Detect external sidecar modification

[Maik Qualmann]

Yes, digiKam detects changes to sidecar files if the modification date has
changed.
With the sidecar file setting enabled, digiKam uses as internal
modification date from either the image or the sidecar file, whichever is
more recent.

I suspect you need to enable the option to re-read the metadata when
changes occur in the digiKam metadata settings. Only then will a deep scan
be performed that detects all changes.

Furthermore, you need to check which metadata fields you are modifying
externally and ensure that these are also read first in the advanced
digiKam metadata settings (at the top of the list for each metadata type).

Maik

Am Di., 11. Nov. 2025 um 13:03 Uhr schrieb Daniel Schröer <
danielschroeer at googlemail.com>:

> Hello,
>
> I am new to Digikam. I am trying to configure it so that it works together
> with another application (Immich in my case).
>
> I have configured it to  read from and write to sidecar files. Also, I
> have checked "Scan for new items at startup", but not "Fast Scan".
>
> As I understand it, the program should detect externally modified files
> upon startup. Does this also apply if only the sidecar file has been
> changed, but not the actual image file? What if a previously non-existent
> sidecar has been added externally?
>
> In my experiments this was not recognized. Is there a way to make it work?
>
> I am grateful for any comments and suggestions.
>
> Best regards
> Daniel
>
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