KDED module for handling automatic screen rotation on X11, with visual feedback before orientation change happens. Some assembly might be required.

Run ./install_kded_rotation.sh and install missing dependencies as needed.

You'll most likely need qt5-qtbase-devel, cmake-utils, extra-cmake-modules, iio-sensor-proxy, xrandr, qt5-qtsensors and kf5-kded-devel. Depending on your distribution, these packages might have different names. CMake will tell you which packages it is missing.

orientation-helper is where the actual screen rotation happens. This is achieved by calling xrandr --rotation $value, which works in most circumstances. You can adjust orientation-helper to fit your setup and reinstall to apply.

To reduce or increase the timer before the rotation happens, adjust timer.start(25); in screenrotator.cpp:

void ScreenRotator::startProgress() {
	if (progress == -1) {
		timer.start(25);
		progress = 0;
	}
}