touch screen calibration tool
is used interactively to calculate both
the scaling and offset values which will make the pointer act at the indicated
location on the screen.
The following options can be used:
- keep the X cursor visible during calibration. Useful for
indirect absolute devices like tablets.
- specify the X11 display to use.
- defines the name or numerical identifier of the X Input
extension device to calibrate. Use
to figure out the actual name for the X configuration.
device can be omitted if there is only
one X extension pointer with calibration properties in the system.
$ xinput --list
- specifies the XRandR output to with the touch screen is
connected. If omitted xtsscale will use all
heads in multi-head configurations, which is probably not what is
to figure out the names of the outputs.
- specifies that xtsscale will
be verbose, outputting various information, including the raw coordinate
values produced, mostly for debugging purposes.
When good deviations are calculated from the selections made at these points,
will exit and provide on standard output
a result like the following:
This result should be placed into
for further use. The new
calibration is automatically used by the X server. The calibration process can
be interrupted at any time using the ESC key. In this case the current screen
calibration data will not be modified.
To use xtsscale
the mode of the input device should
be set to raw in the /etc/X11/xorg.conf
configuration file. See ws(4)
cannot currently be used to set
the calibration data of a device that is not the first device. (
command appeared in