当我尝试注册手指时，我新安装的指纹 gui 卡住了。第一次扫描会出现绿色勾号，但当程序要求我重复此步骤时，扫描仪不会扫描它。通常扫描仪在读取时会闪烁绿色，但第一次滑动后不会闪烁... 使用的扫描仪来自 Thinkpad T440，
ID 138a:0017 Validity Sensors, Inc. Fingerprint Reader
Ubuntu 版本是 15.10，系统是最新的。以下是详细的错误日志：
Jan 13 13:19:14 Wubu fingerprint-gui[3224]: Started.
Jan 13 13:19:14 Wubu fingerprint-gui[3224]: Proprietary lib "libbsapi.so.4.3" not found in library path.
Jan 13 13:19:14 Wubu fingerprint-gui[3224]: Libfprint initialized.
Jan 13 13:19:14 Wubu fingerprint-gui[3224]: Devices initialized.
Jan 13 13:19:14 Wubu fingerprint-gui[3224]: Found USB device: Intel Corp./unknown device.
Jan 13 13:19:14 Wubu fingerprint-gui[3224]: Found USB device: Linux Foundation/2.0 root hub.
Jan 13 13:19:14 Wubu fingerprint-gui[3224]: Found USB device: Linux Foundation/3.0 root hub.
Jan 13 13:19:14 Wubu fingerprint-gui[3224]: Found USB device: Lite-On Technology Corp./unknown device.
Jan 13 13:19:14 Wubu fingerprint-gui[3224]: Found USB device: Intel Corp./unknown device.
Jan 13 13:19:14 Wubu fingerprint-gui[3224]: Found USB device: Validity Sensors, Inc./unknown device.
Jan 13 13:19:14 Wubu fingerprint-gui[3224]: Found USB device: Linux Foundation/2.0 root hub.
Jan 13 13:19:14 Wubu fingerprint-gui[3224]: initializing libfprint device (vend/prod) 0x138a/0x17, driver: vfs5011
Jan 13 13:19:14 Wubu fingerprint-gui[3224]: Added vfs5011.
Jan 13 13:19:14 Wubu fingerprint-gui[3224]: Current device set to 0 -- vfs5011.
Jan 13 13:19:14 Wubu fingerprint-gui[3224]: Current device set to 0 -- vfs5011.
Jan 13 13:19:19 Wubu fingerprint-gui[3224]: Need 1 stages.
Jan 13 13:19:19 Wubu fingerprint-gui[3224]: Please Swipe Your Right Index.
Jan 13 13:19:19 Wubu fingerprint-gui[3224]: Swipe finger at vfs5011.
Jan 13 13:19:19 Wubu fingerprint-gui[3224]: Thread started.
Jan 13 13:19:19 Wubu fingerprint-gui[3224]: Starting acquire.
Jan 13 13:19:20 Wubu fingerprint-gui[3224]: Need 1 stages.
Jan 13 13:19:20 Wubu fingerprint-gui[3224]: Acquire stage 0 waiting...
Jan 13 13:19:22 Wubu fingerprint-gui[3224]: Acquire: have image.
Jan 13 13:19:22 Wubu fingerprint-gui[3224]: Acquire result 100.
Jan 13 13:19:22 Wubu fingerprint-gui[3224]: FP_ENROLL_RETRY.
Jan 13 13:19:22 Wubu fingerprint-gui[3224]: Acquire stage 0 try again...
Jan 13 13:19:22 Wubu fingerprint-gui[3224]: Acquire stage 0 waiting...
Jan 13 13:19:23 Wubu fingerprint-gui[3224]: Acquire failed with error -22.
Jan 13 13:19:23 Wubu fingerprint-gui[3224]: Acquire stage 0 waiting...
Jan 13 13:19:25 Wubu fingerprint-gui[3224]: Acquire failed with error -22.
Jan 13 13:19:25 Wubu fingerprint-gui[3224]: Acquire stage 0 waiting...
Jan 13 13:19:27 Wubu fingerprint-gui[3224]: Acquire failed with error -22.
Jan 13 13:19:27 Wubu fingerprint-gui[3224]: Acquire stage 0 waiting...
Jan 13 13:19:27 Wubu fingerprint-gui[3224]: Stopping device...
Jan 13 13:19:27 Wubu fingerprint-gui[3224]: FP_DEV_STOP.
Jan 13 13:19:28 Wubu fingerprint-gui[3224]: FP_ASYNC_ENROLL_STOP.
Jan 13 13:19:29 Wubu fingerprint-gui[3224]: FP_DEV_CLOSE.
Jan 13 13:19:30 Wubu fingerprint-gui[3224]: Stopped.
Jan 13 13:19:30 Wubu fingerprint-gui[3224]: qApp exit.
Jan 13 13:19:30 Wubu fingerprint-gui[3224]: Devices released.
问题出在哪里，或者更具体地说错误 -22 是什么意思？我还没有找到指纹指南的任何错误->含义列表...
程序的其余部分似乎可以工作，指纹识别器在需要身份验证时总是闪烁，并且只显示无法打开存储指纹的文件夹的错误（因为没有成功存储手指，所以没有这样的文件夹......）
ingerprint-helper[3182]: Could not open /var/lib/fingerprint-gui/wucke/vfs5011/
所以，感谢您的任何提示、建议或忠告......
答案1
您试过 Fprint 吗？ https://launchpad.net/~fingerprint/+archive/ubuntu/fprint
我以前尝试过指纹识别时也遇到过同样的问题。现在我使用 Fprint，它可以正常工作。