{"id":6713,"date":"2025-09-02T08:19:37","date_gmt":"2025-09-02T08:19:37","guid":{"rendered":"https:\/\/unitconversion.io\/blog\/?p=6713"},"modified":"2025-09-02T08:21:06","modified_gmt":"2025-09-02T08:21:06","slug":"brightness-function-key-not-working-how-to-restore-brightness-on-laptop","status":"publish","type":"post","link":"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/","title":{"rendered":"Brightness Function Key Not Working? How to Restore Brightness on Laptop"},"content":{"rendered":"<p>You&#8217;re in a dark room. Your screen is too bright. You press the brightness down key\u2026 and nothing happens. Uh-oh. Don\u2019t worry \u2014 it\u2019s a common problem and we\u2019re going to solve it together. This guide is for any laptop user whose <em>brightness function key isn\u2019t working<\/em>. Whether you&#8217;re using Windows, macOS, or even Linux \u2014 we&#8217;ve got tips and tricks to bring back your glow control.<\/p>\n<h2>Why Did the Brightness Key Stop Working?<\/h2>\n<p>Before we jump into fixes, let\u2019s quickly figure out what might be causing the issue.<\/p>\n<ul>\n<li><strong>Driver issues<\/strong> \u2013 Your display or keyboard drivers might be outdated or corrupted.<\/li>\n<li><strong>Disabled services<\/strong> \u2013 Some Windows services control brightness settings.<\/li>\n<li><strong>Function key lock<\/strong> \u2013 Some laptops have a setting that disables the function keys.<\/li>\n<li><strong>Broken keyboard<\/strong> \u2013 That specific key might actually be busted.<\/li>\n<\/ul>\n<p>Let\u2019s fix it! \ud83d\udd27<\/p>\n<h2>Method 1: Use the Brightness Slider<\/h2>\n<p>This is the easiest workaround!<\/p>\n<p>On Windows:<\/p>\n<ol>\n<li>Click the <strong>Start<\/strong> menu.<\/li>\n<li>Go to <strong>Settings<\/strong> &gt; <strong>System<\/strong> &gt; <strong>Display<\/strong>.<\/li>\n<li>Under \u201cBrightness and Color,\u201d drag the <strong>Change brightness<\/strong> slider left or right.<\/li>\n<\/ol>\n<p><em>Still can&#8217;t move the slider?<\/em> Time for some deeper digging.<\/p>\n<h2>Method 2: Update Your Display Drivers<\/h2>\n<p>Corrupt or outdated drivers are a common culprit.<\/p>\n<ol>\n<li>Right-click the <strong>Start<\/strong> menu.<\/li>\n<li>Select <strong>Device Manager<\/strong>.<\/li>\n<li>Expand the <strong>Display adapters<\/strong> section.<\/li>\n<li>Right-click your graphics driver and choose <strong>Update driver<\/strong>.<\/li>\n<li>Select <strong>Search automatically for drivers<\/strong>.<\/li>\n<\/ol>\n<p>If that doesn&#8217;t work, try downloading the latest driver from the laptop manufacturer&#8217;s website.<\/p>\n<img loading=\"lazy\" decoding=\"async\" width=\"1080\" height=\"720\" src=\"https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2026\/03\/graphs-of-performance-analytics-on-a-laptop-screen-phone-scanning-qr-code-analytics-dashboard-colorful-charts-2.jpg\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2026\/03\/graphs-of-performance-analytics-on-a-laptop-screen-phone-scanning-qr-code-analytics-dashboard-colorful-charts-2.jpg 1080w, https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2026\/03\/graphs-of-performance-analytics-on-a-laptop-screen-phone-scanning-qr-code-analytics-dashboard-colorful-charts-2-300x200.jpg 300w, https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2026\/03\/graphs-of-performance-analytics-on-a-laptop-screen-phone-scanning-qr-code-analytics-dashboard-colorful-charts-2-1024x683.jpg 1024w, https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2026\/03\/graphs-of-performance-analytics-on-a-laptop-screen-phone-scanning-qr-code-analytics-dashboard-colorful-charts-2-768x512.jpg 768w\" sizes=\"(max-width: 1080px) 100vw, 1080px\" \/>\n<h2>Method 3: Check the Keyboard Driver<\/h2>\n<p>If the brightness key isn\u2019t working, maybe the keyboard driver is misbehaving.<\/p>\n<ol>\n<li>Open <strong>Device Manager<\/strong>.<\/li>\n<li>Go to <strong>Keyboards<\/strong>.<\/li>\n<li>Right-click your keyboard and select <strong>Update driver<\/strong>.<\/li>\n<\/ol>\n<p><em>Still nothing?<\/em> You can also uninstall it, then restart your computer \u2014 Windows will reinstall it on boot.<\/p>\n<h2>Method 4: Use Software Control Tools<\/h2>\n<p>Third-party apps can give you fine-tuned control over brightness. They work even if your keys don\u2019t!<\/p>\n<ul>\n<li><strong>f.lux<\/strong> \u2013 Adjusts screen brightness automatically based on time of day.<\/li>\n<li><strong>Windows Brightness Slider<\/strong> \u2013 A simple tray icon with a brightness slider.