To be informed about updates: * [follow GfxTablet on Twitter](https://twitter.com/GfxTablet) * [subscribe to our RSS/Atom feed](http://feeds.feedburner.com/GfxTablet) * [subscribe to email notifications](http://feedburner.google.com/fb/a/mailverify?uri=GfxTablet) What is GfxTablet? ================== GfxTablet shall make it possible to use your Android device (especially tablets) like a graphics tablet. It consists of two components: * the GfxTablet Android app * the input driver for your PC The GfxTablet app sends motion and touch events via UDP to a specified host on port 40118. The input driver must be installed on your PC. It creates a virtual "network tablet" on your PC that is controlled by your Android device. So, you can use your Android tablet or smartphone to control the PC and, for instance _use GIMP with your Android tablet as a graphics tablet_ (even pressure-sensitive, if your hardware supports it). Homepage: https://rfc2822.github.io/GfxTablet/ If you want to support this project, please consider a [donation](#donate). License ------- GfxTablet is licensed under The MIT License. Author: Ricki Hirner / powered by [bitfire web engineering](https://www.bitfire.at) / [gimpusers.com](http://www.gimpusers.com) Features -------- * Pressure sensitivity supported * Size of canvas will be detected and sent to the client * Option for ignoring events that are not triggered by a stylus pen: so you can lay your hand on the tablet and draw with the pen. Requirements ------------ * App: Any device with Android 4.0+ and touch screen * Driver: Linux with uinput kernel module (included in modern versions of Fedora, Ubuntu etc.) If you use Xorg (you probably do): * Xorg-evdev module loaded and configured – probably on by default, but if it doesn't work, you may need to activate the module: see https://github.com/rfc2822/GfxTablet/issues/7#issuecomment-13338216 Installation ============ Github repository: https://github.com/rfc2822/GfxTablet Part 1: uinput driver --------------------- On your PC, either download one of these binaries (don't forget to `chmod a+x` it): * [networktablet 64-bit, dynamically linked, tested with Fedora 18 and Ubuntu 15.04](https://github.com/rfc2822/GfxTablet/blob/binaries/networktablet-x86_64?raw=true) or compile it yourself (don't be afraid, it's only one file) 1. Clone the repository: `git clone git://github.com/rfc2822/GfxTablet.git` 2. Install gcc, make and linux kernel header includes (`kernel-headers` on Fedora) 3. `cd GfxTablet/driver-uinput; make` Then, run the binary. The driver runs in user-mode, so it doesn't need any special privileges. However, it needs access to `/dev/uinput`. If your distribution doesn't create a group for uinput access, you'll need to do it yourself or just run the driver as root: `sudo ./networktablet` Then you should see a status message saying the driver is ready. If you do `xinput list` in a separate terminal, should show a "Network Tablet" device. You can start and stop (Ctrl+C) the Network Tablet at any time, but please be aware that applications which use the device may be confused by that and could crash. `networktablet` will display a status line for every touch/motion event it receives. Part 2: App ----------- You can either 1. compile the app from the source code in the Git repository, or 2. [download it from the open-source market F-Droid](https://f-droid.org/repository/browse/?fdcategory=Multimedia&fdid=at.bitfire.gfxtablet) (**recommended**), or 3. download it from Samsung Galaxy Apps, or 4. [download it directly from Github](https://github.com/rfc2822/GfxTablet/releases), or 5. [download it from Google Play](https://play.google.com/store/apps/details?id=at.bitfire.gfxtablet) After installing, enter your host IP in the Settings / Host name and it should be ready. Part 3: Use it -------------- Now you can use your tablet as an input device in every Linux application (including X.org applications). For instance, when networktablet is running, GIMP should have a "Network Tablet" entry in "Edit / Input Devices". Set its mode to "Screen" and it's ready to use. Frequently Asked Questions ========================== Using with multiple monitors ---------------------------- If you're using multiple screens, you can assign the Network Tablet device to a specific screen once it's running (thanks to @symbally and @Evi1M4chine, https://github.com/rfc2822/GfxTablet/issues/30#issuecomment-30605827): 1. Use `xrandr` to identify which monitor you would like to have the stylus picked up on. In this example, `DVI-I-1` is the display to assign. 2. Do `xinput map-to-output "$( xinput list --id-only "Network Tablet" )" DVI-I-1`. Known issues ------------ * With Gnome 3.16 (as shipped with Fedora 22), [Gnome Shell crashes when using GfxTablet](https://bugzilla.redhat.com/show_bug.cgi?id=1209008). Support ======= For bug reports, please use the [Github issues page](https://github.com/rfc2822/GfxTablet/issues) or just fork the repository, fix the bug and send a merge request. Donate ------ If you find GfxTablet useful, please feel free to send a donation: **PayPal:** [info@bitfire.at](https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=ZT8F5NRCBDB2C&no_note=0&no_shipping=1¤cy_code=EUR&item_name=GfxTablet+donation) **BitCoin:** 1KSCy7RHztKuhW9fLLaUYqdwdC2iwbejZU **Wire transfer:** * Account name: bitfire web engineering * IBAN: AT81 1400 0272 1006 2055 * BIC: BAWAATWW * Reference text: GfxTablet [![Flattr this repository](https://api.flattr.com/button/flattr-badge-large.png)](https://flattr.com/submit/auto?user_id=bitfire&url=https://github.com/rfc2822/GfxTablet&title=GfxTablet&language=&tags=github&category=software)