Give immediately up with no camera

[GoogleCodeExporter]

Give immediately up with no camera

[GoogleCodeExporter]

:-/ it should have said "Give up immediately"
Also it should be an enhancement.

Original comment by [email protected] on 24 Apr 2010 at 9:07

[GoogleCodeExporter]

Noted. I will fix this in the next release :) 

Thanks

Original comment by [email protected] on 30 Apr 2010 at 9:30

• Changed state: Started
• Added labels: Type-Enhancement, Usability
• Removed labels: Type-Defect

[GoogleCodeExporter]

Thanks for responding so quickly.

Also this might help:
I noticed that it only happens when other USB devices are plugged in (when 
nothing is
plugged in it gives up immediately).

Original comment by [email protected] on 23 May 2010 at 5:03

[GoogleCodeExporter]

are you sure about this. I will need your help debugging this. Code is written 
to
exit immediately if webcam is not found.

Original comment by [email protected] on 24 May 2010 at 7:46

[GoogleCodeExporter]

I just tried a couple of different things and noticed this:

If I have any USB device plugged in, Slim, the login manager, hangs for a 
minute as 
if it's trying to authenticate with the (absent) webcam.
When I look at the log it just has the webcam-not-found message.

Moreover, when I try to use the authentication with su, it immediately tells me 
there 
is no webcam and exits (no wait).

If I remember right xscreensaver behaved like slim as well.

I don't know, do you think it might just be something specific to my setup?
Do you know of any possible reason why it would wait in one case but not 
another?

Original comment by [email protected] on 25 May 2010 at 5:28

[GoogleCodeExporter]

you could attach gdb to slim 
gdb ( attach PID )
and when its stuck in some processing
Ctrl + C and look at bt
Look at which function is being executed 

http://code.google.com/p/pam-face-authentication/source/browse/trunk/qtbranch/sr
c/pam_face_authentication.cpp
look at #423
    if (webcam.startCamera()==0)
then exit

Original comment by [email protected] on 25 May 2010 at 6:30

[GoogleCodeExporter]

I have also added an option in one XML file which would allow the root to set 
the
timeout ( that is for how much time it should try recognizing the face ).

I will release 0.4 version this week, Mostly usability improvements.

Original comment by [email protected] on 25 May 2010 at 6:32