Hello I am very glad that under 18.10 the face recognition is working on Thinkpad T25 and probably T470 too.

Thank to
https://github.com/boltgolt/howdy


sudo add-apt-repository ppa:boltgolt/howdy

sudo apt update

sudo apt install howdy





When installation asks about infra lighting there was no infra lighting ever.

After Howdy install there was cv2 problem, the solution was:

sudo –H pip install opencv-python



It was necessary to add line

QT_X11_NO_MITSHM=1
to


/etc/environment (sudo nano /etc/environment)

Device=1 is normal camera on TP25 (TP470)

Device=0 is infra camera

It was not working, there was a green snow in Cheese program. In Guvcview it looks good.


It was necessary to change using


sudo howdy config

lines

device = 0
frame_width = 340


frame_height = 340

There was defaults .. -1



Persisting problem: If I successfully login to Ubuntu using face recognition, I must unlock keyring.

I use Chrome and Skype.



I needed to disable howdy to install plugin for hp printer using hplip-gui. Hplip-gui allways had bad password when Howdy enabled, no face recognition timeout reached.



Question: is it possible that after that ubuntu update manager said: your python installation is corrupted fix your

usr/bin/python symlink

(when I start it it starts to python 2.7)

fixed with this:
sudo rm /usr/bin/python
sudo ln -sf /usr/bin/python2.7 /usr/bin/python