How to Install KDE Plasma on Linux Mint 22 or 21
<p>KDE Plasma is one of the most powerful and customizable desktop environments available for Linux. If you’re looking for an alternative to the default <strong>Cinnamon</strong> desktop in Linux Mint, KDE Plasma offers a <strong>modern interface, enhanced efficiency, and deep customization options</strong>.</p>
<p>This guide will walk you through the steps to install KDE Plasma on <strong>Linux Mint 22 or 21</strong> using the command-line terminal. You’ll learn how to <strong>set up the necessary repositories, install the desktop environment, and switch to KDE Plasma seamlessly</strong>.</p>
<p>Whether you’re seeking a fresh look, improved workflow, or advanced features, KDE Plasma provides a flexible and user-friendly experience. Let’s get started.</p>
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<span class="lwptoc_item_label">Import KDE Backports PPA on Linux Mint 22 or 21</span>
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<span class="lwptoc_item_label">Install KDE Plasma on Linux Mint 22 or 21 via APT PPA</span>
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<span class="lwptoc_item_label">Configure SDDM on Linux Mint for KDE Plasma</span>
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<span class="lwptoc_item_label">Reboot your system after KDE installation</span>
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<span class="lwptoc_item_label">Log in to KDE Plasma Desktop on Linux Mint</span>
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<span class="lwptoc_item_label">Switch Default Display Managers on Linux Mint</span>
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<span class="lwptoc_item_label">Remove KDE Plasma from Linux Mint</span>
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<span class="lwptoc_item_label">Frequently Asked Questions (FAQs)</span>
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<span class="lwptoc_item_label">Useful Links for KDE Plasma with Linux Mint</span>
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</div></div><h2 class="wp-block-heading"><span id="Import_KDE_Backports_PPA_on_Linux_Mint_22_or_21">Import KDE Backports PPA on Linux Mint 22 or 21</span></h2>
<p>To install the latest version of <strong>KDE Plasma</strong> and its applications, you need to enable the <strong>KDE Backports PPA</strong>. This repository provides <strong>up-to-date KDE software</strong>, ensuring you get the newest features, performance improvements, and security updates.</p>
<p>Follow these steps to add the required PPA and prepare your system.</p>
<h3 class="wp-block-heading">Step 1: Update Your System</h3>
<p>Before adding new repositories, update your system to ensure you have the latest <strong>security patches</strong> and <strong>package versions</strong>. Open a terminal and run:</p>
<pre class="wp-block-code"><code class="language-bash" lang="bash">sudo apt update && sudo apt upgrade -y</code></pre>
<p>This command refreshes your package list and upgrades installed packages to their latest versions.</p>
<h3 class="wp-block-heading">Step 2: Add the KDE Backports PPA</h3>
<p>Next, add the official <strong>KDE Backports</strong> repository, which provides the latest Plasma desktop and related applications:</p>
<pre class="wp-block-code"><code class="language-bash" lang="bash">sudo add-apt-repository ppa:kubuntu-ppa/backports -y</code></pre>
<p>The <code>-y</code> flag <strong>automatically confirms</strong> the repository addition, streamlining the process.</p>
<h4 class="wp-block-heading">(Optional) Add the KDE Backports Extra PPA</h4>
<p>If you want a <strong>full KDE experience</strong> with additional applications and features, add the <strong>KDE Backports Extra</strong> PPA:</p>
<pre class="wp-block-code"><code class="language-bash" lang="bash">sudo add-apt-repository ppa:kubuntu-ppa/backports-extra -y</code></pre>
<p>This step is optional but recommended for users who want access to <strong>extra KDE components</strong>.</p>
<h3 class="wp-block-heading">Step 3: Update Package Lists</h3>
<p>After adding the repositories, update your system’s package index so it recognizes the new sources:</p>
<pre class="wp-block-code"><code class="language-bash" lang="bash">sudo apt update</code></pre>
<p>Once the update is complete, your system is ready to <strong>install KDE Plasma</strong>.
