Alas, no luck:
wim@linux:~> systemctl status pcscd
● pcscd.service - PC/SC Smart Card Daemon
Loaded: loaded (/usr/lib/systemd/system/pcscd.service; indirect; preset: disabled)
Active: active (running) since Sat 2025-03-29 18:22:56 CET; 45s ago
Invocation: bc492ba693644e1dac29310dcba27412
TriggeredBy: ● pcscd.socket
Docs: man:pcscd(8)
Main PID: 3151 (pcscd)
Tasks: 6 (limit: 18979)
CPU: 78ms
CGroup: /system.slice/pcscd.service
└─3151 /usr/sbin/pcscd --foreground
wim@linux:~> flatpak run com.yubico.yubioath
(authenticator:2): Gdk-CRITICAL **: 18:24:35.586: gdk_wayland_display_get_monitor_at_window: assertion 'GDK_IS_WAYLAND_WINDOW (window)' failed
(authenticator:2): Gdk-CRITICAL **: 18:24:35.586: gdk_window_get_origin: assertion 'GDK_IS_WINDOW (window)' failed
** (authenticator:2): CRITICAL **: 18:24:35.586: FlutterEngineDisplayId fl_display_monitor_get_display_id(FlDisplayMonitor *, GdkMonitor *): assertion 'FL_IS_DISPLAY_MONITOR(self)' failed
Gdk-Message: 18:24:35.649: Unable to load from the cursor theme
18:24:35.674 [desktop.init] INFO: Logging initialized, outputting to stderr
18:24:35.677 [desktop.init] INFO: Window hidden on startup: false
18:24:35.677 [desktop.init] INFO: Starting Helper subprocess: /app/bin/helper/authenticator-helper
18:24:35.678 [main] INFO: Running Yubico Authenticator...
{app_version: 7.2.0, dart: 3.7.2 (stable) (Tue Mar 11 04:27:50 2025 -0700) on "linux_x64", os: linux, os_version: Linux 6.13.5-1-default #1 SMP PREEMPT_DYNAMIC Fri Feb 28 07:06:44 UTC 2025 (ff9b7ff)}
18:24:35.683 [desktop.init] INFO: Helper process started
(authenticator:2): Gtk-CRITICAL **: 18:24:35.859: gtk_widget_get_scale_factor: assertion 'GTK_IS_WIDGET (widget)' failed
18:24:36.292 [helper.ykman.logging] INFO: Logging at level: INFO
18:24:36.292 [helper.helper.device] INFO: Log level set to: INFO
18:24:36.293 [desktop.init] INFO: Helper log level set
18:24:36.722 [desktop.devices] INFO: USB state change
{"data":{"state":7516690338208129056,"pids":{"1031":1}},"actions":["get","scan"],"children":{"12024394":{"pid":1031,"name":"YubiKey 5 NFC","serial":12024394}}}
18:24:36.724 [helper.helper.device] WARNING: Unable to connect via <class 'yubikit.core.smartcard.SmartCardConnection'>
Traceback (most recent call last):
File "helper/device.py", line 353, in _refresh_data
File "ykman/device.py", line 257, in open_connection
ValueError: Unsupported Connection type
18:24:36.775 [desktop.devices] INFO: USB state updated, unaccounted for: {}
18:24:36.871 [helper.helper.device] WARNING: Error opening connection
Traceback (most recent call last):
File "helper/device.py", line 364, in ccid
File "helper/device.py", line 334, in _create_connection
File "ykman/device.py", line 257, in open_connection
ValueError: Unsupported Connection type
18:24:36.871 [helper] INFO: Attempting recovery on "state-reset"
18:24:37.147 [helper.helper.device] WARNING: Unable to connect via <class 'yubikit.core.smartcard.SmartCardConnection'>
Traceback (most recent call last):
File "helper/device.py", line 353, in _refresh_data
File "ykman/device.py", line 257, in open_connection
ValueError: Unsupported Connection type
18:24:37.198 [helper.helper.device] WARNING: Error opening connection
Traceback (most recent call last):
File "helper/device.py", line 364, in ccid
File "helper/device.py", line 334, in _create_connection
File "ykman/device.py", line 257, in open_connection
ValueError: Unsupported Connection type
18:24:37.199 [helper] INFO: Attempting recovery on "state-reset"
18:24:37.473 [helper.helper.device] WARNING: Unable to connect via <class 'yubikit.core.smartcard.SmartCardConnection'>
Traceback (most recent call last):
File "helper/device.py", line 353, in _refresh_data
File "ykman/device.py", line 257, in open_connection
ValueError: Unsupported Connection type
18:24:37.525 [helper.helper.device] WARNING: Error opening connection
Traceback (most recent call last):
File "helper/device.py", line 364, in ccid
File "helper/device.py", line 334, in _create_connection
File "ykman/device.py", line 257, in open_connection
ValueError: Unsupported Connection type
18:24:37.800 [helper.helper.device] WARNING: Unable to connect via <class 'yubikit.core.smartcard.SmartCardConnection'>
Traceback (most recent call last):
File "helper/device.py", line 353, in _refresh_data
File "ykman/device.py", line 257, in open_connection
ValueError: Unsupported Connection type
18:24:37.848 [helper.helper.device] WARNING: Error opening connection
Traceback (most recent call last):
File "helper/device.py", line 364, in ccid
File "helper/device.py", line 334, in _create_connection
File "ykman/device.py", line 257, in open_connection
ValueError: Unsupported Connection type
18:24:37.851 [helper.helper.device] WARNING: Error opening connection
Traceback (most recent call last):
File "helper/device.py", line 364, in ccid
File "helper/device.py", line 334, in _create_connection
File "ykman/device.py", line 257, in open_connection
ValueError: Unsupported Connection type
18:24:37.853 [helper.helper.device] WARNING: Error opening connection
Traceback (most recent call last):
File "helper/device.py", line 364, in ccid
File "helper/device.py", line 334, in _create_connection
File "ykman/device.py", line 257, in open_connection
ValueError: Unsupported Connection type
18:24:50.154 [helper.helper.device] WARNING: Unable to connect via <class 'yubikit.core.smartcard.SmartCardConnection'>
Traceback (most recent call last):
File "helper/device.py", line 353, in _refresh_data
File "ykman/device.py", line 257, in open_connection
ValueError: Unsupported Connection type
embedder.cc (2519): 'FlutterEngineRemoveView' returned 'kInvalidArguments'. Remove view info was invalid. The implicit view cannot be removed.
** (authenticator:2): WARNING **: 18:24:51.730: Attempted to set message handler on an FlBinaryMessenger without an engine
** (authenticator:2): WARNING **: 18:24:51.730: Attempted to set message handler on an FlBinaryMessenger without an engine