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7378
March 26th, 2011 11:00
Fingerprint reader stopped working on wakeup
After a security patch - not sure it is related - my fingerprint reader stopped working when the laptop come out sleep - wakened after 10 minutes of inactivity.
OS Name Microsoft Windows 7 Professional
Version 6.1.7600 Build 7600
OS Manufacturer Microsoft Corporation
System Manufacturer Dell Inc.
System Model Precision M4400
System Type x64-based PC
Processor Intel(R) Core(TM)2 Extreme CPU Q9300 @ 2.53GHz, 2535 Mhz, 4 Core(s), 4 Logical Processor(s)
BIOS Version/Date Dell Inc. A16, 8/28/2009
SMBIOS Version 2.4
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saraman007
1 Message
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March 26th, 2011 11:00
Sometimes when my Dell Vostro 3500 have been in sleep mode and then wake up, the fingerprint reader doesn't work. I also notice the cooling fan runs high and the process "DpHostW.exe" that is used for the biometric hardware use 25% CPU.
I kill the process and the CPU load goes down to normal levels again.
I haven't found any updates whatsoever on Dell's support pages or Digital Personas support pages (the vendor behind the process). Maybe it's just bad written software that can't handle the sleep mode?
I use Window 7, 32-bit with latest updates.
Any ideas or similar experience?
(Any suggestions like "re-install" the software, Windows etc is not of interest, thanks...)
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