I am in the process of learning to use Kstars/Ekos and was testing autofocus yesterday when I noticed the very behaviour you describe. Auto select star checkbox results in a star being selected in the upper left corner. I am using a rasberry pi 3b+ with the stellarmate os ( downloaded 20190404 - so quite new 
My focuser is pegasus astro - dmfc driver
Are there any specific news or settings related to this issue, available?
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Hi, it me again, i did some check, switched on logging.. and it shows clearly in the loggs that what you think is a focuser is the starsense acessory...
I think its necessary to do a litte bit more checking to assure that whats connected in the aux port i actually a focuser
Also, the driver says my mont in not aligend an get wierd time and utc offset, but i confidently checked that time (gps-updated) and utc offset were correct and i made a quick align in the handset before connecting indi. Still there is some error som were..
Here is a log sample related to the focuser isse:
[2019-04-03T14:54:42.550 CEST DEBG ][ org.kde.kstars.indi] - Celestron NexStar : "[DEBUG] CMD <50 01 11 FE 00 00 00 02> "
[2019-04-03T14:54:42.551 CEST DEBG ][ org.kde.kstars.indi] - Celestron NexStar : "[DEBUG] RES <06 33 23> "
[2019-04-03T14:54:42.551 CEST DEBG ][ org.kde.kstars.indi] - Celestron NexStar : "[DEBUG] Getting focuser version... "
[2019-04-03T14:54:42.552 CEST DEBG ][ org.kde.kstars.indi] - Celestron NexStar : "[DEBUG] Does focuser exist... "
[2019-04-03T14:54:42.552 CEST DEBG ][ org.kde.kstars.indi] - Celestron NexStar : "[DEBUG] CMD <50 01 12 FE 00 00 00 04> "
[2019-04-03T14:54:44.917 CEST DEBG ][ org.kde.kstars.indi] - Celestron NexStar : "[DEBUG] RES <06 33 FE 00 21> "
[2019-04-03T14:54:44.920 CEST DEBG ][ org.kde.kstars.indi] - Celestron NexStar : "[DEBUG] Focuser Version 6.51.65024, exists true "
[2019-04-03T14:54:44.923 CEST DEBG ][ org.kde.kstars.indi] - Celestron NexStar : "[DEBUG] Firmware Info HC Ver 1.19 model CGEM DX StarSense GEM mount, HW Ver 6.51 "
[2019-04-03T14:54:44.925 CEST DEBG ][ org.kde.kstars.indi] - < Celestron NexStar >: < ON_COORD_SET >
[2019-04-03T14:54:44.974 CEST DEBG ][ org.kde.kstars.indi] - < Celestron NexStar >: < EQUATORIAL_EOD_COORD >
So I guess the code assumes any attached device that show a version number is a focuser. as you can se in the firmware info string, it says "Starsense", is it possible to get a similar firware info string related to the focuser and use that to do a string search for the work "focuser" (or?) to ensure is the focuser devise and not the "Starsense"... 
I guess you sending commands for the focuser might result in other errors/strange behaviour in the hand controller since there is no focuser there...
What can i do?
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Hi
I don't have a focuser attatched to my cgem dx mount aux port ( i have the starsense accessory attached)- I have a starizona focuser but that's attached via usb but the focuser tab still show up under the mount tab anyway, and the indi tries to talk to my mount about the celextron focuser and generates errors.. Maybe something more is required to understand what may be attached to the aux port so tha focuser tab does not show up when there is no focuser there... Or what could i be doing wrong
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