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Old 3rd Jun 2014, 11:08   #1
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VESA unveils new DockPort standard

Merges DisplayPort and USB 3.1.
http://www.bit-tech.net/news/hardwar...esa-dockport/1
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Old 3rd Jun 2014, 12:02   #2
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Sounds good but i don't think this will come into its own until DP 1.3, isn't DP 1.2 limited in maximum resolution ? So people plugging in a mobile device may not be able to take advantage of higher resolution displays, like a 4k monitor.
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Old 3rd Jun 2014, 14:28   #3
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Quote:
Originally Posted by Corky42 View Post
Sounds good but i don't think this will come into its own until DP 1.3, isn't DP 1.2 limited in maximum resolution ?
Current generation graphics cards all specify a maximum resolution of 4096 x 2160 @ 60 Hz over DisplayPort 1.2.

DP 1.3, when GPU manufacturers start to support it, will enable 8K displays, or a maximum of 81924320
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Old 3rd Jun 2014, 15:05   #4
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Forgive me if I've got this wrong, 4K is 3840 x 2160 yes ? so at present DP 1.2 supports 4K.
Would (I'm guessing) using some of the wires in a DP cable to carry USB and power reduce the maximum resolution a DockPort could display ?
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Old 3rd Jun 2014, 15:27   #5
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I need to read in to this more, but I don't think the author is mentioning the limitation. Dock Port, or at least last I read on it a couple of months ago only supports USB3.1 if it is NOT also carrying full video. If you are pushing something like 4k over it, I think it only supports something like USB2. Not even USB3.0.

Its very bandwidth constrained compared to Thunderbolt. I mean, it IS a nice step forward, but it doesn't really compete. Not really.
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Old 3rd Jun 2014, 15:33   #6
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Quote:
Originally Posted by azazel1024 View Post
I need to read in to this more, but I don't think the author is mentioning the limitation. Dock Port, or at least last I read on it a couple of months ago only supports USB3.1 if it is NOT also carrying full video. If you are pushing something like 4k over it, I think it only supports something like USB2. Not even USB3.0.
'The author' didn't mention it 'cos 'the author' hasn't heard anything of the sort - and can't find anything in previous write-ups or official documentation, either. Got a source on that claim?

EDIT: The closest I've found is a comment on AndandTech's write-up of the same press release, claiming "The problem with Dockport is that in it's current iteration you're limited to 2560x1600@24bit/60Hz with Displayport 1.2 + USB 3.x" - but again with no citation.
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Old 3rd Jun 2014, 16:36   #7
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Sorry i wasn't meaning to start an argument

I only asked because i was curious if DockPort comes at the expense of a lower maximum resolution, making it (maybe) not as useful for mobile devices until DP 1.3 increases the available bandwidth.

By the sounds of it the technical details are a little thin on the ground at this early stage.
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Old 5th Jun 2014, 17:57   #8
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Please. Either DockPort gets some serious traction, or Intel improves (and makes massively cheaper) Thunderbolt. Either way I'm happy. Laptops/tablets/phones need this. It will also make desktops a lot neater I'd love to have 34k screens with a USB3 hub coming (with power) from a single cable from the case, that would rock.
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