Hi Daniel,
> how are you running this? you said earlier this is rxvt-unicode,
> but inside of what kind of graphical environment? Can do you know
> how gpg-agent was started?
I'm using dwm (6.1-3 amd64)
> How is gpg-agent started? What happens if you kill gpg-agent and
> then try the decryption command again immediately?
>
> gpgconf --kill gpg-agent
> gpg --decrypt FILENAME
gpgconf --kill gpg-agent
gpg --decrypt file.gpg
gpg: encrypted with 2048-bit RSA key, ID 3A2B8EB7865452A1, created
2014-02-28
"Paul Rogé <[email protected]>"
gpg: public key decryption failed: Operation cancelled
gpg: decryption failed: No secret key