I have a Lenovo ThinkPad T-430 laptop that has a fingerprint scanner, and I use fprint for all the authentications.
Whenever I open my laptop lid, after waking it up I'm presented to slide my finger along the scanner. I do it over and over again and nothing will happen until it finally shows the text field to enter it.
Anyone know how I can fix this?
- I've noticed that the scanner light is lit whenever it does work, so I think it's just not initializing from suspend.
- Typing in the wrong password once the text field shows up activates the scanner and it works perfectly.
- Locking the computer myself doesn't keep the scanner from not working, (I had made a mistake earlier making me think something was wrong)
- Letting the computer go into suspend without closing the lid will cause fprint to time out.
The output of
lsusb gives me:
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 005: ID 04f2:b2da Chicony Electronics Co., Ltd thinkpad t430s camera Bus 001 Device 004: ID 0a5c:21e6 Broadcom Corp. BCM20702 Bluetooth 4.0 [ThinkPad] Bus 001 Device 003: ID 147e:2020 Upek TouchChip Fingerprint Coprocessor (WBF advanced mode) Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Attempted to reset USB devices by the following
"usbreset.c" solution I get the same errors like
./usbreset: command not found
like another user. I've tried multiple times to no avail. Made sure I followed the instructions exactly.
sudo sh -c "echo 0 > /sys/bus/usb/devices/1-1.3/authorized"
sudo sh -c "echo 1 > /sys/bus/usb/devices/1-1.3/authorized"
It did work in resetting the fingerprint scanner, but did not solve the issue of fprint not initializing after wake up.