08-28-2009 02:11 AM
I had configured my fingure print device a long back and was working fine. all of a sudden it has some issue's with it. while at the windows logon screen. i always see the device is not detected.
If i boot the notebook and reboot it again, i find the device detected and working fine. This is real strange observation.
let me know how to debug/ work out this issue.
Has any one faced the same issue and have a work around for this.
Thanks in advance
08-30-2009 07:12 AM
Assuming you have the latest BIOS and latest compatible version of ThinkVantage Fingerprint software, we've witnessed intermittent issues when users begin tweak their BIOS and enable non existent parallel ports or tamper with the PCI management settings, the issue with the reader malfunctioning then woking after a restart has been caused XP detecting previously disabled serial ports and InfraRed reader that actually conflicts with the internal biometric device.
Rebooting can but now always reenable the fingerprint reader since XP realizes the conflict and "soft" disables the newly BIOS enabled IR, SerialPort or Parallel port.
A quick troubleshooting method is reset the BIOS to all defaults while taking note of whether the IR, Serial, or Parallel port is enabled in your default BIOS profile then reboot.
This method works for us 100% of the time since we've never experienced a failed finger sensor in our inventory and resetting the BIOS along with wagging our finger at the end user has effectively solved this issue.