Ah ha! The large contact photo size was indeed the culprit!

Yes other contacts with photos had been successfully synced. I've not
looked at the size of those files but now that I edited the missing
contacts to show no image, I assume that the former contact files had
images of an acceptable size.

Thanks for your review of my log and for your helpful insight, Patrick!

On Mon, 2011-04-18 at 10:14 +0200, Patrick Ohly wrote:

> * On Fr, 2011-04-15 at 06:59 +0100, Hevï Guy wrote:
> > Once I finally set-up Syncevolution 1.1.1-2 so that I could at least
> > do a one-way refresh of "Contacts" to  my Nokia N86 8MP, I found that
> > certain contacts would not sync; The resulting comment in the GUI was:
> > "There were 22 remote rejections". Has anybody else experienced this?
> > More importantly, has anybody found a solution?
> 
> Hevï sent me his log files. There were two problems:
> 
>      1. Some contacts had photos that were so large that the contact
>         exceeded the maximum contact size supported by the phone (for
>         example, 206653 bytes where only 102400 = 100KB allowed).
>      2. Other contacts with photo are sent, but the phone reports an
>         error (415 status).
> 
> Hevï, were other contacts with photos transferred? The log only contains
> the problematic contacts, so I cannot tell.
> 
> Do you see a relevant difference between a contact that was transferred
> with photo and one which wasn't? Photo size or encoding (PNG vs. JPG,
> for example)? If unsure, please send me the saved vCard of a contact
> which was transferred okay.
> 
> The underlying question is this:
>       * Should PHOTO data be transcoded as part of syncing? This is
>         necessary at least for case 1 above and might also help with
>         case 2.
> 
> It could be added, but that leads to further questions:
>       * How does SyncEvolution decide which kind of PHOTO data will be
>         accepted by the peer? Resolution, format, ...
>       * If a photo was transcoded, how will SyncEvolution deal with an
>         updated photo sent by the peer?
>              A. Overwrite photo locally: allows updating photos on the
>                 peer, but implies that a potentially higher resolution
>                 version of the same photo gets overwritten when only
>                 some other properties were modified.
>              B. Always preserve local photo data: adding a photo on the
>                 peer would be possible, but not updating it.
> 
> Possible answers:
>       * Only transcode if it is detected during a sync that photos had
>         problems.
>       * Hard-code certain profiles, match them to DevInf reported by
>         device (based on max item size, for example).
>       * Preserve local photo data if transcoding was necessary.
> 
> 
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