AMD’s request to open source the HDMI driver to fix a bug: rudely rejected!

Of the two major video output standards today, DisplayPort is open and HDMI is closed, so closed that it doesn't even allow bug fixes via open source drivers.

As early as 3 years ago, the HDMI 2.1+ specification was found to have a bug under Linux that would cause 4K120 and 5K240 output errors.

AMD worked for months to fix the bug, but only with the help of an open source driver, and it required the approval of the HDMI Forum Association.

Since it is an open source driver, it will definitely expose some internal information of the HDMI specification, which cannot be allowed.

AMD engineer Alex Deucher revealed that the HDMI Association rejected AMD's request to fix the bug through an open source driver, and there is no longer a solution to this matter.

This means that HDMI 2.1+ cannot use any open source drivers.

A similar thing happened a few years ago when a GPU video acceleration feature that could break HDMI HDCP copyright protection was banned as a result.