I have two questions:
a) I connected the official RPi-Touchscreen and it works out of the box - but I wanted to rotate it (180 degrees) and managed this with the line "display_rotate=2" in /boot/config.txt. My touchdisplay is now turned, but the touch-input aren´t - meens if I want to use a option in the upper left corner I have to touch the lower right corner and vice versa. How to fix this?
b) After powering off the backlight of the touchscreen isn´t completly off - is there an option to turn the screen fully off?
Thanks in advance!