--- title: Quasar slug: quasar docTags: createdAt: 2025-01-05T21:31:46.828Z --- View your photos and videos on your Desktop! A Linux/macOS/Windows Desktop Application. :::CtaButton{label="Videos and Screenshots" externalHref="https://videos.nebulasoftware.com/channels/cTnIDrV0w2" openInNewTab="true"} ::: # Installation Instructions ## Download Installer The installers automatically update themselves, so these are always the most current versions. The Quasar application also automatically updates itself, so it too will always be at the most current version. [Linux](https://updates.nebulasoftware.com/Linux/Quasar/Install_Quasar.sh) [Mac Apple Silicon](https://updates.nebulasoftware.com/Mac/Apple_Silicon/Quasar/Install_Quasar_Apple_Silicon.dmg) [Mac Intel](https://updates.nebulasoftware.com/Mac/Intel/Quasar/Install_Quasar_Intel.dmg) [Windows](https://updates.nebulasoftware.com/Windows/Quasar/Install_Quasar.exe) ## Linux ### Requirements While only officially tested on Ubuntu Linux, DisplaySwitcher should work on virtually any 64-bit Linux distribution from the past 5+ years that uses the x86\_64 ("amd64") architecture, including: - Ubuntu 18.04 and newer - Debian 10 and newer - Linux Mint - Pop!\_OS - Fedora - Arch Linux - Manjaro - Zorin OS - Elementary OS - openSUSE - ...and others // todo ### Uninstall The installer automatically replaces previous installations, so you don't ever need to uninstall, else you want to stop using Quasar. Read instructions below, or watch this demo video. // todo embed anything block with the video :::::WorkflowBlock :::WorkflowBlockItem Open a terminal. ![](https://api.archbee.com/api/optimize/ebSjaGT3v1YfeN0LYlDbY/3qN-8Nv01g_5-_On352iS_image.png) ::: ::::WorkflowBlockItem Go to the installation location. :::BlockQuote cd /opt/Quasar ::: :::: ::::WorkflowBlockItem Optionally list the files in the directory. :::BlockQuote ls -al ::: :::: ::::WorkflowBlockItem Run the uninstaller. :::BlockQuote ./uninstall ::: :::: :::WorkflowBlockItem It will ask for your root (sudo) password. // todo screenshot of terminal with all the above commands ::: ::::: ### Install The installer, `Install Quasar.sh`, is a self-extracting script file. It must have its executable bit set to be able to run it. It must be run as the `root` user. Here is how to launch the installer. Read instructions below, or watch this demo video. // todo embed anything block with the video :::::WorkflowBlock :::WorkflowBlockItem Open a Terminal. ![](https://api.archbee.com/api/optimize/ebSjaGT3v1YfeN0LYlDbY/3qN-8Nv01g_5-_On352iS_image.png) ::: ::::WorkflowBlockItem Go to the location where you downloaded `Install Quasar.sh`. :::BlockQuote `cd ~/Desktop` ::: :::: ::::WorkflowBlockItem Optionally list the files in the directory. :::BlockQuote ls -al ::: :::: ::::WorkflowBlockItem Set the executable bit on `Install Quasar.sh`. Note that the filename is case sensitive. Terminal allows you to press the `TAB` key to complete the typing of a filename for you. For example, type `chmod +x ./I` and then press `TAB` and your terminal prompt text will change to `chmod +x ./Install\ Quasar.sh`. The "\ " is how you type a space in a filename. :::BlockQuote chmod +x ./Install\ Quasar.sh ::: :::: ::::WorkflowBlockItem Optionally list the files in the directory. :::BlockQuote ls -al ::: :::: ::::WorkflowBlockItem Run the installer. Again, type `./I` and then `TAB` to finish the typing for you. :::BlockQuote ./Install\ Quasar.sh ::: :::: :::WorkflowBlockItem It will ask you for your `root` (`sudo`) password. ::: ::::WorkflowBlockItem After the installer user interface closes, and the terminal prompt is ready again, delete the installer because it is no longer needed. :::BlockQuote rm ./Install\ Quasar.sh ::: :::: ::::: // todo ### How to Pin to Dash Linux has an Application Icon area called "Dash". You may pin Quasar to Dash to make it easier to