Hi, We update the libgphoto2 as you say, and we still get the same problem, the logs:

- INDI Control Panel:
2018-06-22T19:53:41: [INFO] Location updated: Longitude (0) Latitude (51.4683)
2018-06-22T19:53:41: [INFO] Device configuration saved.
2018-06-22T19:53:41: [INFO] Saving device configuration...
2018-06-22T19:53:41: [INFO] Device configuration applied.
2018-06-22T19:53:41: [INFO] Location updated: Longitude (0) Latitude (51.4683)
2018-06-22T19:53:41: [INFO] Loading device configuration...
2018-06-22T19:53:41: [INFO] Mount is unparked.
2018-06-22T19:53:41: [INFO] Telescope simulator is online.

-Ekos:
2018-06-22T14:53:45 Unable to establish:

+ Canon DSLR
Please ensure the device is connected and powered on.
2018-06-22T14:53:41 Guider port from Telescope Simulator is ready.
2018-06-22T14:53:41 Telescope Simulator is online.
2018-06-22T14:53:41 INDI services started on port 7624.
2018-06-22T14:53:41 Starting INDI services...
2018-06-22T14:53:06 INDI services stopped.
2018-06-22T14:53:04 Telescope Simulator is disconnected.
2018-06-22T14:53:03 Disconnecting INDI devices...
2018-06-22T14:50:49 Unable to establish:

+ Canon DSLR
Please ensure the device is connected and powered on.
2018-06-22T14:50:45 Guider port from Telescope Simulator is ready.
2018-06-22T14:50:45 Telescope Simulator is online.
2018-06-22T14:50:45 INDI services started on port 7624.
2018-06-22T14:50:45 Starting INDI services...

The camera is connected, battery full, manual mode, and darktable can use it normally but is close.

we attach the log file of the command:
gphoto2 --debug --debug-logfile=gphoto.txt --capture-image-and-download

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