922
Valve: HDMI Forum Continues to Block HDMI 2.1 for Linux (www.heise.de)
submitted 5 days ago by throws_lemy@reddthat.com to c/technology@lemmy.world
223 comments fedilink hide all child comments

The HDMI Forum, responsible for the HDMI specification, continues to stonewall open source. Valve's Steam Machine theoretically supports HDMI 2.1, but the mini-PC is software-limited to HDMI 2.0. As a result, more than 60 frames per second at 4K resolution are only possible with limitations.

you are viewing a single comment's thread
view the rest of the comments
[-] Endymion_Mallorn@kbin.melroy.org 77 points 5 days ago

We need more DisplayPort in the world - and better support for multi-monitor setups under Linux.

[-] Kuro@feddit.org 19 points 5 days ago

What are you missing in multi-monitor setups under Linux?

[-] Endymion_Mallorn@kbin.melroy.org 9 points 5 days ago

Every time I plug a second monitor into my Linux PC (Mint), both screens start blinking on and off. Sometimes Win+P works, sometimes it doesn't. I've asked in the Discord, I've tried arandr. Nothing works.

[-] T4V0@lemmy.pt 1 points 4 days ago

3 monitors here and working fine on Elementary OS, Super+P works as well. Are you on Wayland or X11?

[-] Endymion_Mallorn@kbin.melroy.org 1 points 4 days ago

Whatever Cinnamon runs on natively. I have no idea beyond that.

[-] Anafabula@discuss.tchncs.de 4 points 4 days ago* (last edited 4 days ago)

Last I heard Cinnamon does not have stable Wayland support yet. One of the reasons Wayland was made is because multi-screen support on the old X11 is an ugly hack. Unlike wayland, it doesn't play well with screens of different resolutions, refresh rates, adaptive sync compatibility or HDR.

[-] Endymion_Mallorn@kbin.melroy.org 1 points 4 days ago

Oh, then it's probably that issue.

[-] T4V0@lemmy.pt 3 points 4 days ago

Then it would be best to check the version of your distro and session, then go to their github issue list and search for it, if there isn't one provide a issue for them to look at. I also recommend verifying if it's not a hardware issue or cable fault.

load more comments (14 replies)
load more comments (14 replies)
load more comments (14 replies)
this post was submitted on 10 Dec 2025
922 points (100.0% liked)

Technology

77666 readers
2773 users here now

This is a most excellent place for technology news and articles.

Our Rules

  1. Follow the lemmy.world rules.
  2. Only tech related news or articles.
  3. Be excellent to each other!
  4. Mod approved content bots can post up to 10 articles per day.
  5. Threads asking for personal tech support may be deleted.
  6. Politics threads may be removed.
  7. No memes allowed as posts, OK to post as comments.
  8. Only approved bots from the list below, this includes using AI responses and summaries. To ask if your bot can be added please contact a mod.
  9. Check for duplicates before posting, duplicates may be removed
  10. Accounts 7 days and younger will have their posts automatically removed.

Approved Bots

founded 2 years ago
MODERATORS
L3s@lemmy.world
enu@lemmy.world
technopagan@lemmy.world
L4s@lemmy.world
L3s@hackingne.ws
L4s@hackingne.ws