I've commented out the entries
InputDevice "stylus" "SendCoreEvents"
InputDevice "cursor" "SendCoreEvents"
InputDevice "eraser" "SendCoreEvents"
I have there and the errors, e.g. during startup of konqueror, are gone.
So, two (or one?) of those devices, where I don't have a clue what they are for, seem to cause an error.
YES!
I've commented out the entries
InputDevice "stylus" "SendCoreEvents"
InputDevice "cursor" "SendCoreEvents"
InputDevice "eraser" "SendCoreEvents"
I have there and the errors, e.g. during startup of konqueror, are gone.
So, two (or one?) of those devices, where I don't have a clue what they are for, seem to cause an error.