Hi, I am Giovanna from Italy and I am a new user of this forum. I am sorry if it is the wrong section of the forum.
Maybe you could help me to fix this problem:

I installed PHD2 on a laptop which runs Xubuntu 18.04.3 LTS according to the procedure in openphdguiding website, and it works. My guiding camera is a QHY5L-II mono.

I tried to run PHD2 with this camera, but in the list of supported cameras there is only QHY5, not QHY5L-II mono, as you can see in the attached screenshot. I checked for drivers on indilib website, but they don't work. Where am I getting wrong?

Instead of QHY, select INDI camera. Then in your Ekos profile, include the QHY as the guide camera. Then from PHD2, you can select it as the guide camera.