5d12addbba
Added documentation to stop Xserver-XSDL from enabling its 5 minute default screen saver and blanking the screen. In this scenario even after enabling the 'stay away' option in the debugging or developer options of the android device, the screen will still go black, but leave the back light on. To stop this this, you must disable the Xserver screen saver option in the start up arguments of the server app itself. I spend more than a few hours looking for and figuring this out, when this little bit of info would have saved me a lot of time. Not sure if where I placed it is the best place in the doc, but the info is sound. I am using my android over USB, FYI.
3.0 KiB
Android
This article describes how to use KlipperScreen from an android device
!!! important The experience may not be equal to run KlipperScreen natively, depending on the device there maybe performance degradation or other issues
- First installl KlipperScreen on the Pi
- Install XServer-XSDL on the android device
- Choose USB(ADB) or WIFI
ADB
!!! warning Leaving the phone always connected it's not recommended, remove the battery to avoid issues.
- Install ADB on the Pi
sudo apt-get install android-tools-adb
- Put your Android phone/tablet in Debug mode.
Usually it involves enabling developer mode and "USB debugging" but this varies on different vendors and versions of the device search "how to enable android debugging on device-model-and-brand"
- Copy the launcher script
cd ~/KlipperScreen/scripts
cp sample-android-adb.sh launch_KlipperScreen.sh
chmod +x launch_KlipperScreen.sh
- Go to Startup
WIFI
- Create a launcher script
cd ~/KlipperScreen/scripts
touch launch_KlipperScreen.sh
chmod +x launch_KlipperScreen.sh
nano launch_KlipperScreen.sh
- Paste this into the script (replace the example IP)
DISPLAY=192.168.150.122:0 $KS_XCLIENT
!!! important It's recommended to use a static address, because if the address changes your connection will stop working.
- Go to Startup
Startup
Start Xserver-XSDL On the android device
On the splash-screen of the app go to:
“CHANGE DEVICE CONFIGURATION”
└──Mouse Emulation Modde
└──Desktop, No Emulation
if you missed it, restart the app.
on the Pi
sudo service KlipperScreen stop
sudo service KlipperScreen start
Stop Screen Blanking in Xserver-XSDL
Even after enabling the "Stay Awake" option in the Developer/USB Debugging options of your Android device, the Xserver-XSDL may still go to a black screen but keep the backlight of your device on. To keep the screen always active, upon start up of Xserver-XSDL app, select the Change Device Configuration at the top of the splash screen and then select the Command line parameters, one argument per line option. Append the following argument (must be on seperate lines):
-s
0
This will disable the screen-saver in Xserver and keep KlipperScreen always active.
Migration from other tutorials
KlipperScreen says error option "service" is not supported anymore.
Stop the other service and Remove it, for example if the service is KlippyScreenAndroid:
sudo service KlippyScreenAndroid stop
sudo rm /etc/systemd/system/KlippyScreenAndroid.service
Follow this guide on how to setup the new launcher script with USB(ADB) or WIFI and restart KS.
Help
The Discourse thread has old instructions but you may get some help if needed