I can confirm this issue occurs on my HP Pavilion dv6 laptop:
Jan 2 19:48:19 speedy fingerprint-gui[18193]: Started.
Jan 2 19:48:19 speedy fingerprint-gui[18193]: Proprietary lib "libbsapi.so.4.3" loaded.
Jan 2 19:48:19 speedy fingerprint-gui[18193]: Libfprint initialized.
Jan 2 19:48:19 speedy fingerprint-gui[18193]: Libbsapi initialized.
Jan 2 19:48:19 speedy fingerprint-gui[18193]: Devices initialized.
Jan 2 19:48:19 speedy fingerprint-gui[18193]: Found USB device: Linux Foundation/2.0 root hub.
Jan 2 19:48:19 speedy fingerprint-gui[18193]: Found USB device: Ralink Technology, Corp./unknown device.
Jan 2 19:48:19 speedy fingerprint-gui[18193]: Found USB device: Linux Foundation/1.1 root hub.
Jan 2 19:48:19 speedy fingerprint-gui[18193]: Found USB device: Validity Sensors, Inc./VFS301 Fingerprint Reader.
Jan 2 19:48:19 speedy fingerprint-gui[18193]: Found USB device: Linux Foundation/1.1 root hub.
Jan 2 19:48:19 speedy fingerprint-gui[18193]: Found USB device: PNY/unknown device.
Jan 2 19:48:19 speedy fingerprint-gui[18193]: Found USB device: Linux Foundation/2.0 root hub.
Jan 2 19:48:19 speedy fingerprint-gui[18193]: Found USB device: Logitech, Inc./Unifying Receiver.
Jan 2 19:48:19 speedy fingerprint-gui[18193]: Found USB device: Linux Foundation/1.1 root hub.
Jan 2 19:48:19 speedy fingerprint-gui[18193]: Found USB device: Realtek Semiconductor Corp./unknown device.
Jan 2 19:48:19 speedy fingerprint-gui[18193]: Found USB device: Linux Foundation/2.0 root hub.
Jan 2 19:48:19 speedy fingerprint-gui[18193]: Found USB device: Linux Foundation/1.1 root hub.
Jan 2 19:48:19 speedy fingerprint-gui[18193]: No devices found by libbsapi.
Jan 2 19:48:19 speedy fingerprint-gui[18193]: initializing libfprint device (vend/prod) 0x138a/0x5, driver: vfs301
Jan 2 19:48:19 speedy fingerprint-gui[18193]: Added vfs301.
Jan 2 19:48:19 speedy fingerprint-gui[18193]: Current device set to 0 -- vfs301.
Jan 2 19:48:19 speedy fingerprint-gui[18193]: Current device set to 0 -- vfs301.
Jan 2 19:48:26 speedy fingerprint-gui[18193]: Need 1 stages.
Jan 2 19:48:26 speedy fingerprint-gui[18193]: Please Swipe Your Right Index.
Jan 2 19:48:26 speedy fingerprint-gui[18193]: Swipe finger at vfs301.
Jan 2 19:48:26 speedy fingerprint-gui[18193]: Thread started.
Jan 2 19:48:26 speedy fingerprint-gui[18193]: Starting acquire.
Jan 2 19:48:26 speedy fingerprint-gui[18193]: Need 1 stages.
Jan 2 19:48:26 speedy fingerprint-gui[18193]: Acquire stage 0 waiting...
Jan 2 19:48:30 speedy fingerprint-gui[18193]: Acquire: have image.
Jan 2 19:48:30 speedy fingerprint-gui[18193]: Acquire result 3.
Jan 2 19:48:30 speedy fingerprint-gui[18193]: FP_ENROLL_PASS.
Jan 2 19:48:30 speedy fingerprint-gui[18193]: Acquire stage 0 OK.
Jan 2 19:48:30 speedy fingerprint-gui[18193]: Need 2 stages.
Jan 2 19:48:30 speedy fingerprint-gui[18193]: Acquire stage 1 waiting...
I can confirm this issue occurs on my HP Pavilion dv6 laptop:
Jan 2 19:48:19 speedy fingerprint- gui[18193] : Started. gui[18193] : Proprietary lib "libbsapi.so.4.3" loaded. gui[18193] : Libfprint initialized. gui[18193] : Libbsapi initialized. gui[18193] : Devices initialized. gui[18193] : Found USB device: Linux Foundation/2.0 root hub. gui[18193] : Found USB device: Ralink Technology, Corp./unknown device. gui[18193] : Found USB device: Linux Foundation/1.1 root hub. gui[18193] : Found USB device: Validity Sensors, Inc./VFS301 Fingerprint Reader. gui[18193] : Found USB device: Linux Foundation/1.1 root hub. gui[18193] : Found USB device: PNY/unknown device. gui[18193] : Found USB device: Linux Foundation/2.0 root hub. gui[18193] : Found USB device: Logitech, Inc./Unifying Receiver. gui[18193] : Found USB device: Linux Foundation/1.1 root hub. gui[18193] : Found USB device: Realtek Semiconductor Corp./unknown device. gui[18193] : Found USB device: Linux Foundation/2.0 root hub. gui[18193] : Found USB device: Linux Foundation/1.1 root hub. gui[18193] : No devices found by libbsapi. gui[18193] : initializing libfprint device (vend/prod) 0x138a/0x5, driver: vfs301 gui[18193] : Added vfs301. gui[18193] : Current device set to 0 -- vfs301. gui[18193] : Current device set to 0 -- vfs301. gui[18193] : Need 1 stages. gui[18193] : Please Swipe Your Right Index. gui[18193] : Swipe finger at vfs301. gui[18193] : Thread started. gui[18193] : Starting acquire. gui[18193] : Need 1 stages. gui[18193] : Acquire stage 0 waiting... gui[18193] : Acquire: have image. gui[18193] : Acquire result 3. gui[18193] : FP_ENROLL_PASS. gui[18193] : Acquire stage 0 OK. gui[18193] : Need 2 stages. gui[18193] : Acquire stage 1 waiting...
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