As I mentioned in the other post, we have operated using KStars and Lin_guider for several years. We utilize LInux Mint 18 with a Mate desktop. The observatory equipment consists of an AP1600GTO, Celestron Edge14, Apogee F8300 camera, Robofocus, Atik Filter wheel, and Orion guider. As mentioned in other posts, Orion guide cameras are manufactured by QHY for Orion. The QHY INDI drivers work fine as long as appropriate VIDPID values are respected. Control is accomplished using a Dell Desktop with Intel I-7 processor.
I have a QHY2, QHY5, QHY7, QHY8, QHY9, QHY11, and QHY5L-II series cameras. I can definitely tell you for certain, multiple QHY cameras and the QHY KStars INDI driver do not work properly and should be used with caution. My present testing involves using a QHY5 guider, QHY9C camera and a QHY5L-II all sky camera. They all are recognized by the driver, however, imaging immediately results in driver issues.
There is, however, alternate software to operate QHY cameras with Linux. This site may be of interest:
github.com/OpenSkyProject/OpenSkyImager
Dan