launch Quasar. Read instructions below, or watch this demo video. // todo embed anything block with the video ::::WorkflowBlock :::WorkflowBlockItem Run Quasar. // todo screenshot ::: :::WorkflowBlockItem Right click Quasar application icon on the Linux Dash and choose `Pin to Dash` from the menu. // todo screenshot ::: :::WorkflowBlockItem If you want to remove Quasar from the Dash, right click and choose `Unpin` from the menu. // todo screenshot ::: :::: // todo ### Enable/Disable Run at Logon After running the installer, Quasar is automatically set to run when you logon to Linux. You may disable that in Linux Startup Applications. Note that if you uninstall and reinstall, the last state you made to Run at Logon and Desktop Icon are preserved. Read instructions below, or watch this demo video. // todo embed anything block and the video ::::WorkflowBlock :::WorkflowBlockItem Click `Show Apps`. // todo screenshot ::: :::WorkflowBlockItem Select `Startup Applications`. // todo screenshot ::: :::WorkflowBlockItem Uncheck Quasar. // todo screenshot ::: :::: // todo ## Mac ### Requirements Quasar requires macOS 11.0 Big Sur or later, on either: - Intel-based Macs (x86\_64) - Apple Silicon Macs (arm64) Separate installers are provided for each architecture for maximum Quasar performance. “Not sure which version you’re running? See this chart of macOS version names and numbers: [https://en.wikipedia.org/wiki/MacOS\_version\_history](https://en.wikipedia.org/wiki/MacOS_version_history) **Security** - Quasar is signed and notarized by Apple for security and compatibility with macOS Gatekeeper. // todo ### Uninstall The installer automatically replaces previous installations, so you don't ever need to uninstall, else you want to stop using Quasar. Just dragging `/Applications/Quasar` folder to the Trash will leave a few items behind. Run the uninstall to remove that folder plus: - The macOS entry for the Open at Login running of Quasar. - The Desktop Quasar icon. Read instructions below, or watch this demo video. // todo embed anything block and video ::::WorkflowBlock :::WorkflowBlockItem Using Finder, open `/Applications/Quasar` and double click `uninstall.app`. // todo screenshot ::: :::WorkflowBlockItem It will ask for your administrator password. // todo screenshot ::: :::: // todo ### Install Use the installer, `Install Quasar Intel.dmg` or `Install Quasar Apple Silicon.dmg`, to install Quasar. Read instructions below, or watch this demo video. // todo embed anything block and video ::::WorkflowBlock :::WorkflowBlockItem Double click the installer's `.dmg` file to open its volume, which shows the actual Quasar installer. // todo screenshot ::: :::WorkflowBlockItem Double click the installer in the .dmg's opened volume. // todo screenshot ::: :::WorkflowBlockItem It will ask for your administrator password. // todo screenshot ::: :::WorkflowBlockItem While the installer is running, macOS may ask you to grant some permissions by clicking "Allow" when it asks your. // todo screenshot(s) ::: :::WorkflowBlockItem After the installer completes, close the .dmg open volume, eject the .dmg volume, delete the .dmg. Dismiss the `Background Items Added` notice. // todo screenshot ::: :::: // todo ### How to Keep in Dock macOS has an Application Icon area called the "Dock". You may keep Quasar in the Dock to make it easier to launch Quasar. Read instructions below, or watch this demo video. // todo embed anything volume and video ::::WorkflowBlock :::WorkflowBlockItem Run Quasar. // todo screenshot ::: :::WorkflowBlockItem Find Quasar application icon on the Dock, right click it, choose `Options > Keep in Dock` from the menu. // todo screenshot ::: :::WorkflowBlockItem If you want to remove it from the Dock, then right click and remove the checkmark from `Options > Keep in Dock`. // todo screenshot ::: :::: // todo ### Enable/Disable