xenial (1) xinput_calibrator.1.gz

NAME

       xinput_calibrator - A generic touchscreen calibration program for X.Org

SYNOPSIS

       xinput_calibrator [OPTIONS]

DESCRIPTION

       xinput_calibrator is a program for calibrating your touchscreen, when using the X Window System.

       It currently features:
       - works for any standard Xorg touchscreen driver (uses XInput protocol)
       - mis-click detection (prevents bogus calibration)
       - dynamically recalibrates the evdev driver
       - outputs the calibration as xorg.conf.d snippet or HAL policy file
       - and more

       see http://www.freedesktop.org/wiki/Software/xinput_calibrator

OPTIONS

       -h, --help
               Print a help message listing the version and available options.

       -v, --verbose
               Print debug messages during the process.

       --list  List the calibratable input devices.

       --device device_name_or_id
               Select a specific device to calibrate; use --list to list the calibratable input devices.

       --precalib min_x max_x min_y max_y
               Manually provide the current calibration setting.
               This  is  useful  if the calibration values are stored in your xorg.conf, but the driver does not
               export them through XInput (eg. the calibrator can not know these values)

       --misclick nr_of_pixels
               set the misclick threshold (0=off, default: 15 pixels)

       --no-timeout
               turns off the timeout

       --output-type auto|xorg.conf.d|hal|xinput
               type of config to output (auto=automatically detect, default: auto)

       --fake  Emulate a fake driver (for testing purposes)
               Useful to test the calibrator without applying the values, and possibly  even  without  having  a
               touchscreen.

       --geometry widthxheight
               Manually provide the geometry (width and height) for the calibration window.

USAGE

       Run xinput_calibrator in a terminal, as it prints out the calibration values and instructions on standard
       output.

       After clicking the 4 calibration points, xinput_calibrator will calculate  the  new  calibration  values.
       Depending on the Xorg touchscreen driver you use, the new values can be made permanent in different ways:

       Evdev:
           Automatically recalibrates the driver for this session,
           Supports following --output-types: auto, xorg.conf.d, hal, xinput

       Usbtouchscreen:
           Automatically recalibrates the *kernel module*, saved in /etc/modprobe.conf.local
           Supports following --output-types: auto

       Other Xorg touchscreen drivers:
           No automatic calibration possible,
           Supports following --output-types: auto, xorg.conf.d, hal

EXAMPLES

       To run the calibrator, type in your terminal:

           xinput_calibrator

       If something goes wrong, or not as expected, turn on verbose messages:

           xinput_calibrator -v

       If  you  have  to  manually provide the current calibration values (when using EVDEV, you can use this to
       reset the calibration first):

           xinput_calibrator --precalib 0 1000 0 1000

TROUBLESHOOTING

       In general, run the calibrator with the -v option, it will tell you what happens and what goes wrong.

       Mis-click detection, the calibrator can  automatically  detect  clicks  with  unreasonable  values.  This
       prevents you from ending up with a bogus calibration.

       If you keep getting the message 'Mis-click detected, restarting...', one of the following is happening:
         1. you are bad at clicking on crosses, use a stylus or increase the --misclick threshold
         2. your device is not properly supported by the kernel, it interprets the clicks wrong
         3. your screen has a non-linear deformation, 4-point calibration can not help you

SEE ALSO

       xinput(1)

AUTHORS

       Tias Guns <tias@ulyssis.org>