[Aux_]

Have been able to find something about this phenomenon on the Internet.
The issue seems to be the new kernel (more than 4.8.13?) The DVB C / T stick MN88473 (dvb-demod-mn88473-01.fw) does not seem to work properly.
Under this link I had found help -->> https://forum.libreelec.tv/thread-5537.h...ht=MN88473
Now all is well again.

Is that known? If yes, I am reassured.
But if it does not, maybe someone would like to pass it on to the right place?

Thanks for the attention!

Yes, it's known that 4.9.y and later kernels are causing some issues - @CvH has been producing builds in an effort to narrow down the regression.

Thanx @Milhouse for your answer,
but is generic build not only for pc? http://cvh.libreelec.tv/Test/dvbskys960/
Temporary, I have solved it as already described by me.

But calms me that the problem is known