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<h2 class="wp-block-heading"><span id="Install_KDE_Plasma_on_Linux_Mint_22_or_21_via_APT_PPA">Install KDE Plasma on Linux Mint 22 or 21 via APT PPA</span></h2>
<p>This section walks you through installing the <strong>KDE Plasma</strong> desktop environment on <strong>Linux Mint 22 or 21</strong>. There are three installation options, each providing a different set of applications and features. Choose the one that best fits your needs.</p>
<h3 class="wp-block-heading">Install KDE Standard on Linux Mint</h3>
<p>The standard installation includes the <strong>KDE Plasma Desktop</strong> along with a balanced set of essential applications. This option is ideal for users who want a full KDE experience with core tools.</p>
<p>Run the following command in your terminal:</p>
<pre class="wp-block-code"><code class="language-bash" lang="bash">sudo apt install kde-standard</code></pre>
<p>This command installs <strong>KDE Plasma Desktop</strong> and a standard set of applications, providing essential KDE features and utilities.</p>
<h3 class="wp-block-heading">Install KDE Plasma Minimal on Linux Mint</h3>
<p>For a <strong>lighter KDE installation</strong>, you can install <strong>KDE Plasma Desktop</strong> with a minimal set of applications. This option is suitable for users who prefer a <strong>barebones KDE setup</strong> while keeping system resource usage low.</p>
<p>Run the following command:</p>
<pre class="wp-block-code"><code class="language-bash" lang="bash">sudo apt install kde-plasma-desktop</code></pre>
<p>This installs the KDE desktop environment without additional applications, allowing users to install only the software they need.</p>
<h3 class="wp-block-heading">Install KDE Plasma Full on Linux Mint</h3>
<p>For the most <strong>complete KDE experience</strong>, you can install <strong>KDE Plasma Full</strong>, which includes <strong>the full suite of KDE applications and tools</strong>.</p>
<p>Run the following command:</p>
<pre class="wp-block-code"><code class="language-bash" lang="bash">sudo apt install kde-full</code></pre>
<p>This installation provides all <strong>KDE applications, tools, and system utilities</strong>, ensuring you have access to the full KDE ecosystem.</p>
<h2 class="wp-block-heading"><span id="Configure_SDDM_on_Linux_Mint_for_KDE_Plasma">Configure SDDM on Linux Mint for KDE Plasma</span></h2>
<p>During installation, you may see a prompt asking you to configure the display manager. <strong>KDE Plasma works best with SDDM</strong>, which is recommended as the default display manager.</p>
<p>To proceed, <strong>press the TAB key</strong> to highlight <code><Ok></code>, then <strong>hit ENTER</strong>.</p>
<div class="wp-block-image">
<figure class="aligncenter size-full wp-lightbox-container" data-wp-context='{"imageId":"67b584a307b96"}' data-wp-interactive="core/image"><img alt="Terminal prompt in Linux Mint asking the user to choose SDDM as the default display manager during KDE Plasma installation." class="wp-image-68241" data-wp-class--hide="state.isContentHidden" data-wp-class--show="state.isContentVisible" data-wp-init="callbacks.setButtonStyles" data-wp-on-async--click="actions.showLightbox" data-wp-on-async--load="callbacks.setButtonStyles" data-wp-on-async-window--resize="callbacks.setButtonStyles" decoding="async" height="768" sizes="(max-width: 1024px) 100vw, 1024px" src="https://linuxcapable.com/wp-content/uploads/2025/02/sddm-display-manager-select-for-kde-desktop-on-linux-mint-from-prompt-in-terminal.png" srcset="https://linuxcapable.com/wp-content/uploads/2025/02/sddm-display-manager-select-for-kde-desktop-on-linux-mint-from-prompt-in-terminal.png 1024w, https://linuxcapable.com/wp-content/uploads/2025/02/sddm-display-manager-select-for-kde-desktop-on-linux-mint-from-prompt-in-terminal-300x225.png 300w, https://linuxcapable.com/wp-content/uploads/2025/02/sddm-display-manager-select-for-kde-desktop-on-linux-mint-from-prompt-in-terminal-768x576.png 768w" width="1024"/><button aria-haspopup="dialog" aria-label="Enlarge image: Terminal prompt in Linux Mint asking the user to choose SDDM as the default display manager during KDE Plasma installation." class="lightbox-trigger" data-wp-init="callbacks.initTriggerButton" data-wp-on-async--click="actions.showLightbox" data-wp-style--right="state.imageButtonRight" data-wp-style--top="state.imageButtonTop" type="button">
<svg fill="none" height="12" viewbox="0 0 12 12" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z" fill="#fff"></path>
</svg>
</button><figcaption class="wp-element-caption">Selecting SDDM as the default display manager during KDE Plasma installation on Linux Mint.</figcaption></figure></div>
<h3 class="wp-block-heading">Fixing the virtual environment login bug</h3>
<p>In some virtual environments, a bug can occur after rebooting, causing the initial login screen to display only a large keyboard. To prevent this issue, <strong>modify the SDDM configuration file</strong> before rebooting.
