Empty timeline view, empty dates view - but can search for dates?

[Maik Qualmann]

The problem seems to only occur with MariaDB; a locale issue is conceivable. 
However, I can't explain why it only affects the date and timeline view. I did 
make a change for the upcoming digiKam-9.0.0, but the result should be the 
same.

@Christian, could you please try starting digiKam with a different locale:

LANG=C digikam
or
LANG=de_DE digikam

Maik

Am Samstag, 27. Dezember 2025, 20:53:07 Mitteleuropäische Normalzeit schrieb 
Steven Robbins:
> First: thanks, Christian for posting about this!
> 
> On Friday, December 26, 2025 9:22:17 a.m. Central Standard Time Maik
> Qualmann
> wrote:
> > We received this bug report:
> > 
> > https://bugs.kde.org/show_bug.cgi?id=511229
> > 
> > The solution for the user was to use the digiKam AppImage.
> > One would have to dig deeper into Debian to see if they've patched
> > anything.
> I'm the debian maintainer for Digikam.  I can confirm that there are no
> patches made to digikam sources per se.  There are presently just two
> patches, both to the build system: one to disable the configuration probe
> for jasper and one to ensure stuff that links with libdng also links with
> libatomic.  Both are Debian-specific needs, to the best of my knowledge.
> 
> > Am Freitag, 26. Dezember 2025, 15:58:39 Mitteleuropäische Normalzeit
> > schrieb> 
> > Christian Haul:
> > > Hi list,
> > > 
> > > I have been using digikam for ages now but at some point the timeline
> > > view
> > > (and the dates view) suddenly became empty. I have checked with the DB
> > > (MariaDB) that dates are included, also they are properly shown in the
> > > overview and I can even search for pictures in a timeframe.
> > > 
> > > I have no clue what might be a reason for this.
> 
> I am sorry the feature isn't working for you.  I don't have any theory as to
> why.  However, I can confirm that both are still working on my Debian
> system. I'm running a very up-to-date "unstable" debian with KDE and
> Digikam 8.8.0-2 configured for the SQLite database.
> 
> > > I'm running mostly on gnome on debian unstable but using plasma or Xfce
> > > doesn't change a thing. I'm aware that unstable occasionally breaks
> > > things
> > > but this issue persists now for a longer time so I'm afraid it's
> > > probably
> > > some local configuration issue.
> 
> Since you are running unstable, there is a possibility it is a package
> issue. I know from first-hand experience that there have been some hiccups
> with the recent KDE/Plasma 6 upgrades, as evidenced by the long threads on
> the topic; e.g. https://lists.debian.org/debian-kde/2025/10/msg00031.html
> 
> And there's a wiki page https://wiki.debian.org/Plasma%206
> 
> I think I got past my upgrade issues by manually installing packages that
> seemed connected to kde/plasma 6.
> 
> -Steve