Technically, the Steam Machine supports HDMI 2.1. However, Valve and AMD are not allowed to offer an open-source driver for it.

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.

    • panda_abyss@lemmy.caEnglish
      6·
      2 days ago

      You also need cable markings, as both the cable and the port decide what specs to implement, and if they’re standard compliant or not.

      Plus there are active/inactive cables for thunderbolt (and I think usb4) which massively affect performance.

      USB c is better than the shitty port designs of USB before it, but it’s a huge mess.