<\/li>\n<li><strong>Iris<\/strong> \u2013 Offers health-focused lighting and brightness features.<\/li>\n<\/ul>\n<p>Install one of these and keep your eyes comfy.<\/p>\n<h2>Method 5: Check Windows Mobility Center<\/h2>\n<p>This tool gives you quick access to brightness settings.<\/p>\n<ol>\n<li>Right-click the battery icon in the system tray.<\/li>\n<li>Select <strong>Windows Mobility Center<\/strong>.<\/li>\n<li>Use the brightness slider inside the window.<\/li>\n<\/ol>\n<p><em>Tip:<\/em> If the brightness option is grayed out, it might mean Windows can\u2019t detect your display properly.<\/p>\n<h2>Method 6: Tweak Your Power Plan Settings<\/h2>\n<p>Some power plans adjust brightness automatically\u2014or disable brightness control!<\/p>\n<ol>\n<li>Open <strong>Control Panel<\/strong>.<\/li>\n<li>Click <strong>Hardware and Sound<\/strong>.<\/li>\n<li>Select <strong>Power Options<\/strong>.<\/li>\n<li>Next to your active plan, click <strong>Change plan settings<\/strong>.<\/li>\n<li>Edit brightness behavior under &#8220;On battery&#8221; or &#8220;Plugged in&#8221;.<\/li>\n<\/ol>\n<h2>Method 7: BIOS and Function Key Settings<\/h2>\n<p>Many laptops have a <strong>Function Lock<\/strong>. If it\u2019s turned on, the brightness shortcut won\u2019t work unless you also hold the <strong>Fn<\/strong> key every time.<\/p>\n<p>Try this sequence:<\/p>\n<ul>\n<li>Restart your laptop.<\/li>\n<li>Hit the BIOS access key. Usually <strong>F2<\/strong>, <strong>DEL<\/strong>, or <strong>ESC<\/strong>.<\/li>\n<li>Look for <strong>Function Key Behavior<\/strong> settings.<\/li>\n<li>Change it from <em>Multimedia<\/em> to <em>Function<\/em> (or the other way).<\/li>\n<\/ul>\n<img loading=\"lazy\" decoding=\"async\" width=\"1080\" height=\"608\" src=\"https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2025\/12\/a-laptop-computer-sitting-on-top-of-a-wooden-table-bios-settings-screen-fast-boot-usb-support-options.jpg\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2025\/12\/a-laptop-computer-sitting-on-top-of-a-wooden-table-bios-settings-screen-fast-boot-usb-support-options.jpg 1080w, https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2025\/12\/a-laptop-computer-sitting-on-top-of-a-wooden-table-bios-settings-screen-fast-boot-usb-support-options-300x169.jpg 300w, https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2025\/12\/a-laptop-computer-sitting-on-top-of-a-wooden-table-bios-settings-screen-fast-boot-usb-support-options-1024x576.jpg 1024w, https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2025\/12\/a-laptop-computer-sitting-on-top-of-a-wooden-table-bios-settings-screen-fast-boot-usb-support-options-768x432.jpg 768w\" sizes=\"(max-width: 1080px) 100vw, 1080px\" \/>\n<h2>Method 8: Roll Back or Reinstall Windows Updates<\/h2>\n<p>Sometimes, a recent update is the troublemaker. If brightness stopped working after an update, consider rolling it back.<\/p>\n<ol>\n<li>Open <strong>Settings<\/strong>.<\/li>\n<li>Go to <strong>Update &amp; Security<\/strong> &gt; <strong>Windows Update<\/strong>.<\/li>\n<li>Click <strong>View update history<\/strong>.<\/li>\n<li>Select <strong>Uninstall updates<\/strong>.<\/li>\n<li>Choose the one causing issues and uninstall it.<\/li>\n<\/ol>\n<p><em>Warning:<\/em> Only do this if you\u2019re sure the update is the cause.<\/p>\n<h2>Still Not Working?<\/h2>\n<p>If all else fails, here are some last ideas:<\/p>\n<ul>\n<li><strong>External keyboard<\/strong> \u2013 Plug one in and test the brightness keys there.<\/li>\n<li><strong>Hardware test<\/strong> \u2013 Your laptop might have a built-in diagnostic tool.<\/li>\n<li><strong>Factory reset<\/strong> \u2013 As a last resort, reset the system (don\u2019t forget to back up!).<\/li>\n<\/ul>\n<h2>For Mac Users \ud83c\udf4f<\/h2>\n<p>If you&#8217;re on a Mac and brightness keys aren&#8217;t working:<\/p>\n<ol>\n<li>Click the <strong>Apple<\/strong> menu &gt; <strong>System Settings<\/strong>.<\/li>\n<li>Choose <strong>Displays<\/strong>.<\/li>\n<li>Uncheck <strong>Automatically adjust brightness<\/strong> and try adjusting manually.<\/li>\n<li>Restart your Mac.<\/li>\n<\/ol>\n<p>If that doesn\u2019t help, try resetting NVRAM:<\/p>\n<ul>\n<li>Shut down the Mac.<\/li>\n<li>Turn it on and immediately press and hold: <strong>Option + Command + P + R<\/strong>.<\/li>\n<li>Hold for about 20 seconds, then release.