# Patches Ready For AMDGPU HDMI 2.1 Enabled By Default With Linux 7.4 With FreeSync, VRR & ALLM

DevFeed: [Patches Ready For AMDGPU HDMI 2.1 Enabled By Default With Linux 7.4 With FreeSync, VRR & ALLM](<https://devfeed.tech/articles/patches-ready-for-amdgpu-hdmi-2-1-enabled-by-default-with-linux-7-4-with-freesync-vrr-allm-12416.md>)

Original publisher: [Read original article](<https://www.phoronix.com/news/Linux-7.4-AMDGPU-HDMI-2.1-Go>)

Author: Michael Larabel

Published: 2026-09-11T10:39:00Z

Content type: news

Language: en

Sources: [Phoronix](<https://devfeed.tech/sources/phoronix.md>)

Topics: [hdmi](<https://devfeed.tech/topics/hdmi.md>), [Linux](<https://devfeed.tech/topics/linux.md>), [Low Latency](<https://devfeed.tech/topics/low-latency.md>), [Code](<https://devfeed.tech/topics/code.md>)

Tags: [code](<https://devfeed.tech/tags/code.md>), [desktop-linux](<https://devfeed.tech/tags/desktop-linux.md>), [driver](<https://devfeed.tech/tags/driver.md>), [gaming](<https://devfeed.tech/tags/gaming.md>), [graphics](<https://devfeed.tech/tags/graphics.md>), [hdmi](<https://devfeed.tech/tags/hdmi.md>), [kernel](<https://devfeed.tech/tags/kernel.md>), [latency](<https://devfeed.tech/tags/latency.md>), [linux](<https://devfeed.tech/tags/linux.md>), [linux-benchmarking](<https://devfeed.tech/tags/linux-benchmarking.md>), [linux-hardware-benchmarks](<https://devfeed.tech/tags/linux-hardware-benchmarks.md>), [linux-hardware-reviews](<https://devfeed.tech/tags/linux-hardware-reviews.md>), [linux-how-to](<https://devfeed.tech/tags/linux-how-to.md>), [linux-performance](<https://devfeed.tech/tags/linux-performance.md>), [linux-server-benchmarks](<https://devfeed.tech/tags/linux-server-benchmarks.md>), [low-latency](<https://devfeed.tech/tags/low-latency.md>), [open](<https://devfeed.tech/tags/open.md>), [open-source-graphics](<https://devfeed.tech/tags/open-source-graphics.md>), [phoronix](<https://devfeed.tech/tags/phoronix.md>), [phoronix-test-suite](<https://devfeed.tech/tags/phoronix-test-suite.md>), [release](<https://devfeed.tech/tags/release.md>), [ubuntu-benchmarks](<https://devfeed.tech/tags/ubuntu-benchmarks.md>), [ubuntu-hardware](<https://devfeed.tech/tags/ubuntu-hardware.md>), [updates](<https://devfeed.tech/tags/updates.md>)

## AI overview

The article reports that most AMDGPU HDMI 2.1 support is expected to merge for Linux 7.4 and be enabled by default. The work includes FreeSync, VRR, ALLM, and HDMI FRL support, along with updates to AMD graphics and display engines.

## Source excerpt

Linux 7.4 is now set to reach the elusive milestone of HDMI 2.1 support for the AMDGPU kernel graphics driver. After the HDMI Forum previously rejected HDMI 2.1 for the AMDGPU open-source driver implementation going back years, earlier this year something changed -- widely speculated to be with Valve's involvement -- that HDMI 2.1 patches began appearing for the AMDGPU driver. With the upcoming Linux 7.4 cycle, the bulk of that work will now be in place and enabled by default...