[Bug 2089141] Re: Opensc smart cards do not work in the snapped browsers

[Benjamin Davis]

Hmmm...
It seems the pcscd unit is running, but it is also spamming some kind of error into the system logs. Very interesting. I'll have to dig at the error message a bit more, but that looks like a solid potential lead.

$ systemctl status pcscd
● pcscd.service - PC/SC Smart Card Daemon
     Loaded: loaded (/usr/lib/systemd/system/pcscd.service; indirect; preset: enabled)
     Active: active (running) since Tue 2025-09-16 23:38:30 MDT; 22h ago
 Invocation: 33a96b1ea7c84ffaa73e794aee06f808
TriggeredBy: ● pcscd.socket
       Docs: man:pcscd(8)
   Main PID: 5028 (pcscd)
      Tasks: 10 (limit: 74802)
     Memory: 3.8M (peak: 5.2M)
        CPU: 938ms
     CGroup: /system.slice/pcscd.service
             └─5028 /usr/sbin/pcscd --foreground --auto-exit

Sep 17 22:12:59 <hostname> pcscd[5028]: 00000002 ../src/winscard_svc.c:408:ContextThread() Server protocol is 4:5
Sep 17 22:13:05 <hostname> pcscd[5028]: 06651108 ../src/winscard_svc.c:404:ContextThread() Communication protocol mismatch!
Sep 17 22:13:05 <hostname> pcscd[5028]: 00000008 ../src/winscard_svc.c:406:ContextThread() Client protocol is 4:4
Sep 17 22:13:05 <hostname> pcscd[5028]: 00000002 ../src/winscard_svc.c:408:ContextThread() Server protocol is 4:5
Sep 17 22:15:53 <hostname> pcscd[5028]: 99999999 ../src/winscard_svc.c:404:ContextThread() Communication protocol mismatch!
Sep 17 22:15:53 <hostname> pcscd[5028]: 00000008 ../src/winscard_svc.c:406:ContextThread() Client protocol is 4:4
Sep 17 22:15:53 <hostname> pcscd[5028]: 00000002 ../src/winscard_svc.c:408:ContextThread() Server protocol is 4:5
Sep 17 22:16:00 <hostname> pcscd[5028]: 07766588 ../src/winscard_svc.c:404:ContextThread() Communication protocol mismatch!
Sep 17 22:16:00 <hostname> pcscd[5028]: 00000009 ../src/winscard_svc.c:406:ContextThread() Client protocol is 4:4
Sep 17 22:16:00 <hostname> pcscd[5028]: 00000003 ../src/winscard_svc.c:408:ContextThread() Server protocol is 4:5

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Title:
  Opensc smart cards do not work in the snapped browsers

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