this post was submitted on 26 Mar 2026
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[–] lambalicious@lemmy.sdf.org 26 points 2 days ago (2 children)

How do I add a DP port to both my TV and my laptop?

[–] fonix232@fedia.io 51 points 2 days ago (2 children)

If your laptop has USB-C it most likely already has DP out.

Your TV? message the manufacturer. tell your friends to message the manufacturer. Demand DisplayPort on TVs. Be the change you want to see in the world.

[–] lambalicious@lemmy.sdf.org 3 points 1 day ago (1 children)

If your laptop has USB-C it most likely already has DP out.

For some reason I always miss this. I checked in software and at least arandr says I have 4 DP Outs. Presumably 2 per USB-C port? I don't know how this actually works.

[–] Carrot@lemmy.today 5 points 1 day ago (1 children)

I think past thunderbolt 4 you get 2 displays daisy chained off of one port. I have a thunderbolt 5 port and I run 2 4k monitors off of it

[–] lambalicious@lemmy.sdf.org 1 points 16 hours ago

Thanks! I'm gonna try and find a USB-to-DP cat'o'tails I can buy for cheap to see what happens.

[–] cmnybo@discuss.tchncs.de 8 points 2 days ago (1 children)

Attach a DP to component video adapter to the TV.

[–] fonix232@fedia.io 1 points 1 day ago (1 children)

While DP ports can output HDMI signal, HDMI ports can't receive DP signal.

Meaning you would buy an adapter that is active, which means it needs to pay HDMI royalties.

Basically, you'd be paying double to the HDMI Forum, to get around their shittiness.

That's kinda... Counterproductive. Don't you think?

[–] cmnybo@discuss.tchncs.de 5 points 1 day ago (1 children)

That's why I said to use a component video adapter. It's an analog signal that has nothing to do with HDMI.

[–] fonix232@fedia.io 1 points 1 day ago

Oh shoot. Somehow I read that as a video adapter component 🤦‍♂️