Linux users seeking high-resolution image display at fast frame rates via HDMI connections may face disappointment due to restrictions imposed by the HDMI Forum. The HDMI Forum, which controls the HDMI standard, has reportedly informed AMD that an open-source implementation of the HDMI 2.1 specification is not permitted. This restriction prevents tools like AMD’s FreeSync from functioning over HDMI connections at resolutions and frame rates such as 4K at 120 Hz or 5K at 240 Hz.
In early 2021, the HDMI Forum did not make the HDMI 2.1 specification publicly available, as noted by the Linux blog Phoronix. AMD engineer Alex Deucher, known for his contributions to the company’s open-source projects, has been actively engaged in discussions regarding this issue for the past two years. Unfortunately, Deucher recently announced that the HDMI Forum has rejected their proposal for an open-source HDMI 2.1 implementation.
Deucher had previously mentioned working with AMD’s legal team to navigate the requirements set by the HDMI Forum. Despite making progress on the basic functionality, the legal review process continued through the summer and fall of 2023. Ultimately, the HDMI Forum decided against allowing an open-source implementation of the HDMI 2.1 specification.
The membership fee for the HDMI Forum starts at $15,000, and while AMD is a member, this does not necessarily grant them the ability to offer a public implementation of the specification. The specifics of the member agreement and any related addendums are not publicly available, making it challenging for open-source projects like AMD’s to comply with the Forum’s requirements.
Speculations have arisen regarding potential concerns from media companies regarding digital video piracy, though concrete details are lacking. Despite this setback, Linux users seeking optimal display output may still rely on DisplayPort as a viable alternative. It remains to be seen whether AMD will incorporate newer HDMI support into closed-source Linux drivers or recommend alternative solutions to their most demanding customers.
For further updates on this matter, Ars has reached out to the HDMI Forum, AMD, and Alex Deucher for additional comments. The ongoing developments in this situation underscore the complexities surrounding open-source implementations of industry standards like HDMI 2.1.
As the situation unfolds, it emphasizes the importance of understanding the intricacies of industry standards and the challenges faced by open-source projects in navigating legal requirements and industry regulations. Linux users and enthusiasts may need to explore alternative options for achieving high-resolution display capabilities, given the current limitations imposed by the HDMI Forum.
In conclusion, the evolving landscape of technology standards and open-source development underscores the need for collaboration and transparency within the industry. While challenges may arise, innovative solutions and alternative approaches can help overcome obstacles and drive progress in the ever-changing world of technology.