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<p>Run the following command:</p>
<pre class="wp-block-code"><code class="language-bash" lang="bash">sudo sed -i '/\[General\]/a InputMethod=' /etc/sddm.conf</code></pre>
<p>This command adds the <code>InputMethod</code> line to the <code>[General]</code> section of <strong>/etc/sddm.conf</strong>, resolving the bug.</p>
<h2 class="wp-block-heading"><span id="Reboot_your_system_after_KDE_installation">Reboot your system after KDE installation</span></h2>
<p>Once the installation is complete, reboot your system to apply the <strong>desktop environment and display manager changes</strong>. Run the following command:</p>
<pre class="wp-block-code"><code class="language-bash" lang="bash">reboot</code></pre>
<p>After restarting, <strong>log in to KDE Plasma</strong>, and your new desktop environment will be ready to use.</p>
<h2 class="wp-block-heading"><span id="Log_in_to_KDE_Plasma_Desktop_on_Linux_Mint">Log in to KDE Plasma Desktop on Linux Mint</span></h2>
<p>After installing <strong>KDE Plasma</strong> and rebooting your system, you will arrive at the <strong>login screen</strong>. Before entering your credentials, ensure that KDE Plasma is selected as your desktop environment.</p>
<h3 class="wp-block-heading">Verify the KDE Desktop Environment</h3>
<ol class="wp-block-list">
<li><strong>Click the configuration button</strong> in the top-right corner of the login screen. This will display a list of available desktop environments.</li>
<li><strong>Select “Plasma”</strong> from the list instead of the default <strong>Cinnamon</strong>, or any other environments such as <strong>MATE</strong> or <strong>Xfce</strong>. The selection menu is usually located in a bar at the top or bottom of the screen.</li>
<li><strong>Enter your login credentials</strong> as usual. Once logged in, you will be inside the KDE Plasma desktop environment.</li>
</ol>
<p>Selecting <strong>KDE Plasma</strong> at the login screen ensures that your system boots into the correct desktop environment every time you log in.</p>
<div class="wp-block-image">
<figure class="aligncenter size-full wp-lightbox-container" data-wp-context='{"imageId":"67b584a308207"}' data-wp-interactive="core/image"><img alt="A fully installed KDE Plasma desktop on Linux Mint, showing a colorful default wallpaper and taskbar." class="wp-image-68240" data-wp-class--hide="state.isContentHidden" data-wp-class--show="state.isContentVisible" data-wp-init="callbacks.setButtonStyles" data-wp-on-async--click="actions.showLightbox" data-wp-on-async--load="callbacks.setButtonStyles" data-wp-on-async-window--resize="callbacks.setButtonStyles" decoding="async" height="768" sizes="(max-width: 1024px) 100vw, 1024px" src="https://linuxcapable.com/wp-content/uploads/2025/02/kde-installed-successfully-on-linux-mint.png" srcset="https://linuxcapable.com/wp-content/uploads/2025/02/kde-installed-successfully-on-linux-mint.png 1024w, https://linuxcapable.com/wp-content/uploads/2025/02/kde-installed-successfully-on-linux-mint-300x225.png 300w, https://linuxcapable.com/wp-content/uploads/2025/02/kde-installed-successfully-on-linux-mint-768x576.png 768w" width="1024"/><button aria-haspopup="dialog" aria-label="Enlarge image: A fully installed KDE Plasma desktop on Linux Mint, showing a colorful default wallpaper and taskbar." class="lightbox-trigger" data-wp-init="callbacks.initTriggerButton" data-wp-on-async--click="actions.showLightbox" data-wp-style--right="state.imageButtonRight" data-wp-style--top="state.imageButtonTop" type="button">
<svg fill="none" height="12" viewbox="0 0 12 12" width="12" xmlns="http://www.w3.org/2000/svg">
<path d="M2 0a2 2 0 0 0-2 2v2h1.5V2a.5.5 0 0 1 .5-.5h2V0H2Zm2 10.5H2a.5.5 0 0 1-.5-.5V8H0v2a2 2 0 0 0 2 2h2v-1.5ZM8 12v-1.5h2a.5.5 0 0 0 .5-.5V8H12v2a2 2 0 0 1-2 2H8Zm2-12a2 2 0 0 1 2 2v2h-1.5V2a.5.5 0 0 0-.5-.5H8V0h2Z" fill="#fff"></path>
</svg>
</button><figcaption class="wp-element-caption">KDE Plasma running on Linux Mint with the default theme and panel layout.</figcaption></figure></div>
<h2 class="wp-block-heading"><span id="Switch_Default_Display_Managers_on_Linux_Mint">Switch Default Display Managers on Linux Mint</span></h2>
