Daemon randomly dying on Thinkpad T480

[repomansez]

Sometimes I lock my computer and when I come back the fingerprint sensor stops working. I see nothing on dmesg and lsusb still lists the device, but the python3-validity daemon dies, saying the device might have been disconnected (restarting the daemon fixes it):

○ python3-validity.service - python-validity driver dbus service Loaded: loaded (/usr/lib/systemd/system/python3-validity.service; disabled; preset: disabled) Active: inactive (dead)

Jun 03 14:13:26 kubo dbus-service[1227]: ^^^ Jun 03 14:13:26 kubo dbus-service[1227]: File "/usr/lib/python3.12/site-packages/usb/backend/libusb1.py", line 837, in bulk_write Jun 03 14:13:26 kubo dbus-service[1227]: return self.__write(self.lib.libusb_bulk_transfer, Jun 03 14:13:26 kubo dbus-service[1227]: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Jun 03 14:13:26 kubo dbus-service[1227]: File "/usr/lib/python3.12/site-packages/usb/backend/libusb1.py", line 938, in __write Jun 03 14:13:26 kubo dbus-service[1227]: _check(retval) Jun 03 14:13:26 kubo dbus-service[1227]: File "/usr/lib/python3.12/site-packages/usb/backend/libusb1.py", line 604, in _check Jun 03 14:13:26 kubo dbus-service[1227]: raise USBError(_strerror(ret), ret, _libusb_errno[ret]) Jun 03 14:13:26 kubo dbus-service[1227]: usb.core.USBError: [Errno 19] No such device (it may have been disconnected) Jun 03 14:13:26 kubo systemd[1]: python3-validity.service: Deactivated successfully.