<\/li>\n<\/ul>\n<img loading=\"lazy\" decoding=\"async\" width=\"1080\" height=\"718\" src=\"https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2026\/04\/macbook-screen-shows-macos-software-update-downloading-laptop-account-dashboard-subscription-settings-screen.jpg\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2026\/04\/macbook-screen-shows-macos-software-update-downloading-laptop-account-dashboard-subscription-settings-screen.jpg 1080w, https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2026\/04\/macbook-screen-shows-macos-software-update-downloading-laptop-account-dashboard-subscription-settings-screen-300x199.jpg 300w, https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2026\/04\/macbook-screen-shows-macos-software-update-downloading-laptop-account-dashboard-subscription-settings-screen-1024x681.jpg 1024w, https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2026\/04\/macbook-screen-shows-macos-software-update-downloading-laptop-account-dashboard-subscription-settings-screen-768x511.jpg 768w\" sizes=\"(max-width: 1080px) 100vw, 1080px\" \/>\n<h2>Keep It Bright, Keep It Right<\/h2>\n<p>Brightness control is a vital feature \u2014 not just for comfort but for battery life too! If your function key isn\u2019t working, one of these fixes will <em>surely<\/em> get it back in shape. Most cases are driver-related, so updating your display and keyboard software is usually the golden ticket. If not, there are plenty of nifty workarounds and tools to help.<\/p>\n<p>So go ahead \u2014 tweak that screen until it\u2019s just right. Your eyes will thank you. \ud83d\ude0e<\/p>\n","protected":false},"excerpt":{"rendered":"<p>You&#8217;re in a dark room. Your screen is too bright. You press the brightness down key\u2026 and nothing happens. Uh-oh. Don\u2019t worry \u2014 it\u2019s a common problem and we\u2019re going to solve it together. This guide is for any laptop user whose <em>brightness function key isn\u2019t working<\/em>. Whether you&#8217;re using Windows, macOS, or even Linux \u2014 we&#8217;ve got tips and tricks to bring back your glow control. <a href=\"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/\" class=\"read-more\">Read more<\/a><\/p>\n","protected":false},"author":79,"featured_media":6156,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[665],"tags":[],"class_list":["post-6713","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Brightness Function Key Not Working? How to Restore Brightness on Laptop - Unit Conversion Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Brightness Function Key Not Working? How to Restore Brightness on Laptop - Unit Conversion Blog\" \/>\n<meta property=\"og:description\" content=\"You&#8217;re in a dark room. Your screen is too bright. You press the brightness down key\u2026 and nothing happens. Uh-oh. Don\u2019t worry \u2014 it\u2019s a common problem and we\u2019re going to solve it together. This guide is for any laptop user whose brightness function key isn\u2019t working. Whether you&#8217;re using Windows, macOS, or even Linux \u2014 we&#8217;ve got tips and tricks to bring back your glow control. Read more\" \/>\n<meta property=\"og:url\" content=\"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/\" \/>\n<meta property=\"og:site_name\" content=\"Unit Conversion Blog\" \/>\n<meta property=\"article:published_time\" content=\"2025-09-02T08:19:37+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-09-02T08:21:06+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2025\/02\/graphs-of-performance-analytics-on-a-laptop-screen-salesforce-dashboard-real-estate-crm-interface.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1080\" \/>\n\t<meta property=\"og:image:height\" content=\"720\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Olivia Brown\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Olivia Brown\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/\"},\"author\":{\"name\":\"Olivia Brown\",\"@id\":\"https:\/\/unitconversion.io\/blog\/#\/schema\/person\/4ea06b340c4660f4a04bd6d58c582b69\"},\"headline\":\"Brightness Function Key Not Working? How to Restore Brightness on Laptop\",\"datePublished\":\"2025-09-02T08:19:37+00:00\",\"dateModified\":\"2025-09-02T08:21:06+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/\"},\"wordCount\":799,\"publisher\":{\"@id\":\"https:\/\/unitconversion.io\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2025\/02\/graphs-of-performance-analytics-on-a-laptop-screen-salesforce-dashboard-real-estate-crm-interface.jpg\",\"articleSection\":[\"Blog\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/\",\"url\":\"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/\",\"name\":\"Brightness Function Key Not Working? How to