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Displayport: A Better Video Interface

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Re: Displayport: A Better Video Interface

#361
post #94

Earlier quoted context omitted.

> headphones plugged into the monitor That sounds cool but I've never see a monitor with a jack. Mine all have many USB ports, but not audio. How common are they?

All the dell midrange monitors I've bought (IE, $400-$1K) have audio jack for headphones.

Interesting you say Dell as most of mine are Dell (3 Dells + 1 MSI), same price range, 2 bought very recently, no audio.

I wonder is it a regional thing (in EU)

Re: Displayport: A Better Video Interface

#362

Earlier quoted context omitted.

> Lots of people use/want HDMI to this day. I’d wager this is less about HDMI, and more about the fact that people want their old DP-less monitors to work.

Display port to HDMI cables exist.

Correct, and the article itself stated the conversion (DP source to HDMI sink) is very easy. Still, I can see laptops choosing the most popular port regardless of the possible conversion. Anecdotally when I go to work the cables I see are mostly HDMI. (This is where I’d love to have a Framework-like laptop, where I could just swap between HDMI and DP output with the relevant output module).

Re: Displayport: A Better Video Interface

#363

With HDMI, I have both video and audio traveling over a single cable. That is _extremely_ convenient. DP _theoretically_ supports audio too, but AFAIK that's not widely implemented.

For some reason, outside of video, HDMI knows how to shoot themselves in the foot almost as well as the USB-IF. HDMI CEC? Has anyone actually got that working correctly? Anyone remember Ethernet over HDMI? Apparently that was a thing. (Not to be confused with HDMI over Ethernet, which actually has some uses.) HDMI for soundbars? We got ARC ports (Audio Return Channel). But it was buggy, didn't support lossless audio,…

Both CEC and eARC have worked without issue for me, for many years.

Re: Displayport: A Better Video Interface

#364
They specifically mention 3 distinct DP connectors - standard, mini, USB-C - plus a bunch of Apple versions of them. That's NOT a feature and is exactly why I prefer HDMI. I don't care about most DP capabilities, I just want to plug in my stuff and have it work. I use 55" 4k TV for a monitor and it works, even with the open source AMD driver. I saw nothing in TFA to make me think DP would benefit me, even if some technical details are better.

Re: Displayport: A Better Video Interface

#365
post #5

I really really hope that my LG has a DisplayPort input. They do offer a monitor that is the same size and I believe the same panel, but the price increase does not really justify it. So sad that I have to bear with the hell of DP/USBc to HDMI converters...

You hope? You’re not able to look at the specs before buying?

Re: Displayport: A Better Video Interface

#366
post #277

Earlier quoted context omitted.

This is great, but then they drop the ball by forcing garbage (“interspersed stuffing symbols”) between the packets instead of letting you use that BW.

You are not giving the full picture in this trade. The people making the spec knew the trade well. You add a lot of complexity to a receiver by forcing it to generate its own timing information from whatever video signal is sent. That work has to be done somewhere and it is most robust when done at the source.

That optional infrastructure on the receiving end is already provisioned in the standard in form of eDP PSR (self refresh).

Re: Displayport: A Better Video Interface

#367
post #277

Earlier quoted context omitted.

This is great, but then they drop the ball by forcing garbage (“interspersed stuffing symbols”) between the packets instead of letting you use that BW.

I think that you can actually transmit audio, or other displays' signals (DisplayPort Multi-Stream Transport), in place of stuffing symbols.

Afaik its a no-no zone. You can only use blanking periods.

Re: Displayport: A Better Video Interface

#370

They specifically mention 3 distinct DP connectors - standard, mini, USB-C - plus a bunch of Apple versions of them. That's NOT a feature and is exactly why I prefer HDMI. I don't care about most DP capabilities, I just want to plug in my stuff and have it work. I use 55" 4k TV for a monitor and it works, even with the open source AMD driver. I saw nothing in TFA to make me think DP would benefit me, even if some tec…

But, HDMI has multiple connectors too.

HDMI, Mini HDMI, Micro HDMI, USB HDMI Alt-mode and there are also some less popular ones.

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