analog stick config options break controls

[Porcinus]

I think it is shorted to ground or the analog stick is dead :S
Can you try to switch with the other stick to see if it behave the same.

For the drift, if you want to increase the dead zone, it is the 4th value (300).

You can also try to add " auto_center_analog=1 " to your option line but since you have troubles with a stick, it is not a good idea right now.
If you end up adding it, please note that you will need to leave the sticks alone during boot of the device since the parameter force the driver to you "current" real value as center point.