New 3.18 feature

[Tim]

On 10/12/15 02:42, Bruce Pieterse wrote:
> From what I know this button is to allow/prevent screen rotation. I think this be would useful for laptops that can dock/undock screens and be
> used as a tablet. 
That is correct and it will only be displayed on machines that have the relevant sensors.

As for the rotation not working. The library that handles the sensors (iio-sensor-proxy) is relatively new and may still have hardware specific
quirks. There are instructions at https://github.com/hadess/iio-sensor-proxy on checking if the sensor is working properly
Run through that, then file a bug!