[digiKam-users] How to interpret DigiKam error message when connecting to camera

[a squared]

Ah, life in cyberspace: never a dull moment or unexpected (over) reaction.
I am not sure how responder Remco, who is clearly knowledgeable, was able
to see inside my brain to discover that I 'chose to skip over the MTP
bit...'. Could there be another explanation - that I didn't understand it,
not being so knowledgeable and slightly 'doddery' given my age, hmmm?
Perhaps that is also why I am unable to understand how my statements on the
'hassle' of using a card reader can be characterised as a 'rant'. My
dictionary defines 'rant' as 'to utter in loud, violent or bombastic
tones'. Could I have an analysis of which parts of my statement match which
parts of the definition?

Aside from all that it is most useful to know that I am ignored 'here'
(where ever 'here' is) and in the 'dt list', whatever that is. But how does
Mr. Remco know that I am ignored in these two places? Has there been a
comprehensive survey of the two audiences ? I would be surprised -
disappointed even - that people would choose to ignore me without doing me
the courtesy of saying why. That's hardly a civilised way to behave.

On a more optimistic note, I have now found a procedure that will allow me
to repeatedly and reliably read and transfer images directly from either of
my two cameras, using DK 6.4.0 Appimage, under Mint 19.3. The procedure
strongly suggests that my previous failures were not user error  and the
details of which could possibly, in the hands of  technically qualified
people, clarify whether there is a problem in the build of the 6.4.0 DK
appimage, or a defect in the 19.3 version of Mint Cinnamon. However, as I
am assured that I am being ignored, and the issue I was facing having gone
away, I'll close the discussion here.


On Mon, 29 Jun 2020 at 18:17, Stuart Rogers <stuart at stella-maris.org.uk>
wrote:

> I understand, however surely the distro should allow the user set the
> option to not allow automounting just as openSUSE does. Is that not a bug
> in the distro?
>
> Stuart
>
> On 29 June 2020 17:28:53 BST, "Remco Viëtor" <remco.vietor at wanadoo.fr>
> wrote:
> >On lundi 29 juin 2020 18:01:27 CEST Stuart T Rogers wrote:
> >> Well I have been able to recreate the message from Digikam but only
> >by
> >> having the camera open in Dolphin file manager and accessing the
> >files,
> >> then Digikam fails to connect.
> >>
> >> One interesting point I have found is that if I have the camera open
> >in
> >> Dolphin accessing the files then I can also open the camera in
> >Gwenview
> >> at the same time but still not in Digikam. This does mean to me that
> >> Digikam is accessing the camera using a different method to that of
> >some
> >> other applications. I have also tested Darktable and it also is
> >unable
> >> to access the camera if it is open in another app like Dolphin or
> >> Gwenview, so it looks like Darktable uses the same method as Digikam
> >and
> >> would likely exhibit the same issue on your system (it shows no
> >> supported devices when I try to scan for devices on import).
> >>
> >> Also on checking how my distro manages removable devices I have it
> >set
> >> to NOT auto mount anything at all!
> >>
> >> I think the only resolution for you would be to raise this as an
> >issue
> >> with your distro as it looks like Digikam is working as designed.
> >
> >That would be consistent with the computer using the MTP protocol to
> >access
> >the camera. Iirc, that protocol allows only one access at the time to
> >the file
> >system on the camera, so once KDE/Plasma grabs the device, Digikam
> >won't have
> >access anymore. Same for Darktable, as neither is using the KDE
> >libraries
> >(gPhoto2 is used to access the camera).
> >
> >That also means that the distro works as designed, as the failure is
> >inherent
> >to the protocol used.
> >
> >So there are two options:
> >- tell the camera to behave as a mass storage device (if that's
> >possible),
> >then it can be mounted as an external drive
> >- use a card reader
> >
> >Remco
> >
> >(P.S. I told OP the same thing in his parallel thread, he chose to skip
> >over
> >the MTP bit, and just started ranting about how using a card reader was
> >more
> >complicated and bad for the SD card, he is now ignored both here and in
> >the dt
> >list)
>
> --
> Sent from my Samsung Galaxy J5 with K-9 Mail. Please excuse my brevity.
>
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