i have a problem with gpg-agent when using it with a yubikey neo. after
some time gpg-agent refuses to sign any data and so any ssh login with
my key stored on the yubikey will fail. the gpg-agent log shows the
2015-05-30 13:49:36 gpg-agent error accessing card: Conflicting
2015-05-30 13:49:36 gpg-agent smartcard signing failed:
2015-05-30 13:49:38 gpg-agent error getting default authentication
keyID of card: Conflicting use
the command to start gpg-agent on KDE login is:
eval "$(/usr/bin/gpg-agent --daemon --enable-ssh-support --log-file
i haven't found the exact circumstances when it happens but its more
likely to happen when the yubikey was plugged off and re-inserted, but
it also happens without pull off from time to time. a restart of
gpg-agent fixes the issue. it also often happens after i've pressed the
yubikey button to generate an OTP but not always.
gnupg version is 2.0.27-r1 running on sabayon linux.
when using the same yubikey on my ubuntu 14.04 notebook at work i never
had this problem.
thanks for any help.
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