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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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Is FreeSync over HDMI not supported in linux even for FreeSync compatible monitors? (discuss.tchncs.de)

submitted 4 weeks ago* (last edited 4 weeks ago) by [email protected] to c/[email protected]

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I recently made a post about my FreeSync certified monitor not supporting VRR over HDMI. I thought that there was VRR support over HDMI even for versions below 2.1 spec. Am I mistaken in my assumption¿? Has the HDMI forum prevented the implementation of FreeSync in the open source drivers¿?

Obligatory fuck the HDMI forum and the HDMI spec.

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[–] [email protected] 2 points 4 weeks ago

Apparently so it does, and it says "HDMI Freesync" rather than "HDMI [2.1] VRR". FreeSync HDMI is a completely different protocol and is supposed to work under Linux. Found a thread here, can you try cat /sys/kernel/debug/dri/0/HDMI-A-1/vrr_range and edid-decode < /sys/class/drm/card0-HDMI-A-1/edid? Though there is no solution there.