<p>If you decide to switch back to a different display manager, such as <strong>LightDM</strong> for Cinnamon or <strong>GDM</strong> for GNOME, you can do so by reconfiguring the default display manager.</p>
<h3 class="wp-block-heading">Reconfigure the Default Display Manager</h3>
<p>Open a terminal and run the following command:</p>
<pre class="wp-block-code"><code class="language-bash" lang="bash">sudo dpkg-reconfigure sddm</code></pre>
<p>Follow the on-screen instructions to select your preferred display manager.</p>
<h3 class="wp-block-heading">Reboot Your System</h3>
<p>After switching the display manager, reboot your system to apply the changes:</p>
<pre class="wp-block-code"><code class="language-bash" lang="bash">reboot</code></pre>
<p>Once restarted, your system will use the newly selected display manager.</p>
<h2 class="wp-block-heading"><span id="Remove_KDE_Plasma_from_Linux_Mint">Remove KDE Plasma from Linux Mint</span></h2>
<p>If you want to remove the <strong>KDE Plasma Desktop Environment</strong> from your Linux Mint system, follow these steps.</p>
<h3 class="wp-block-heading">Uninstall KDE Plasma</h3>
<p>Open a terminal and run the following command:
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<pre class="wp-block-code"><code class="language-bash" lang="bash">sudo apt autoremove --purge "^kde" "^kubuntu" "^plasma"</code></pre>
<p>This command removes all KDE Plasma, <strong>Kubuntu</strong>, and related packages from your system.</p>
<h3 class="wp-block-heading">Remove KDE Backports PPA</h3>
<p>If you previously added the <strong>KDE Backports PPA</strong>, remove it by running:</p>
<pre class="wp-block-code"><code class="language-bash" lang="bash">sudo add-apt-repository --remove ppa:kubuntu-ppa/backports -y
sudo add-apt-repository --remove ppa:kubuntu-ppa/backports-extra -y</code></pre>
<p>Once the removal process is complete, consider running:</p>
<pre class="wp-block-code"><code class="language-bash" lang="bash">sudo apt update && sudo apt upgrade -y</code></pre>
<p>This ensures that your system is fully updated and any leftover dependencies are handled properly.</p>
<h3 class="wp-block-heading">Reboot Your System</h3>
<p>After completing the removal, restart your system to apply the changes:</p>
<pre class="wp-block-code"><code class="language-bash" lang="bash">reboot</code></pre>
<blockquote class="wp-block-quote is-layout-flow wp-block-quote-is-layout-flow">
<p>Removing KDE Plasma may affect other installed applications or dependencies. Make sure to back up any important data before proceeding.</p>
</blockquote>
<h2 class="wp-block-heading"><span id="Frequently_Asked_Questions_FAQs">Frequently Asked Questions (FAQs)</span></h2>
<div class="schema-faq wp-block-yoast-faq-block"><div class="schema-faq-section" id="faq-question-1739940218186"><strong class="schema-faq-question">Q: Does installing KDE Plasma on Linux Mint remove Cinnamon?</strong> <p class="schema-faq-answer"><strong>A:</strong> No, installing KDE Plasma does not remove Cinnamon. Both environments can coexist, and you can select your preferred desktop at the login screen.</p> </div> <div class="schema-faq-section" id="faq-question-1739940431732"><strong class="schema-faq-question">Q: How can I make KDE Plasma the default desktop environment?</strong> <p class="schema-faq-answer"><strong>A:</strong> At the login screen, select “Plasma” before entering your credentials. Your system should remember this selection for future logins.</p> </div> <div class="schema-faq-section" id="faq-question-1739940441707"><strong class="schema-faq-question">Q: Will KDE Plasma run well on older hardware?</strong> <p class="schema-faq-answer"><strong>A:</strong> KDE Plasma is optimized for performance, but for older hardware, use the minimal installation option with the “kde-plasma-desktop” package. Disabling animations in System Settings can further improve performance.</p> </div> <div class="schema-faq-section" id="faq-question-1739940446308"><strong class="schema-faq-question">Q: How do I reset KDE Plasma settings if something goes wrong?