pinentry fails with gpg-agent for ssh, but works for gpg

Werner Koch wk at
Thu Jan 25 12:03:59 CET 2018

On Thu, 25 Jan 2018 09:39, guru at said:

> $ ssh some-host
> fails to ask for the PIN.

That is because ssh has no mechanism to tell the ssh-agent (in this case
gpg-agent) the DISPLAY or tty to use for pinentry.  This the pinentry
pops up on the tty or X server gpg-agent was initially started.


  gpg-connect-agent updatestartuptty /bye

on your current tty tells gpg-agent to updates its default tty and
DISPLAY to the one where you run gpg-connect-agent.  ssh will then work
again.  After you switch back to another terminal you need to do the

I have to use it always when I move from my standalone laptop to the
Xserver connected to that laptop.  It is a bit annoying and the only
clean solution would be to enance the the ssh-agent protocol and
implement that in both, ssh and gpg-agent.



Die Gedanken sind frei.  Ausnahmen regelt ein Bundesgesetz.
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