Okay, so ELI 5 why I would now use HDMI instead of DP?

All my monitors support DP, my GPU has more ports for DP ...

I am genuinely interested as I've never even considered using HDMI for my Desktop.

> Okay, so ELI 5 why I would now use HDMI instead of DP?

For A/V stuff: CEC and (e)ARC.

* CEC: control one device, and downstream items receive instructions so you're (ideally) not fiddling with multiple remotes.

* ARC: the TV/display can decode audio/video and pass the audio to a sound bar or other audio system.

If you’re using a TV. They rarely have DP ports.

HDMI is a king on consumer TVs. Linux (in form of SteamOS) is becoming a major console gaming platform thanks to Valve.

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What’s DP? My desktop and laptop both have HDMI.

Display port. Most monitors support it.

Unfortunately not if you're running a mac

HDMI 2.1 carries more bandwidth than DisplayPort 1.4. Plenty of GPU/monitors have that port arrangement, as recent as Nvidia's RTX 40 Series.

Yeah but this is for amdgpu and they had DP2.1 support for a while now.

I ran fiber optic HDMI from my office to my living room for 4K120 HDR+VRR couch gaming with no added latency or loss in quality. Works great. My LG C1 even supports FreeSync so VRR even works, but I have to route the HDMI directly to the TV. My receiver does not support FreeSync and only supports HDMI VRR. Presumably with this patch I will be able to run HDMI 2.1 VRR through my receiver and not have to treat my desktop as a special input.

It's just nice when technology is not hampered by nonsense.

That doesn't help when the monitors don't have DP2.1 support.

I havent seen a monitor (besides tvs) that has HDMI2.1 but not DP2.1

I can tell you mine does: a Corsair XENEON 27QHD240. Or the somewhat popular and badly named Acer Nitro XV275K P5biipruzx

I'd say it's usual for displays released in the 2-5 years old range. HDMI 2.1 got somewhat quick monitor support for consoles, but search for "first DP2.1 monitor" gets results from 2024

And that parenthetical is exactly why people care.

TVs.

lots of linux based boxes are used with TVs.

Because your motherboard only supports HDMI. The last three I used had HDMI, and sometimes VGA.

I have been using HDMI to game on TV for most or all of my adult life. Mostly console gaming. A few years back I built a dedicated gaming rig, but I still use it with a controller from my couch connected to a TV.

So this is a win for couch gamers and open source in general.