[tryton] Calendar module + Thunderbird

[Étienne Labaume]

Hello there,

Short version: Has anyone a recommendation for a CalDAV client to work 
with tryton? Thunderbird/Icedove seems not to be able to write events in 
a Tryton calendar, at least in version 17 (in Debian 7.4) with Tryton 
2.8. Or does any other combination work?

Long version: On a fresh install of Tryton 2.8 (version packaged by 
OpenBSD) with the calendar module, I'm trying to have Thunderbird 
reading and writing events. It's currently accessing it using https, and 
there's no problem to read events (although I had to point Thunderbird 
to the .ics file and not just the directory as specified in [1]).

I'm just testing Tryton yet, my user is on its own (apart from the admin 
account), it has read/write access to the calendar, and can create 
events from the Tryton client. These events show up in Thunderbird. But 
every time Thunderbird tries to create an event, it ends up with an 
error (MODIFICATION_FAILED) with no more details, and then the calendar 
becomes unavailable in Thunderbird. When restarting Thunderbird, 
authentication to Tryton is performed, but the calendar is turned to 
read-only, until I manually turned it to read/mrite. Then the same error 
occurs if I want to create an event. On the server side, nothing appears 
in the logs.

Please, what should I do to diagnose this better? Anything here that 
rings a bell?

[1] 
http://code.google.com/p/tryton/wiki/HowtoUsingCalendarsWithCalDAV#Connecting_with_Sunbird/Iceowl_0.9

--
Étienne Labaume