Restore Brightness on Laptop - Unit Conversion Blog\",\"isPartOf\":{\"@id\":\"https:\/\/unitconversion.io\/blog\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2025\/02\/graphs-of-performance-analytics-on-a-laptop-screen-salesforce-dashboard-real-estate-crm-interface.jpg\",\"datePublished\":\"2025-09-02T08:19:37+00:00\",\"dateModified\":\"2025-09-02T08:21:06+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/#primaryimage\",\"url\":\"https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2025\/02\/graphs-of-performance-analytics-on-a-laptop-screen-salesforce-dashboard-real-estate-crm-interface.jpg\",\"contentUrl\":\"https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2025\/02\/graphs-of-performance-analytics-on-a-laptop-screen-salesforce-dashboard-real-estate-crm-interface.jpg\",\"width\":1080,\"height\":720},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/unitconversion.io\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Brightness Function Key Not Working? How to Restore Brightness on Laptop\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/unitconversion.io\/blog\/#website\",\"url\":\"https:\/\/unitconversion.io\/blog\/\",\"name\":\"Unit Conversion Blog\",\"description\":\"On conversion and other things :)\",\"publisher\":{\"@id\":\"https:\/\/unitconversion.io\/blog\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/unitconversion.io\/blog\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/unitconversion.io\/blog\/#organization\",\"name\":\"Unit Conversion Blog\",\"url\":\"https:\/\/unitconversion.io\/blog\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/unitconversion.io\/blog\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2021\/01\/uclogo.png\",\"contentUrl\":\"https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2021\/01\/uclogo.png\",\"width\":500,\"height\":500,\"caption\":\"Unit Conversion Blog\"},\"image\":{\"@id\":\"https:\/\/unitconversion.io\/blog\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/unitconversion.io\/blog\/#\/schema\/person\/4ea06b340c4660f4a04bd6d58c582b69\",\"name\":\"Olivia Brown\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/unitconversion.io\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/441e8f5d29c2bd1022936f38e27eee93?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/441e8f5d29c2bd1022936f38e27eee93?s=96&d=mm&r=g\",\"caption\":\"Olivia Brown\"},\"description\":\"I'm Olivia Brown, a tech enthusiast and freelance writer. My focus is on web development and digital tools, and I enjoy making complex tech topics easier to understand.\",\"url\":\"https:\/\/unitconversion.io\/blog\/author\/olivia\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Brightness Function Key Not Working? How to Restore Brightness on Laptop - Unit Conversion Blog","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/","og_locale":"en_US","og_type":"article","og_title":"Brightness Function Key Not Working? How to Restore Brightness on Laptop - Unit Conversion Blog","og_description":"You&#8217;re in a dark room. Your screen is too bright. You press the brightness down key\u2026 and nothing happens. Uh-oh. Don\u2019t worry \u2014 it\u2019s a common problem and we\u2019re going to solve it together. This guide is for any laptop user whose brightness function key isn\u2019t working. Whether you&#8217;re using Windows, macOS, or even Linux \u2014 we&#8217;ve got tips and tricks to bring back your glow control. Read more","og_url":"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/","og_site_name":"Unit Conversion Blog","article_published_time":"2025-09-02T08:19:37+00:00","article_modified_time":"2025-09-02T08:21:06+00:00","og_image":[{"width":1080,"height":720,"url":"https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2025\/02\/graphs-of-performance-analytics-on-a-laptop-screen-salesforce-dashboard-real-estate-crm-interface.jpg","type":"image\/jpeg"}],"author":"Olivia Brown","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Olivia Brown","Est. reading time":"4 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/#article","isPartOf":{"@id":"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/"},"author":{"name":"Olivia Brown","@id":"https:\/\/unitconversion.io\/blog\/#\/schema\/person\/4ea06b340c4660f4a04bd6d58c582b69"},"headline":"Brightness Function Key Not Working? How to Restore Brightness on