--- title: AMDGPU HDMI 2.1 FRL To Be Initially Disabled-By-Default description: The sixth iteration of HDMI 2.1 FRL (Fixed Rate Link) patches for the open-source AMDGPU Linux kernel driver has been posted to the mailing list. A key change... canonical: https://daily.dev/posts/amdgpu-hdmi-2-1-frl-to-be-initially-disabled-by-default-0t37h0z2f twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: AMDGPU HDMI 2.1 FRL To Be Initially Disabled-By-Default | daily.dev og:description: The sixth iteration of HDMI 2.1 FRL (Fixed Rate Link) patches for the open-source AMDGPU Linux kernel driver has been posted to the mailing list. A key change... og:url: https://daily.dev/posts/amdgpu-hdmi-2-1-frl-to-be-initially-disabled-by-default-0t37h0z2f og:image: https://api.daily.dev/og/posts/0T37h0z2f.png og:image:alt: AMDGPU HDMI 2.1 FRL To Be Initially Disabled-By-Default og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # AMDGPU HDMI 2.1 FRL To Be Initially Disabled-By-Default **[Phoronix](https://daily.dev/sources/phoronix)** · 2 min read · 0 upvotes · 0 comments ## Summary The sixth iteration of HDMI 2.1 FRL (Fixed Rate Link) patches for the open-source AMDGPU Linux kernel driver has been posted to the mailing list. A key change in this revision is that FRL support will be disabled by default initially. Users who want to enable it must boot with the kernel parameter `amdgpu.dc_feature_mask=0x400`. The reason for the default-off decision is that Variable Refresh Rate (VRR) support is not yet in place — enabling FRL without VRR could be a regression for users with FRL-capable displays. Once HDMI VRR support lands, FRL is planned to be enabled by default. The patches also include Display Stream Compression (DSC) support and a few bug fixes, with hopes of landing in the Linux v7.2 cycle. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [AMD Preparing To Enable HDMI 2.1 FRL Support By Default For Linux](https://daily.dev/posts/amd-preparing-to-enable-hdmi-2-1-frl-support-by-default-for-linux-wlnuahrke) · Phoronix · 0 upvotes · 0 comments - [Patches Ready For AMDGPU HDMI 2.1 Enabled By Default With Linux 7.4 With FreeSync, VRR & ALLM](https://daily.dev/posts/patches-ready-for-amdgpu-hdmi-2-1-enabled-by-default-with-linux-7-4-with-freesync-vrr-allm-sunykdtwr) · Phoronix · 0 upvotes · 0 comments - [AMD Submits Its Long-Awaited HDMI 2.1 FRL Support For Linux 7.2 AMDGPU](https://daily.dev/posts/amd-submits-its-long-awaited-hdmi-2-1-frl-support-for-linux-7-2-amdgpu-ikuzwydyj) · Phoronix · 1 upvotes · 1 comments --- Tags: [#gpu](https://daily.dev/tags/gpu), [#linux](https://daily.dev/tags/linux), [#open-source](https://daily.dev/tags/open-source) [View this post on daily.dev](https://daily.dev/posts/amdgpu-hdmi-2-1-frl-to-be-initially-disabled-by-default-0t37h0z2f) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"AMDGPU HDMI 2.1 FRL To Be Initially Disabled-By-Default","url":"https://daily.dev/posts/amdgpu-hdmi-2-1-frl-to-be-initially-disabled-by-default-0t37h0z2f","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/amdgpu-hdmi-2-1-frl-to-be-initially-disabled-by-default-0t37h0z2f"},"datePublished":"2026-05-20T21:42:38.879Z","dateModified":"2026-10-15T02:25:11.260Z","description":"The sixth iteration of HDMI 2.1 FRL (Fixed Rate Link) patches for the open-source AMDGPU Linux kernel driver has been posted to the mailing list. 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