Realistically I hope they work solidly through USB-C. I'm tired of piling up expensive high quality monitors I can't use because they keep changing the connections every 3 or so years.
And they really need to have larger displays 30"+ for anything 4K and beyond. There's not much point to a 27" 4K monitor if you have to double the scaling just to read anything. 8K at 27" would be a complete waste.
Here’s the headline and lede, which I thought were a pretty effective TLDR:
> VESA PUBLISHES DISPLAYPORTâ„¢ 2.0 VIDEO STANDARD ENABLING SUPPORT FOR BEYOND-8K RESOLUTIONS, HIGHER REFRESH RATES FOR 4K/HDR AND VIRTUAL REALITY APPLICATIONS DisplayPort 2.0 enables up to 3X increase in video bandwidth performance (max payload of 77.37 Gbps); new built-in features enable improved user experience, greater flexibility and improved power efficiency
This is all nice and dandy but there is not even a DP 1.3 MST hub on the market ...
Of course, that might be because Intel IGP is still stuck on DP 1.2 and so an overwhelming majority of laptops are DP 1.2 only as well. But for video cards, we have been there for three years now: nVidia went full DP 1.4 with Pascal in 2016 AMD has been DisplayPort 1.4 since Polaris at least in 2016 as well.
As an aside, I am unclear whether https://nvidia.custhelp.com/app/answers/detail/a_id/4674/~/g... enabled them on most Maxwell cards as well? https://www.geforce.com/hardware/desktop-gpus/geforce-gtx-95... still says DP 1.2.
I'm impressed that they're able to squeeze 77 Gbps through a USB-C connector, when Thunderbolt is 40 Gbps, and USB 3.2 Gen 2×2 is only 20 Gbps.
When will this stuff run into the physical limits of copper?
I'd really like for PCs to send a wakeup to the TV. My AVC and ShieldTV can both wake up a TV connected for display, why can't a general computer do it? Currently using a 42" 4K high refresh TV as a monitor (would prefer 36-38" 4K).
I've resolved to just use a classic screen saver to keep the TV from shutting off, which causes total chaos when resuming from sleep.
Aside: anyone else notice how hard it is to actually use a screensaver these days. Linux desktops have removed it from in the box mode, and windows has totally obscured it away from you.
At 8K, 120hz ( Pro Motion, hopefully someday on Mac ), 10bit colour, that is roughly ~145Gbps of Raw Bandwidth requirement.
At 6K, 120hz, 10bit ( Basically Pro XDR with 120Hz ), that is roughly ~88Gbps of Raw Bandwidth.
The above two scenario aren't too far off. Although a 5K / 120hz / 10bit only needs ~64Gbps. I assume in two config above they will have to use 2 x DisplayPort 2.0 ?
( That is assuming Apple will gives us Pro Motion on Mac, why they haven't done so is beyond me. And Why Windows haven't done something similar? )
So the future USB4 and DisplayPort 2.0 will both be based on Thunderbolt 3. Are there any reason why TV keep sticking to HDMI? ( NIH Syndrome? )
And since DisplayPort 2.0 essentially turn TB3 into a one way connection, does that mean there will be no more USB Pass through or Charging Laptop while using it Display?
No mention of "Variable Refresh Rate" which is now in HDMI 2.1. I'm really hoping once that's standardized it'll put an end to the Gsync/Freesync nonsense we're currently dealing with.
On that topic, I was a bit sad to see that USB-C alternate mode wasn't picked up as the display solution for the Pi 4. I have multiple devices that work this way, and it has been a very pleasant experience.
Wow, DisplayPort 2.0 offers literally twice the bandwidth of the latest HDMI spec:
HDMI 2.1: 16 Gbit/s per pin, 3 pins total, less efficient 8b-10b encoding: 16×3×8/10 = 38.4 Gbit/s
DP 2.0: 20 Gbit/s per pin, 4 pins total, more efficient 128b-132b encoding: 20×4×128/132 = 77.576 Gbit/s
The article claims "77.37 Gbit/s" but I think that's a typo+rounding error (.57 → .37)
I had an old man moment recently when I upgraded my PC and my fancy new GPU came with 1x HDMI and 3x DisplayPort adapters. My perfectly good dual monitor setup (which I'd been using with DVI cables) was suddenly obsolete.
They both handle HDMI so I ended up getting an adapter for one, but I never even thought this would be something to worry about. And I'm not sure if it's DP related but when I wake the PC from sleep one of them has a frozen image for a little while until Windows realises it has to start animating again.
VGA worked well enough for more than a decade (and still does today)
My work laptop, an HP Elitebook, has only a Displayport for political reasons (HP wanted to push Displayport adoption). Do you know what presentation infrastructure has Displayport? Absolutely nothing. The world decided upon HDMI to be the de-facto-standard.
So I am stuck carrying dongles and adaptors around (which means I will never have the one I need on hand) - or, if I am very lucky, I get a meeting room with a Clickshare device (which works reasonably well, but might be unpopular with external colleagues because it means installing some piece of software onto your laptop)
I know how standards work ... but for the sake of it, we do not need another option that brings virtually nothing to the table.
I've been having a lot of problems with DisplayPort KVMs. I have a 4K monitor and at the time of purchase, I think DisplayPort had better specs. But there are very few KVMs at the 4K resolution. The one I got was literally a switch in the sense that it didn't emulate the video and usb on the disconnected side. There seems to be lots of problems with disconnected DisplayPort devices and drivers. For Linux I found that shutting off the monitor would result in the video not coming back on unless I manually did a "xset dpms" call through ssh. In the end I now got a cheap second monitor and a USB switch for the keyboard/mouse. It just takes up a lot more space.
Referring to USB-C connections as "alternate mode" makes me wonder if Thunderbolt 3 will be inferior, signal-wise, to whatever physical port is being considered (was designed?) for DisplayPort 2.
> Beyond-8K Resolutions
I'm also gonna need a sound system with a 200 dB dynamic range, with speakers demonstrating a flat response out to 100 kHz.
As far as I can tell there is still no support for touch screen displays. It is a shame that the data rate gets higher and higher but this simple feature is still missing.
So, USB 4 will support alternative mode with DP 2.0?
Built on Thunderbolt 3. Neat.
Please no more video ports
I love DisplayPort !
The HDMI protocol works better. Period.
I wish they built the following simple protocol: "Operating System: Hey monitor, are you there? Monitor: (immediately) Hey OS, I'm still here, just give me a moment to turn on. OS: Ok I'll wait and not put user's windows on one monitor.
That way we won’t have this window shuffling nonsense that has plagued multi monitor setups since we started putting pcs to sleep instead of turning them off.