1. Install
2. Use
1.ubuntu graphical desktop appears automatically reverse the rotation of
first ctrl+alt+Topening the control terminal, the input xrandr -o normalrotation of the normal viewing angle ( xrandr -o left/rightrespectively, L, D); and then disable auto-rotation in the upper right corner from the right click on the third button. If you want to completely remove the automatic rotation function is said to be in a terminal command sudo apt-get remove iio-sensor-proxyremoves the corresponding service (valid test, you may need to restart to take effect) - If you want to come back safe autorotation service (phone might need on the flat), you can use command sudo apt-get install i io-sensor-proxy(have not tried)