Laptop","datePublished":"2025-09-02T08:19:37+00:00","dateModified":"2025-09-02T08:21:06+00:00","mainEntityOfPage":{"@id":"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/"},"wordCount":799,"publisher":{"@id":"https:\/\/unitconversion.io\/blog\/#organization"},"image":{"@id":"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/#primaryimage"},"thumbnailUrl":"https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2025\/02\/graphs-of-performance-analytics-on-a-laptop-screen-salesforce-dashboard-real-estate-crm-interface.jpg","articleSection":["Blog"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/","url":"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/","name":"Brightness Function Key Not Working? How to Restore Brightness on Laptop - Unit Conversion Blog","isPartOf":{"@id":"https:\/\/unitconversion.io\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/#primaryimage"},"image":{"@id":"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/#primaryimage"},"thumbnailUrl":"https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2025\/02\/graphs-of-performance-analytics-on-a-laptop-screen-salesforce-dashboard-real-estate-crm-interface.jpg","datePublished":"2025-09-02T08:19:37+00:00","dateModified":"2025-09-02T08:21:06+00:00","breadcrumb":{"@id":"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/#primaryimage","url":"https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2025\/02\/graphs-of-performance-analytics-on-a-laptop-screen-salesforce-dashboard-real-estate-crm-interface.jpg","contentUrl":"https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2025\/02\/graphs-of-performance-analytics-on-a-laptop-screen-salesforce-dashboard-real-estate-crm-interface.jpg","width":1080,"height":720},{"@type":"BreadcrumbList","@id":"https:\/\/unitconversion.io\/blog\/brightness-function-key-not-working-how-to-restore-brightness-on-laptop\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/unitconversion.io\/blog\/"},{"@type":"ListItem","position":2,"name":"Brightness Function Key Not Working? How to Restore Brightness on Laptop"}]},{"@type":"WebSite","@id":"https:\/\/unitconversion.io\/blog\/#website","url":"https:\/\/unitconversion.io\/blog\/","name":"Unit Conversion Blog","description":"On conversion and other things :)","publisher":{"@id":"https:\/\/unitconversion.io\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/unitconversion.io\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/unitconversion.io\/blog\/#organization","name":"Unit Conversion Blog","url":"https:\/\/unitconversion.io\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/unitconversion.io\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2021\/01\/uclogo.png","contentUrl":"https:\/\/unitconversion.io\/blog\/wp-content\/uploads\/2021\/01\/uclogo.png","width":500,"height":500,"caption":"Unit Conversion Blog"},"image":{"@id":"https:\/\/unitconversion.io\/blog\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/unitconversion.io\/blog\/#\/schema\/person\/4ea06b340c4660f4a04bd6d58c582b69","name":"Olivia Brown","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/unitconversion.io\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/441e8f5d29c2bd1022936f38e27eee93?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/441e8f5d29c2bd1022936f38e27eee93?s=96&d=mm&r=g","caption":"Olivia Brown"},"description":"I'm Olivia Brown, a tech enthusiast and freelance writer. My focus is on web development and digital tools, and I enjoy making complex tech topics easier to understand.","url":"https:\/\/unitconversion.io\/blog\/author\/olivia\/"}]}},"_links":{"self":[{"href":"https:\/\/unitconversion.io\/blog\/wp-json\/wp\/v2\/posts\/6713"}],"collection":[{"href":"https:\/\/unitconversion.io\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/unitconversion.io\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/unitconversion.io\/blog\/wp-json\/wp\/v2\/users\/79"}],"replies":[{"embeddable":true,"href":"https:\/\/unitconversion.io\/blog\/wp-json\/wp\/v2\/comments?post=6713"}],"version-history":[{"count":1,"href":"https:\/\/unitconversion.io\/blog\/wp-json\/wp\/v2\/posts\/6713\/revisions"}],"predecessor-version":[{"id":6740,"href":"https:\/\/unitconversion.io\/blog\/wp-json\/wp\/v2\/posts\/6713\/revisions\/6740"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/unitconversion.io\/blog\/wp-json\/wp\/v2\/media\/6156"}],"wp:attachment":[{"href":"https:\/\/unitconversion.io\/blog\/wp-json\/wp\/v2\/media?parent=6713"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/unitconversion.io\/blog\/wp-json\/wp\/v2\/categories?post=6713"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/unitconversion.io\/blog\/wp-json\/wp\/v2\/tags?post=6713"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}