--- title: Linux To Avoid Confusing Processor Firmware With Newer... description: A patch for the Linux Intel P-State CPU frequency scaling driver is pending to fix an issue where setting the desired performance level in MSR_HWP_REQUEST can... canonical: https://daily.dev/posts/linux-to-avoid-confusing-processor-firmware-with-newer-intel-cpus-sporting-dec-jmhbvddwq twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Linux To Avoid Confusing Processor Firmware With Newer Intel CPUs Sporting DEC | daily.dev og:description: A patch for the Linux Intel P-State CPU frequency scaling driver is pending to fix an issue where setting the desired performance level in MSR_HWP_REQUEST can... og:url: https://daily.dev/posts/linux-to-avoid-confusing-processor-firmware-with-newer-intel-cpus-sporting-dec-jmhbvddwq og:image: https://api.daily.dev/og/posts/jMHBvddwQ.png og:image:alt: Linux To Avoid Confusing Processor Firmware With Newer Intel CPUs Sporting DEC 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. # Linux To Avoid Confusing Processor Firmware With Newer Intel CPUs Sporting DEC **[Phoronix](https://daily.dev/sources/phoronix)** · 2 min read · 0 upvotes · 0 comments ## Summary A patch for the Linux Intel P-State CPU frequency scaling driver is pending to fix an issue where setting the desired performance level in MSR_HWP_REQUEST can confuse processor firmware on platforms with Dynamic Efficiency Control (DEC) enabled, such as Intel Core Ultra Series 3 'Panther Lake'. The fix makes intel_pstate always set the desired performance level to zero (meaning 'no preference') when DEC is active, letting the processor firmware determine the optimal performance level on its own. The patch is on the mailing list and may land in the Linux v7.3 merge window. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Linux 7.2 Will Fix The Intel P-State Driver For The New Bartlett Lake CPUs](https://daily.dev/posts/linux-7-2-will-fix-the-intel-p-state-driver-for-the-new-bartlett-lake-cpus-k2203n5ox) · Phoronix · 1 upvotes · 0 comments - [Linux 7.1 Merges AMD Dynamic EPP Fixes, Intel Bartlett Lake Scaling Fix](https://daily.dev/posts/linux-7-1-merges-amd-dynamic-epp-fixes-intel-bartlett-lake-scaling-fix-qgfgq1nz2) · Phoronix · 0 upvotes · 0 comments - [Linux gaming's stuttering problem isn't Proton and a new kernel patch could reveal what it actually is](https://daily.dev/posts/linux-gaming-s-stuttering-problem-isn-t-proton-and-a-new-kernel-patch-could-reveal-what-it-actually--reghq0gnb) · XDA Developers · 0 upvotes · 0 comments - [Linux Erroneously Thinks Intel Bartlett Lake CPUs Run At 7GHz](https://daily.dev/posts/linux-erroneously-thinks-intel-bartlett-lake-cpus-run-at-7ghz-a7gwx5jye) · Phoronix · 1 upvotes · 0 comments --- Tags: [#linux](https://daily.dev/tags/linux), [#intel](https://daily.dev/tags/intel) [View this post on daily.dev](https://daily.dev/posts/linux-to-avoid-confusing-processor-firmware-with-newer-intel-cpus-sporting-dec-jmhbvddwq) ```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":"Linux To Avoid Confusing Processor Firmware With Newer Intel CPUs Sporting DEC","url":"https://daily.dev/posts/linux-to-avoid-confusing-processor-firmware-with-newer-intel-cpus-sporting-dec-jmhbvddwq","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/linux-to-avoid-confusing-processor-firmware-with-newer-intel-cpus-sporting-dec-jmhbvddwq"},"datePublished":"2026-08-05T12:49:27.872Z","dateModified":"2026-08-05T12:49:52.762Z","description":"A patch for the Linux Intel P-State CPU frequency scaling driver is pending to fix an issue where setting the desired performance level in MSR_HWP_REQUEST can...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/dd62192b40ba92f1fa4555ad838c3602?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/dd62192b40ba92f1fa4555ad838c3602?_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/linux-to-avoid-confusing-processor-firmware-with-newer-intel-cpus-sporting-dec-jmhbvddwq","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"linux,intel","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":"Linux To Avoid Confusing Processor Firmware With Newer Intel CPUs Sporting DEC"}]} ```