[digiKam-users] Failed to connect to the camera

[Olivier Croquette]

On 07/06/2022 22:42, Maik Qualmann wrote:
> The problem is known, a system applet is running under Ubuntu/Gnome that
> occupies the USB port, so that another GPhoto2 can no longer access it.
> digiKam requires direct access and does not use the Gnome applet or under
> Plasma KIO.

Hi Mike,

thanks for putting me on the right track. I found that a quick and easy 
workaround is to eject the device from the Gnome file browser before 
using the import function of digiKam. It is also possible to do it from 
the command line:

gio mount --list

gio mount --unmount mtp://...

It would be nice to give users the hint, in the application and/or the 
FAQ. Ubuntu is a pretty common distribution. Apparently, the issue can 
also occur on other systems. Here is a proposal for the FAQ:


      digiKam sees my camera, but fails to access it

When using the import function, you may see the device, but trying to 
access it leads to the following error message:

"Failed to connect to the camera: Please make sure it is connected 
properly and turned on".

Usually, this is because another application on the system is using the 
device already. Gnome (gvfs) is known to cause this issue. You can just 
eject the device in the Gnome file browser before using the import 
function of digiKam. In general, check what other software or parts of 
the operating system could use the device, and stop them.


Olivier
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