Ubuntu – Fingerprint reader in Ubuntu 17.04 on Dell XPS 15 2017

dellfingerprint readerxps

Is it possible to enable the fingerprint reader in Ubuntu 17.04 on a Dell XPS 15 9560 (2017)? How do I do that? I tested Fingerprint GUI, but it says "No Devices Found".

Edit:

➜  ~ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 04f3:24a0 Elan Microelectronics Corp. 
Bus 001 Device 003: ID 138a:0091 Validity Sensors, Inc. 
Bus 001 Device 002: ID 0cf3:e300 Atheros Communications, Inc. 
Bus 001 Device 005: ID 0c45:6713 Microdia 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

➜  ~ lspci
00:00.0 Host bridge: Intel Corporation Device 5910 (rev 05)
00:01.0 PCI bridge: Intel Corporation Skylake PCIe Controller (x16) (rev 05)
00:02.0 VGA compatible controller: Intel Corporation Device 591b (rev 04)
00:04.0 Signal processing controller: Intel Corporation Skylake Processor Thermal Subsystem (rev 05)
00:14.0 USB controller: Intel Corporation Sunrise Point-H USB 3.0 xHCI Controller (rev 31)
00:14.2 Signal processing controller: Intel Corporation Sunrise Point-H Thermal subsystem (rev 31)
00:15.0 Signal processing controller: Intel Corporation Sunrise Point-H Serial IO I2C Controller #0 (rev 31)
00:15.1 Signal processing controller: Intel Corporation Sunrise Point-H Serial IO I2C Controller #1 (rev 31)
00:16.0 Communication controller: Intel Corporation Sunrise Point-H CSME HECI #1 (rev 31)
00:17.0 SATA controller: Intel Corporation Sunrise Point-H SATA Controller [AHCI mode] (rev 31)
00:1c.0 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #1 (rev f1)
00:1c.1 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #2 (rev f1)
00:1d.0 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #9 (rev f1)
00:1d.4 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #13 (rev f1)
00:1d.6 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #15 (rev f1)
00:1f.0 ISA bridge: Intel Corporation Sunrise Point-H LPC Controller (rev 31)
00:1f.2 Memory controller: Intel Corporation Sunrise Point-H PMC (rev 31)
00:1f.3 Audio device: Intel Corporation Device a171 (rev 31)
00:1f.4 SMBus: Intel Corporation Sunrise Point-H SMBus (rev 31)
01:00.0 3D controller: NVIDIA Corporation GP107M [GeForce GTX 1050 Mobile] (rev a1)
02:00.0 Network controller: Qualcomm Atheros QCA6174 802.11ac Wireless Network Adapter (rev 32)
03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS525A PCI Express Card Reader (rev 01)
04:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller SM961/PM961

Best Answer

Typing this on an XPS 9560, no support yet for the fingerprint reader under Linux.

Here's a project on Github for trying to reverse engineer the windows driver: https://github.com/hmaarrfk/Validity91

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If you try to strike fn + f2 it does nothing ?

When my bluetooth is disabled, i can connect to a wifi connection without beeing disconnected for a while but i have to not use the bluetooth and it is petty annoying...

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Ubuntu – VFS 495 finger print reader not working in Ubuntu

I got it working on 16.04 on this machine following this guide but it had some problems with the links so here's exactly what I did...

(first you may want to navigate to an empty folder because we'll do some downloading & compilation & conversions. Files will be all over the place)

mkdir temporary
cd ./temporary

now we've created a folder and navigated to it we can proceed...

First, download this and place it in your empty folder.

The guide's very long but what's good about it is that it should work if you just follow it sequentially. If you don't understand what's happening just copy and paste the lines one after the other (or ask in a comment)

install the driver:

tar xf vfs495.tar
cd vfs495
sudo apt install alien
sudo alien Validity-Sensor-Setup-4.5-118.00.x86_64.rpm
sudo dpkg -i validity-sensor-setup_4.5-119_amd64.deb

Now the broken links part. Here are the links that should work:

sudo apt install libssl1.0.0
ln -s /lib/x86_64-linux-gnu/libssl.so.1.0.0 /lib/x86_64-linux-gnu/libssl.so.0.9.8
sudo apt-get install libcrypto++-dev
ln -s /usr/lib/libcrypto++.so.9 /usr/lib/libcrypto.so.0.9.8

Then just proceed. Install libfprint

mkdir libfprint
cd libfprint
rpm2cpio ../libfprint-0.0.6-18.20.1.src.rpm | cpio -i --make-directories
tar xf libfprint-0.0.6.tar.bz2
cp ../libfprint-validity.patch ./libfprint-validity.patch
cd libfprint-0.0.6/
patch -p1 < ../libfprint-validity.patch
sudo apt-get install libusb-dev libcrypto++-dev libssl-dev libglib2.0-dev libmagickcore-dev checkinstall
./configure --prefix=/usr
make
sudo checkinstall -install=no make install
sudo dpkg -i libfprint_0.0.6-1_amd64.deb

Install fprint_demo

cd ../..
sudo apt-get install libgtk2.0-dev
tar xf fprint_demo-0.4.tar.bz2
cd fprint_demo-0.4
./configure --prefix=/usr
make
sudo checkinstall -install=no make install
sudo dpkg -i fprint-demo_0.4-1_amd64.deb

At this point, we can start to register our fingers.

sudo /etc/init.d/vcsFPServiceDaemon start
sudo fprint_demo

...after you enroll your finger you can train in the "identify" tab. It'll display your fingerprint! It's so much fun :D sometimes I just go there and keep swiping XD

And just a side-note, don't take screenshots of your finger and share it around unless of course, you know what you're doing. Your fingerprint is valuable. Better keep it for your eyes only.

...anyway, continue. Install pam_fprint

cd ..
tar xf pam_fprint-0.2.tar.bz2
cd pam_fprint-0.2/
sudo apt-get install libpam-dev
./configure --prefix=/usr
make
sudo checkinstall -install=no make install
sudo dpkg -i pam-fprint_0.2-1_amd64.deb

Now we can start setting up fingerprint authentication. I recommend you stop here because I've been using it for a while and there are several issues with it. So far your driver is working and that's fine. You can try it for authentication and revert it if you want, but it's not robust for daily use.

Anyway, we need to edit the /etc/pam.d/common-auth file. Be careful with this file!!. If you mess it up you'd have to fix it from recovery mode.

This would make ubuntu ask you for your fingerprint or your password to grant you root access and also for login. So you can still use your password to login

sudo nano /etc/pam.d/common-auth

We need to add the lines:

# fingerprint authentication through fprintd
auth    sufficient                      pam_fprint.so

and modify the line that has pam_unix.so nullok_secure try_first_pass to make it sufficient, like this:

auth    sufficient      pam_unix.so nullok_secure try_first_pass

So finally here's what my file looks like.

Note that the behavior will depend on where you'll place the lines. If you place them above (the "Primary" block) part it'll first ask you for your fingerprint, then your password and vice-versa.

I hope someone can clarify or give a good pointer about how this file exactly works.

Finally...

cd ..
sudo cp vcsFPServiceDaemon /etc/init.d/
sudo update-rc.d vcsFPServiceDaemon defaults

and things should be working.

Best Answer

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