I am looking for a functional CalDAV client for Ubuntu, preferably open source. I was originally looking for one that works on 14.04, and now on 16.04.
Following the advice of some commentators below, I gave another try to these programmes on Ubuntu 16.04. There are clear improvements, but it still is not possible to use a CalDAV calendar on Ubuntu.
The most important hindrances to its usage on Ubuntu 14.04 have been fixed:
- It now shows in the Lens.
- It can be started with the "dummy" e-mail account.
Evolution comes with a good Help package that explains in detail the configuration of a CalDAV calendar. Although easy to set up, the CalDAV connection fails repeatedly and the calendar contents are never displayed. Naturally, it is neither possible to create new events. An error message is displayed that does not help much:
Unable to connect to 'Calendar': Cannot open calendar: Unexpected HTTP status code 405 returned (Not Allowed) for URI: https://email@example.com/
Other programmes connect to the server with the exact same credentials, no clue why Evolution fails.
Its problems have been fixed and now functions almost entirely. It is able to register my CalDAV account, fetch all my calendars and synchronise regularly. It even allows me to use my public SSH key instead of requiring my password.
However, Korganiser is programmed to work exclusively in the UTC time zone. I happen to live elsewhere, therefore all its functionality becomes useless when a new event created for 10h00 appears in all other devices at a different time...
Once more: are there any other functional alternatives to use and synchronise a CalDAV calendar on Ubuntu?
Previous tries on Ubuntu 14.04
These are the programmes from the Software Centre I tried so far, none of which functions on Ubuntu 14.04:
Evolution - it does not show in the Lens after being installed:
KOrganiser - displays an error message; the menus remain active but produce no results.
Calendar - displays a cryptic error message and exits.
What other clients exist out there?