After changing the scaling from the y-axis from default to semilogy the tickers were not updated anymore automatically when a zoom is applied.
Even after deep searches within the ticker API as well as the mail archive list I could not find an appropriate solution for this.
In the original artist/image (sorry for confused usage of this termini, I am pretty new to matplotlib): the scale has a default log10-base with major tickers including labels and minor tickers without (guess this is the default ticker formatting).
I was messing around a lot with autoscale(enable=True,axis='both') and set_autoscale_on(True) and relim(). But actually the sovereign handling ot this API is still missing for me and I was not able to solve the problem.
Thanks in advance for your help.