You'd need 2.3.0 (i.e. kstars-bleeding), but it's not available on Mint since Mint is based on Ubuntu 14.04 and you'd need 14.10+ to run the latest KDE5/KStars. You can get the latest version by using Kubuntu 15.04 with kstars-bleeding package.
OK, if I understand right, I have to reinstall my PC with another Linux Distro to run EKOS without this behavior. I choose Mint 17 LTS because I am not familiar with linux in deep. Shame my trip with INDI will probably end here.
Thomas Jäger www.starhopper.eu
300/1200mm, 200/1000mm & 200/618mm Newton, Esprit 100/550mm, C 9.25"
SBIG STL11000M C2, Moravian G2-8300, ZWO ASI183MM-C and ASI2600