Hi, I want to migrate my OS from Ubuntu to Arch. When I insert the Yubikey, both Windows and Ubuntu can recognize the smartcard and print the status. However, I found that the pageant is not working on Arch.

In Windows powershell:

In Ubuntu:

In Arch:

I then check whether socat is running and found that it only run on the first-executed wsl instance. If I run Ubuntu first then socat won't run properly on Arch. Although I did try to run Arch before Ubuntu but still have no luck. However, I noticed there is a different behavior between these two OS.

When socat successfully run on Ubuntu, only the socat-rendered gpg-agent is found in jobs:

When socat run on Arch. it would behave like in Ubuntu in the beginning:

However, when I checked the smartcard by gpg --card-status, it take a few second and shows an error "can't connect to the agent: End of file"
When I ran it second time it became "No such device":

Later I checked the jobs with htop again and found that the standard gpg-agent is up:

I suspect that should be the reason which cause the pageant failed on Arch.
Another possibility would be the fish shell since I'm using fish in Arch and bash in Ubuntu, I'll check whether the pageant can work on fish on Ubuntu or bash on Arch.