Re: Questions about CalDav Syncproblems (three KDE machines + Android)

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From: Markus Feilner <[email protected]>
To: [email protected]
Cc: Markus Feilner <[email protected]>
Date: Fri, 27 Mar 2026 09:29:58 +0100
Message-ID: <[email protected]>
Organization: Feilner IT
In-Reply-To: <[email protected]>
MIME-Version: 1.0

=46un fact: I installed Merkuro and found that it shows a third set of cale=
ndar=20
data. E.g. the appointment agreed upon via mail and postponed on Tuesday fo=
r=20
today does not appear at all. Seems like the akonadi backend did not delive=
r=20
neither one of the two to merkuro-calendar at all. So I have three differen=
t=20
sets of data:=20

a) The Master on the caldav server that is correct and works fine with=20
thunderbird and davX (Android)
b) the set in Kontact-korganizer via akonadi
c) the set in MerKuro via akonadi

I think I am getting there, slowly. What I also noticed: After a clean logi=
n=20
(remove the calendar from korganizer, restart kontact, add it again) the da=
ta=20
is correct, but as time goes by it is getting out of sync.=20

In will fiddle around with what happens when I export and import calendar d=
ata=20
via files.=20

Thanks for letting me spam you here :-)=20


Am Freitag, 27. M=C3=A4rz 2026, 08:56:03 Mitteleurop=C3=A4ische Normalzeit =
schrieb=20
Markus Feilner:
> thanks for your answer, Vojt=C4=9Bch! Much appreciated.
>=20
> Running a Radicale Caldav Server. That works like a charm with Thunderbird
> and DavX - Android. Only KDE Kontact gets out of sync.
>=20
> e.g. In Kontact, I accepted an appointment change on Tuesday (it was
> scheduled for 10 am today, postponed to 15:00 today) that came in via mai=
l.
> The change is only visible in the one KDE Kontact client that I accepted
> the change in (via mail invite).
>=20
> So this is one client that probably is out of sync, the change never arri=
ved
> on the server. This works fine with DavX and Thunderbird.
>=20
> What I can reproduce is: Appointments in Thunderbird or DavX are
> instantaneously written to the server, but not every KDE client does reci=
eve
> them, even though authentication and all server data are correct. Sometim=
es
> akonadictl restart helps, but not always and not on all machines. Weird
>=20
> I would love to learn how to debug this in akonadiconsole e.g. =E2=80=93 =
I'm digging
> deeper here...
>=20
>=20
> Am Freitag, 27. M=C3=A4rz 2026, 08:11:17 Mitteleurop=C3=A4ische Normalzei=
t schrieb
>=20
> Vojt=C4=9Bch Zeisek:
> > Dne p=C3=A1tek 27. b=C5=99ezna 2026 7:47:20, st=C5=99edoevropsk=C3=BD s=
tandardn=C3=AD =C4=8Das, Markus
> >=20
> > Feilner napsal(a):
> > > Hi there, is this the right place to start a thread about Caldav
> > > sync problems with kontact / korganizer? I would love to learn
> > > about debugging it.
> > > I have three desktops with kontact, opensuse tumbleweed and
> > > plasma6 plus a few android devices. And somehow they always
> > > seem to be out of sync with my radicale CALDAV server.
> > > I can provide more details if wanted.. but is there a korganizer
> > > mailing list or so?
> >=20
> > What is on the server side? I use it with NextCloud an SOGo and I don't
> > have any issue... Did You double check that You download all resources
> > You wish to sync, You have some reasonable sync interval, etc.?


=2D-=20

Best Regards - Mit freundlichen Gr=C3=BC=C3=9Fen,

Markus Feilner, Feilner IT
=2D 20 years of open services -

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