fuck it, and segregate the old and the new for the sake of moving technology forward. I'm actually going to say the latter, also given that they're calling it 2.0 instead of 1.5.
 
Here's to $79,899.99 displays coming out

And we still havent come an inch close to the unlimited bandwidth of the Quantum realm our brains function in.
 
It can't be copper, otherwise we will be limited to something like 1 foot of cable. I'm going to say hybrid to maintain compatibility with older devices. Or they may just say fuck it, and segregate the old and the new for the sake of moving technology forward. I'm actually going to say the latter, also given that they're calling it 2.0 instead of 1.5.


Yeah, Anandtech got a little deeper into the spec then the original link. They're using Thunderbolt 3 to make it work over copper, making the link 80Gbps uni-directional.

https://www.anandtech.com/show/1459...-20-standard-bandwidth-for-8k-monitors-beyond

So that means active cables if you want more than 40 Gbps, or just normal USB-C 10Gbps-per-lane cables/ enhanced DisplayPort 2.0 cables if you want to go passive (up to 40Gbps).

I think it's reasonable, until we get the next version of Thunderbolt figured-out. 8k 120 hz displays are a long way off from being mainstream, and everything else will be easily handled by the passive connector (no DSC required): you can get 4k 165 hz with HDR, or 5k 95 Hz HDR off the new 38Gbps passive connector.

I'm glad Intel opened the patents for Thunderbolt 3, or this wouldn't have been so easy.
 
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40G is the max over normal length cables (not counting exotic active cables that don't exist yet). Practically speaking this is a 50% speed bump over DP1.3. Still need compression for 8K, just like HDMI 2.1.
 
40G is the max over normal length cables (not counting exotic active cables that don't exist yet). Practically speaking this is a 50% speed bump over DP1.3. Still need compression for 8K, just like HDMI 2.1.


No, you can use the same Thunderbolt 3 active cable tech, they just have to adjust the directions (it's not very hard to do this.)

Yes, you still need DSC or active cable for 8k at > 60hz , it was pretty clear, but that's not exactly common display resolution.

You can hit the following resolutions on the new 38Gbps passive cable, without DSC:

4k 144Hz, HDR10
5k 85 Hz, HDR10.
I believe Apple's 6k monitor might work at 60hz HDR without DSC, but it's cuttting it close.
 
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No, you can use the same Thunderbolt 3 active cable tech, they just have to adjust the directions (it's not very hard to do this.)

Yes, you still need DSC or active cable for 8k at > 60hz , it was pretty clear, but that's not exactly common display resolution.

You can hit the following resolutions on the new 38Gbps passive cable, without DSC:

4k 144Hz, HDR10
5k 85 Hz, HDR10.
I believe Apple's 6k monitor might work at 60hz HDR without DSC, but it's cuttting it close.
Even at 60 Hz, 8K SDR is still too much at 44.5 Gbps.
 
Looking at that graph makes me want to puke, it's about the past more than the future. Tech is supposed to go up exponentially but until this generation, they were just going up linearly, no wonder we have been so slow to progress.
 
Looking at that graph makes me want to puke, it's about the past more than the future. Tech is supposed to go up exponentially but until this generation, they were just going up linearly, no wonder we have been so slow to progress.

We went though several years of video standard rollback when marketing convinced CEOs that 1300x768 was good enough to sell things even though that was a lot lower standard then was available at the time. Kinda hard to justify a high bandwidth video cable standard when you are pushing out low def crap as top line stuff. Once 4k became a thing then then older standards were no longer good enough. Now that folks are talking 8k +, video cables standards have to start climbing again.
 
We went though several years of video standard rollback when marketing convinced CEOs that 1300x768 was good enough to sell things even though that was a lot lower standard then was available at the time. Kinda hard to justify a high bandwidth video cable standard when you are pushing out low def crap as top line stuff. Once 4k became a thing then then older standards were no longer good enough. Now that folks are talking 8k +, video cables standards have to start climbing again.

Which is why we still have monitors shipping without DP, what is the point of making a standard when VGA could do what you were asking. Ya I pushed 2560x1440 over VGA once in a pinch. It kinda hard to justify putting in an expensive controller for a standard that doesn't do anything a 20-year-old standard does. And that lack of forward thinking is part of why DP hasn't taken over. If they had just made that shit 4k ready from the start DP might be everywhere right now and the price of the controllers would have come down.
 
talk about future proofing . that cable must be THICC

Go back to Reddit with you. It uses the same old Thunderbolt 3 cable with 4x20Gbps lanes for 80 Gbps, and the same old USB-C cable (4x10Gbps) for everything else.

It's actually maxed-out, not forward-thinking. But since 8k 120hz is not going to become common for consumers in the next DECADE, it seems just fine.

The active cable can do 8k 90hz without DCC (180hz with DCC or 4:2:2 chroma). That's up from 30hz!

Displays more likely to be used by you for gaming anytime soon? You can run 5k HDR10 at 165Hz, and at Apple's new 6k display at 120hz HDR10.
 
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Tough to imagine TV and home theater hardware OEMs going this route so I doubt I'll ever own a device that uses it.
 
It can't be copper, otherwise we will be limited to something like 1 foot of cable. I'm going to say hybrid to maintain compatibility with older devices. Or they may just say fuck it, and segregate the old and the new for the sake of moving technology forward. I'm actually going to say the latter, also given that they're calling it 2.0 instead of 1.5.

Nah you can get high speeds over copper. A good example are QSFP28 cables. QSFP is a form factor for networking gear, it has 4 parallel lanes (much like Displayport) for data, but in each direction so 8 total. The newest QSFP28 spec is 25gbits per lane so 100gbit total in each direction. You can do that over a passive cable up to like 5 meters. They are big bios, but they work just fine. Here is an example of them. Past that they have to go active and/or optical but you can get a reasonable distance out of passive.

That said, I wish they'd change display connectors to just be MPO fiber. While they are more expensive than copper cables they are small, flexible, and will have more bandwidth than we'll need for a long time.
 
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