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

--nextPart2280170.Hq7AAxBmiT
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain; charset="utf-8"; protected-headers="v1"
From: Markus Feilner <[email protected]>
To: [email protected]
Cc: Markus Feilner <[email protected]>
Date: Fri, 27 Mar 2026 10:07:34 +0100
Message-ID: <[email protected]>
Organization: Feilner IT
In-Reply-To: <[email protected]>
MIME-Version: 1.0

Ok, in my radicale Container I can see ics-Files popping up for new=20
appointments coming in. I can confirm from that that TB and DavX work as=20
promised. Will test now with Kontact, Akonadi and Merkuro. I am using the=20
debugger and features of akonadikonsole.=20


Am Freitag, 27. M=C3=A4rz 2026, 09:29:58 Mitteleurop=C3=A4ische Normalzeit =
schrieb=20
Markus Feilner:
> Fun fact: I installed Merkuro and found that it shows a third set of
> calendar data. E.g. the appointment agreed upon via mail and postponed on
> Tuesday for today does not appear at all. Seems like the akonadi backend
> did not deliver neither one of the two to merkuro-calendar at all. So I
> have three different sets of data:
>=20
> a) The Master on the caldav server that is correct and works fine with
> thunderbird and davX (Android)
> b) the set in Kontact-korganizer via akonadi
> c) the set in MerKuro via akonadi
>=20
> I think I am getting there, slowly. What I also noticed: After a clean lo=
gin
> (remove the calendar from korganizer, restart kontact, add it again) the
> data 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
> data via files.
>=20
> Thanks for letting me spam you here :-)
>=20
>=20
> Am Freitag, 27. M=C3=A4rz 2026, 08:56:03 Mitteleurop=C3=A4ische Normalzei=
t 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 Thunderb=
ird
> > 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
> > mail.
> > 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
> > arrived 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
> > recieve them, even though authentication and all server data are correc=
t.
> > Sometimes 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 Normalz=
eit schrieb
> >=20
> > Vojt=C4=9Bch Zeisek:
> > > Dne p=C3=A1tek 27. b=C5=99ezna 2026 7:47:20, st=C5=99edoevropsk=C3=BD=
 standardn=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 -

Digital Sustainability, Sovereignty, Sobriety
Open Source Strategy, Knowledge Management, Documentation
Trainings, Workshops, Coaching, Networking, Politics, Journalism

https://www.feilner-it.net,
93059 Regensburg W=C3=B6hrdstr. 10,
+49 170 302 7092 (+Signal)
https://mastodon.social/@mfeilner
https://mastodon.social/@FeilnerIT

PGP:            40A3C306F96133067C11CFD9A958A906268C9F0A
http://www.feilner-it.net/files/MFpub.asc
Xing:           http://www.xing.com/profile/Markus_Feilner
LinkedIn:       https://www.linkedin.com/in/markusfeilner
@mfeilner:      Mastodon, Matrix, Jabber, ...

Once you see something, you can't unsee it.
And once you've seen it, keeping quiet,
saying nothing, becomes as political an act
as speaking out. (Arundhati Roy)

--nextPart2280170.Hq7AAxBmiT
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: This is a digitally signed message part.
Content-Transfer-Encoding: 7Bit

-----BEGIN PGP SIGNATURE-----

iQFPBAABCAA5FiEEQKPDBvlhMwZ8Ec/ZqVipBiaMnwoFAmnGSNYbFIAAAAAABAAO
bWFudTIsMi41KzEuMTIsMiwyAAoJEKlYqQYmjJ8KxX0H+gP3amaZjcpfBBC+VWEx
Ju2I3hGQaO+C4RKpqjpy4mL79RARw/7LPBDw7tLcxIoWFo9BnUeiEDAs4cKdk1UN
TTZM6rJ3BBQPHooddmGFNmRP0Yl5pyDyladCvXNO7Pgtg0mE6WDXzOUon/g+G+rM
4iKOSWkijCGUaE3dViq+RjgXTqUlRZRJ98To/tLWm/VJEG/C5k0l/jYkyVBAqceU
sGRddYwmjXODN5V5IrYSHUI82RfKV1H8MAr1jpOb5ZzYkkZtv2OiG8wgdCt0GNOx
1E2IGxPnrlgzl092tDRXoRLiiEDcCoP4xcGh0BkXNSFMONxlfwcGvLfFjLijB6GM
8tE=
=Mn1v
-----END PGP SIGNATURE-----

--nextPart2280170.Hq7AAxBmiT--