Hi,
Because I could not resist, I continued searching the web for solutions of this problem.
Finally I discovered that the version of KSTARS used under the RASPBIAN OS was 2.0.0. I checked on my UBUNTU box and found there a version 2.2.0 that worked perfectly. So I needed to install an UBUNTU version allowing me to install KSTARS from the UBUNTU PPA.
This is the way I spotted UBUNTU-MATE for Raspberry PI 2. It was advertised to be rather new so I feared some instability.
Installation went well, I installed KSTARS for Ubuntu and tested it.
Guess what ?
It run perfectly!!! INDI was behaving normally on the Raspberry pi 2. The Firefox Browser is just fantastic. I just needed to add the EQMOD driver for the telescope mount. RPi2 communicates via an EQdir USB-2-Serial connector to my NEQ6-PRO mount.
The only small difference I see is that the maximal slew rate for the mount via EQMOD is 700x while in my normal Ubuntu version it goes up to 800x.
For the rest it works perfectly well.
As ultimate test, I installed also X11vncserver and connected with my tablet via Remote ripple. Also this works much better than under RASPBIAN.
As of today, my telescope mount is controlled by a fast Raspberry Pi 2 Mod B on which I run the INDI server and the KSTARS planetarium software. For controlling this iTelescope I use a tablet, coming with a fantastic high resolution touch screen allowing emulating a mouse and a keyboard. It is just perfect!!!!!!!!!!!!!
Case closed!!! Sorry for bothering.
Best regards,
Stefan