Support
A little help. A lot you can do.
Set up your first display, find the right setting, or work out why something is not behaving as expected.
A good place to start
32 guides
Getting started
The apps, permissions and settings you need first.
Set up your first displayChoose the right app for each device and put your computer’s desktop on another screen.Permissions explainedWhat to allow on the computer, and when the Android app needs camera or microphone access.Find the right settingA map of Decky’s settings on the computer and the options in Decky Display on Android.Licences and recoveryActivate a key, use it on two computers, or recover a lost licence.
Connections & pairing
Connect by cable or network, and choose which devices to trust.
Connect an Android device by USBUse a data cable for a direct connection, without USB debugging.Connect over the local networkFind your computer over Wi-Fi or a wired local network.Pair and manage trusted devicesTell Decky which devices may use a desktop and control the computer.Link two computers with Decky LinkLink two computers that run Decky, then move one keyboard and pointer between them or open one as a screen for the other.
Displays & desktops
Choose what appears, how it looks and where it belongs.
Choose Extend, Mirror or AloneGive the device its own desktop, show an existing screen, or bring the desktops together.Use your computer as a tabletUse a tablet as your computer’s main screen with Alone, Natural touch on the picture and a linked phone for typing.Use Decky in split-screen or a windowPut your computer’s desktop beside Android apps. Set up split-screen, resize a Decky window and keep the picture, scaling and input aligned.Resolution, scaling & refresh rateBalance desktop space, text size, sharpness and motion.Arrange your screensPut displays where they sit on your desk. On a Mac, save that layout and restore it later.Create a spare desktopMake a desktop with no screen behind it.Use another computer as a displayRun apps on one computer and view them on another, Mac or PC.Share and control an Android screenShare and operate your Android tablet or phone from a computer or another Android device. Set up direct or Room sharing, navigate apps and Home, type and annotate.
Touch & controls
Use fingers, a pen or the device’s own keyboard to work on the computer.
Use Natural touch on your computerTap, scroll and drag directly on an Android screen showing your computer. Set up the keyboard and tune how touch feels.Use a phone or tablet as a ControllerSet up an Android keyboard and touchpad for your computer, then adjust gestures, keyboard behaviour and scrolling.Draw and scroll with a penDraw with pressure and tilt, choose how the pen scrolls and adjust it separately from your fingers. On a Mac, Automatic picks drawing or scrolling for each app.Use a keyboard and mouseSend input from peripherals connected to the Android device back to the computer.Control Android with your computer’s mouse and keyboardSet up Direct USB or Wi-Fi control, choose screen edges, return to the computer and work across Decky’s desktop and Android apps.Reach your computer’s controlsOpen Mission Control or Task view, Spotlight or Search, and other actions on your computer from the device.Annotate on your own or togetherMark the screen from the computer running Decky, or from Decky Display on a computer or Android. Learn how drawing permission, touch and stylus input work.
Sound, camera & Rooms
Send sound out, bring a camera in, or share a screen.
Play your computer’s sound on the deviceSend the computer’s sound to a device. On a Mac, a device can also be a separate audio output.Use the device as a webcamChoose an Android camera in a video app on your computer.Use your desktop as a webcamSend a Mac screen, window or spare desktop into a compatible video app as Decky Desktop, with optional annotations and a webcam overlay.On a MacUse the device as a microphoneBring an Android microphone into a Mac call or recording app.On a MacComing to Windows as a free updateKeep Android camera, microphone and sound running in the backgroundStart hardware features, switch Android apps or lock the device, and learn how to stop them or recover from a camera interruption.Share and arrange two sourcesAdd a second screen or window, choose a layout and swap the pictures in a Room or Decky Desktop.On a MacStart or join a RoomShare a screen, a spare desktop or an Android source with several viewers through a Room hosted on a Mac or PC. On a Mac, share windows too.
Troubleshooting
Start with the symptom and check one thing at a time.