fourdollars/x11-touchscreen-calibrator — pull request #3 by timchen119 (2014-03-27 07:48:23+00:00)
Title: Fixed wrong calibration issue when screen only rotate but do not scale.

When XRandR property do not have scaling mode or scaling mode is none,
rotation of screen cause the touch panel miscalibration.
This may happen with AMD graphics + fglrx driver.