</strong> <p class="schema-faq-answer"><strong>A:</strong> You can reset KDE Plasma settings by running the command:<br/><code>rm -rf ~/.kde ~/.config/plasma* ~/.config/kde* ~/.local/share/kactivitymanagerd/</code><br/>in the terminal. This will restore the default settings.</p> </div> <div class="schema-faq-section" id="faq-question-1739940455099"><strong class="schema-faq-question">Q: Can I use KDE applications without installing the full KDE Plasma desktop?</strong> <p class="schema-faq-answer"><strong>A:</strong> Yes, KDE applications can be installed and used in other desktop environments like Cinnamon or XFCE. However, they may install additional KDE-related dependencies.</p> </div> <div class="schema-faq-section" id="faq-question-1739940481967"><strong class="schema-faq-question">Q: How do I switch back to Cinnamon after installing KDE Plasma?</strong> <p class="schema-faq-answer"><strong>A:</strong> At the login screen, click the configuration button, select “Cinnamon,” then log in as usual.</p> </div> <div class="schema-faq-section" id="faq-question-1739940487188"><strong class="schema-faq-question">Q: What is the difference between kde-plasma-desktop, kde-standard, and kde-full?</strong> <p class="schema-faq-answer"><strong>A:</strong> The “kde-plasma-desktop” package provides a minimal KDE environment with only core components. The “kde-standard” package includes a set of common KDE applications. The “kde-full” package installs all available KDE software.
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<h2 class="wp-block-heading"><span id="Conclusion">Conclusion</span></h2>
<p>You have now successfully installed, configured, and, if needed, removed <strong>KDE Plasma</strong> on <strong>Linux Mint 22 or 21</strong>. KDE Plasma provides a <strong>modern, customizable, and efficient</strong> desktop environment that enhances workflow and system usability. Whether you prefer its flexibility, extensive features, or polished design, KDE Plasma offers a powerful alternative to the default Linux Mint desktop.</p>
<p>If you plan to continue using KDE Plasma, explore its settings, themes, and extensions to tailor it to your preferences. If you ever need to switch back, Linux Mint makes it easy to manage multiple desktop environments.</p>
<p>For further customization, troubleshooting, and the latest updates, refer to the <strong>Useful Links</strong> section above. Enjoy your KDE Plasma experience!</p>
<h2 class="wp-block-heading"><span id="Useful_Links_for_KDE_Plasma_with_Linux_Mint">Useful Links for KDE Plasma with Linux Mint</span></h2>
<p>For further information, updates, and community support related to KDE Plasma, refer to the following official resources:</p>
<ul class="wp-block-list">
<li><a data-wpel-link="external" href="https://kde.org/plasma-desktop/" rel="follow external noopener" target="_blank">KDE Plasma Desktop Official Page</a> – Learn more about KDE Plasma, its features, and the latest updates.</li>
<li><a data-wpel-link="external" href="https://community.kde.org/Main_Page" rel="follow external noopener" target="_blank">KDE Community Wiki</a> – Find official KDE documentation, development resources, and community discussions.</li>
<li><a data-wpel-link="external" href="https://launchpad.net/~kubuntu-ppa" rel="follow external noopener" target="_blank">Kubuntu PPA on Launchpad</a> – Overview of the official Kubuntu PPA repositories, including available packages and updates.</li>
<li><a data-wpel-link="external" href="https://launchpad.net/~kubuntu-ppa/+archive/ubuntu/backports" rel="follow external noopener" target="_blank">Kubuntu Backports PPA</a> – Repository providing the latest KDE Plasma versions and applications for Ubuntu-based distributions, including Linux Mint.</li>
</ul>
<p>These links provide additional details, troubleshooting guides, and the latest developments in the KDE</p>
<h3 class="wp-block-heading">Share Your Experience</h3>
<p>Have you installed KDE Plasma on Linux Mint 22 or 21? How was your experience? did everything go smoothly, or did you run into any challenges? Let us know in the comments below. Your feedback helps improve guides like this and supports the Linux community by sharing real-world insights and solutions!</p>
