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.

  • Anafabula@discuss.tchncs.deEnglish
    3·
    3 days ago

    You don’t need Thunderbolt for Displayport alt mode. It’s a separate spec that can also be implemented independently. I have a dock that’s not Thunderbolt but supports DP alt mode.

    But Thunderbolt has some additional stuff too