I try to rotate the display/touch by 180°.
While the default qt4-x11-demo app is running i can rotate via xrandr -o inverted, but:
- display output has a small offset to the right,
- the touch is also invertec.
- How can I achieve that only the display output inverted?
- How can i achieve this for boot-up console output and without running qt4-x11-demo?