--- title: AMD Preps HDMI FRL Fixes, New Knob For Disabling Older... description: AMD engineers have posted 34 AMDGPU DC display driver patches to the amd-gfx mailing list, targeting HDMI FRL (Fixed Rate Link) fixes for their HDMI 2.1... canonical: https://daily.dev/posts/amd-preps-hdmi-frl-fixes-new-knob-for-disabling-older-amd-gpu-dce-display-support-ki49po99n twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: AMD Preps HDMI FRL Fixes, New Knob For Disabling Older AMD GPU DCE Display Support | daily.dev og:description: AMD engineers have posted 34 AMDGPU DC display driver patches to the amd-gfx mailing list, targeting HDMI FRL (Fixed Rate Link) fixes for their HDMI 2.1... og:url: https://daily.dev/posts/amd-preps-hdmi-frl-fixes-new-knob-for-disabling-older-amd-gpu-dce-display-support-ki49po99n og:image: https://api.daily.dev/og/posts/ki49PO99N.png og:image:alt: AMD Preps HDMI FRL Fixes, New Knob For Disabling Older AMD GPU DCE Display Support 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. # AMD Preps HDMI FRL Fixes, New Knob For Disabling Older AMD GPU DCE Display Support **[Phoronix](https://daily.dev/sources/phoronix)** · 2 min read · 0 upvotes · 0 comments ## Summary AMD engineers have posted 34 AMDGPU DC display driver patches to the amd-gfx mailing list, targeting HDMI FRL (Fixed Rate Link) fixes for their HDMI 2.1 implementation. Key changes include fixes for FRL cap restoration on non-destructive HDMI link verify handling and updates to FRL link training timeout behavior. The patches also introduce a new CONFIG_DRM_AMD_DC_DCE Kconfig option that gates legacy Display Core Engine (DCE) support behind a compile-time flag, allowing DCN-only driver builds while keeping DCE enabled by default. Additionally, KUnit test coverage for display driver code paths continues to expand. These patches are expected to land in the Linux v7.4 kernel cycle later in the year. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [AMD Sends Out New Linux Patches Further Enhancing HDMI 2.1 Reliability](https://daily.dev/posts/amd-sends-out-new-linux-patches-further-enhancing-hdmi-2-1-reliability-eilor9o3c) · Phoronix · 0 upvotes · 0 comments - [AMDGPU HDMI 2.1 FRL To Be Initially Disabled-By-Default](https://daily.dev/posts/amdgpu-hdmi-2-1-frl-to-be-initially-disabled-by-default-0t37h0z2f) · Phoronix · 0 upvotes · 0 comments - [AMD Sends In More HDMI FRL Updates For Linux 7.4, Fixes For Upcoming Hardware](https://daily.dev/posts/amd-sends-in-more-hdmi-frl-updates-for-linux-7-4-fixes-for-upcoming-hardware-qmm5bjuok) · Phoronix · 0 upvotes · 0 comments --- Tags: [#linux](https://daily.dev/tags/linux), [#gpu](https://daily.dev/tags/gpu) [View this post on daily.dev](https://daily.dev/posts/amd-preps-hdmi-frl-fixes-new-knob-for-disabling-older-amd-gpu-dce-display-support-ki49po99n) ```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":"AMD Preps HDMI FRL Fixes, New Knob For Disabling Older AMD GPU DCE Display Support","url":"https://daily.dev/posts/amd-preps-hdmi-frl-fixes-new-knob-for-disabling-older-amd-gpu-dce-display-support-ki49po99n","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/amd-preps-hdmi-frl-fixes-new-knob-for-disabling-older-amd-gpu-dce-display-support-ki49po99n"},"datePublished":"2026-08-05T10:24:30.757Z","dateModified":"2026-08-05T10:24:57.086Z","description":"AMD engineers have posted 34 AMDGPU DC display driver patches to the amd-gfx mailing list, targeting HDMI FRL (Fixed Rate Link) fixes for their HDMI 2.1...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/9796873145ce531bf38d5b5d5ed3ee08?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/9796873145ce531bf38d5b5d5ed3ee08?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Phoronix","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Phoronix","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/6a26ba379dd64932830aa0c9803dd7ee","url":"https://daily.dev/sources/phoronix"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/amd-preps-hdmi-frl-fixes-new-knob-for-disabling-older-amd-gpu-dce-display-support-ki49po99n","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"linux,gpu","timeRequired":"PT2M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Phoronix","item":"https://daily.dev/sources/phoronix"},{"@type":"ListItem","position":3,"name":"AMD Preps HDMI FRL Fixes, New Knob For Disabling Older AMD GPU DCE Display Support"}]} ```