[Enigmail] OpenPGP Card: fundamental problems

[Stefan X]

I found out that I don't have gnupg-agent installed. So I am wondering
why Enigmail executes gnupg with the --use-agent argument. It seems that
Seahorse (which is installed by default in Ubuntu) simulates a
gnupg-agent. At least after killing the seahorse background process the
error message (when decrypting the message) changes to the following:

OpenPGP Security Info

Error - secret key needed to decrypt message

gpg command line and output:
/usr/bin/gpg --charset utf8  --batch --no-tty --status-fd 2 -d --use-agent
can't connect to `/tmp/seahorse-VSOdb4/S.gpg-agent': No such file or
directory
gpg: detected reader `Gemplus GemPC Twin 00 00'
can't connect to `/tmp/seahorse-VSOdb4/S.gpg-agent': No such file or
directory
gpg: Verbindung zu '/tmp/seahorse-VSOdb4/S.gpg-agent' kann nicht
aufgebaut werden: connect failed
gpg: Passwortsatz kann im Batchmodus nicht abgefragt werden
gpg: PIN-Callback meldete Fehler: Allgemeiner Fehler

I suspect that Seahorse is not able to handle smartcards. If so it may
be a solution to use gpg-agent instead. Unfortunately I didn't figured
out how to do this. Also please note that Seahorse depends of the
important package ubuntu-desktop so I would prefer avoiding its removal.

Any idea?

Regards
Stefan

Stefan X schrieb:
> Hi Olav,
> the funny thing is, "use GPG agent" is already DISABLED! What to do?
> 
> Regards
> Stefan
> 
> Olav Seyfarth schrieb:
>> Hi Stefan,
>>
>>> 2009-03-08 15:38:18.802 enigmail.js: detectGpgAgent:
>>> GPG_AGENT_INFO='/tmp/seahorse-axoWSa/S.gpg-agent:5551:1'
>> Could you please disable "use GPG agent" in OpenPGP advanced settings and
>> try again? I suspect it's a problem between GnuPG 1.4.9 and seahorse. You
>> might also try using GnuPG 2.x and reenable "use GPG agent".
>>
>> Olav
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