[EXT] Re: gnupg and ssh interaction somehow broken (card reader with pinpad)

[Ángel]

On 2021-03-17 at 21:16 +0100, Andreas K. Huettel wrote:
> 
> OK now it's getting very strange. 
> 
> On a second PC with the same reader hardware model, the same gpg
> version, and 
> the same chipcard, things work perfectly fine.
> 
> Could this be a hardware defect (i.e., reader was too long in the
> sun)?

I don't think so. You report that the first program which uses the card
(either gpg or ssh) "keeps" it, and the other is unable to (btw, would 
e.g. a second sign work?). This looks like the first one locks use of
the card.
May gpg and ssh be launchihng separete scdaemon instances? Does it help
if you use --card-timeout on scdaemon config?