We are generating ics files for events with the php library ZContent/icalendar, so far, it works.
Nevertheless, when using the file with Google calendar, the event is displayed like this:
How to set a value for "Unknown Organizer*"? (Qui) (Who)
When looking at the specifications, there is an ORGANIZER property, but it doesn't seem linked to events but to VTODO and VJOURNAL objects.
Or does it expects an email? Not only a name?