Open at Login After running the installer, Quasar is automatically set to run when you logon to Mac. You may disable that in Mac Settings. Note that if you uninstall and reinstall, the last state you made to Run at Logon and Desktop Icon are preserved. Read instructions below, or watch this demo video. // todo embed anything block and video ::::WorkflowBlock :::WorkflowBlockItem Open macOS `Settings > General > Login Items & Extensions`. // todo screenshot ::: :::WorkflowBlockItem Find `Quasar.app` in `Open at Login` and select it. // todo screenshot ::: :::WorkflowBlockItem Click the small negative sign symbol `-` to remove `Quasar.app` from `Open at Login`. // todo screenshot (hover over "-" sign) // todo screenshot (Quasar.app is now gone) ::: :::: // todo ## Windows ### Requirements Quasar requires 64-bit Windows 10 or later on x86\_64 architecture. // todo ### Uninstall The installer automatically replaces previous installations, so you don't ever need to uninstall, else you want to stop using Quasar. Read instructions below, or watch this demo video. // todo embed anything block and video ::::WorkflowBlock :::WorkflowBlockItem Click Windows `Start` button. ![](https://api.archbee.com/api/optimize/ebSjaGT3v1YfeN0LYlDbY/QP3NS-DdR5dfhZl6OnblY_image.png) ::: :::WorkflowBlockItem Select `Settings` from the menu. ![](https://api.archbee.com/api/optimize/ebSjaGT3v1YfeN0LYlDbY/LEwAK4bWztpJpsAu14_Rn_image.png) ::: :::WorkflowBlockItem Select `Apps`. ![](https://api.archbee.com/api/optimize/ebSjaGT3v1YfeN0LYlDbY/XHkukF9rrwc32IfZafoL8_image.png) ::: :::WorkflowBlockItem Select `Installed Apps`. ![](https://api.archbee.com/api/optimize/ebSjaGT3v1YfeN0LYlDbY/O3kcVNgQxPtudWhVadF_7_image.png) ::: :::WorkflowBlockItem Click the `...` menu to the right of the Quasar entry. // todo screenshot ::: :::WorkflowBlockItem Choose the `Uninstall` menu item. // todo screenshot ::: :::WorkflowBlockItem Click the `Uninstall` button. // todo screenshot ::: :::: // todo ### Install Use the installer `Install Quasar.exe` to install Quasar. Read instructions below, or watch this demo video. // todo embed anything block and video ::::WorkflowBlock :::WorkflowBlockItem Double click the installer .exe file. // todo screenshot ::: :::WorkflowBlockItem When the installer application finishes, you may then delete `Install Quasar.exe`. // todo screenshot ::: :::: // todo ### How to Pin to Taskbar Windows has an Application Icon area called the "Taskbar". You may pin Quasar to the Taskbar to make it easier to launch Quasar. Read instructions below, or watch this demo video. // todo embed anything block and video ::::WorkflowBlock :::WorkflowBlockItem Run Quasar. // todo screenshot ::: :::WorkflowBlockItem Right click Quasar application icon on the Windows Taskbar and choose `Pin to taskbar` from the menu. // todo screenshot ::: :::WorkflowBlockItem If you want to remove Quasar from the Taskbar, right click and choose `Unpin from taskbar` from the menu. // todo screenshot ::: :::: // todo ### Enable/Disable Run at Logon After running the installer, Quasar is automatically set to run when you logon to Windows. You may disable that in Windows Settings. Note that if you uninstall and reinstall, the last state you made to Run at Logon and Desktop Icon are preserved. Read instructions below, or watch this demo video. /// todo embed anything block and video ::::WorkflowBlock :::WorkflowBlockItem Click the Windows Start button. // todo screenshot ::: :::WorkflowBlockItem Choose `Settings` from the menu. // todo screenshot ::: :::WorkflowBlockItem Choose `Apps`. // todo screenshot ::: :::WorkflowBlockItem Choose `Startup`. // todo screeshot ::: :::WorkflowBlockItem Find `Quasar.exe` and click the slider to `on`. // todo screenshot ::: :::WorkflowBlockItem If you want to stop Quasar from running at logon, then click that slider to `off`. ::: :::: // todo