this post was submitted on 14 Nov 2025
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I'm ready, but Amd is not. I want 4k 120hz on my TV via Amd videocard. But this stupid hdmi forum is blocking this.
Displayport to HDMI 2.1 adapter?
Regardless, fuck HDMI
I tried.. it didn't work..
I have one working from cablematters. It's slightly finicky (maybe driver issues) but supports HDR, vrr, and 4k@120hz.
Could you sent me the exact product?
CableMatters 102101
And on Amazon; don't think it's widely available anywhere else, unfortunately.
Ignore any commentary about Windows support, because unless something has changed recently, it has poor support on Windows and is missing most features. I have heard mixed things about whether it only supports Freesync on Linux rather than Freesync or VRR. Since my TV supports both and there doesn't appear to be a way to reliably differentiate between the two, I can't confirm either way.
I found it here as well in a local Amazon store luckily: https://www.amazon.nl/Cable-Matters-Unidirectionele-8K-kabeladapter-ondersteuning/dp/B08XFSLWQF
Thanks! I ordered it right away and will test it soon on my TV. I will also first check for firmware updates, since people saying to do first a firmware update.
I'd probably test it out first as it may already have newer firmware, and it gives you a baseline if anything gets better (or worse) after the update. I'll add that Plasma 6 had the best support last time I checked, so test that if you have issues.
Was this an active or passive adapter?
The product description doesn't mention anything about active or passive. Which makes its very confusing for me now.
It has display port as well, for the picky
Sure, but most TVs don't, which is the main issue with wanting to connect any Linux AMD build to a TV
And your TV has HDMI, no?
Which doesn't work with HDMI 2.1 if you use an AMD GPU on Linux. You know, the thing the first comment in this thread was complaining about.
Oh, my bad homie.
Nope. Not my TV. Only hdmi
Dunno who down voted you for this objectively correct take. But that's exactly what I was saying.
I got you back to positive tho.
Is it an HDMI issue or an AMD issue? Given Nvidia have no issues, I’d call it an AMD issue.
Its HDMI forum issue. Because AMD want to implement in their Linux drivers (which are open-source). But HDMI forum do not want them to become open source, see related issue: https://gitlab.freedesktop.org/drm/amd/-/issues/1417
In fact, AMD already invested several months in fully testing and developing 4k 120Hz. Its possible, but the HDMI forum people are blocking this, because the HDMI forum has the latest saying.. Its all about money this world. And the HDMI forum is evil.
So it’s…….an AMD issue.
You know. Never mind.