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DisplayPort: A Better Video Interface
(hackaday.com)
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this post was submitted on 05 Sep 2023
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I used to think DisplayPort was the future, about 10-13 years ago.
By now I feel it has come and gone.
HDMI 2.1+ is making its way in everywhere.
Pretty sure the PC desktop segment will keep the port alive for a while, but right now it doesn’t seem like a very useful port apart from having a plug that claws itself in place and is often unnecessarily hard to unplug.
With Ultra High Speed HDMI (these names are ridiculous, seriously, look at the standard names) there’s very few, if any, reasons to use DP, apart from compliant HDMI cables costing an arm and a leg.
To be honest I’m struggling a bit to understand why it’s not just all pushed through a CAT6/7 Ethernet cable at this point.
DisplayPort is a better system than HDMI. It even can ride piggy back on USB-C, which means a display can both power a computer on the same line as it connects to a laptop with. DisplayPort also supports daisy chaining(although it's not a common feature on monitors), so you could potentially have a single USB-C cable going to a laptop and then have multiple monitors connected with needing a dock or anything of that sort.
But (most of that) that’s the display port standard, not the plug.
DisplayPort over USB-C works mostly fine, except that it’s “fine”, not perfect. Daisy chaining tends to make it less fine.
It’s a better standard, but a worse plug. Important distinction.
That doesn’t matter in the long run though. Better doesn’t always win.
Just look at how USB won over FireWire. And FireWire could daisy chain too
My iPhone 13 Pro syncs slower over USB than my second generation iPod did over FireWire.
While I obviously can’t blame that fully on USB, it’s an ironic observation, especially since my OG iPod would be 21 years old now, if it still worked.
Your iPhone 13 syncs slower over USB because Apple decided to stay on Lightning connectors, which use USB 2.0 on the other end. Although FireWire was faster back when it co-existed with USB, the USB standard has surpassed it a long time ago with more power, faster speeds, and better physical connectors.
I know, and commented on it (just not explicitly).
The irony is still there though.
And for many years it was an actual limitation of the USB interface as well. Only with USB 3, which didn’t see widespread adoption until 2009-2010 did USB surpass FireWire 400 speeds. And let’s not forget there was FireWire 800 as well.
Shift the argument back to 2012 before Lightning and it still holds. Their point is that USB 2.0 is slower than FireWire was. FireWire had been dead for years by the time USB 3.0 came around, and USB 3.0 required bulky connectors that never really caught on with mobile devices. It wasn't until USB 3.1 with the C-type connector came along in 2015 that mobile devices finally started seeing wired transfer speeds that could meet or exceed FireWire.