Linux Developer Systems

[logicito]

I just got my 9310 dev edition, I was able to configure the fingerprint authentication right away, it was already in the factory Ubuntu OS, but I cannot find a way to use the IR camera for Facial authentication. I know about Howdy but thought maybe there is something already configured in the system? Thanks

[DELL-Chris M · Accepted solution]

See if that video helps.

[logicito]

Thank you

[MikeKulSoft]

I managed to setup howdy, however according to this video https://www.youtube.com/watch?v=3AG_RST6o1Y I should see red flashing from IR sensors. I have trouble unlocking the device when working in poor light (dark).

Am I doing something wrong? I can't see IR name anywhere when I list device:

v4l2-ctl -d /dev/video0 --all
Driver Info:
	Driver name      : uvcvideo
	Card type        : Integrated_Webcam_HD: Integrate
	Bus info         : usb-0000:00:14.0-6
	Driver version   : 5.10.46
	Capabilities     : 0x84a00001
		Video Capture
		Metadata Capture
		Streaming
		Extended Pix Format
		Device Capabilities
	Device Caps      : 0x04200001
		Video Capture
		Streaming
		Extended Pix Format
Priority: 2
Video input : 0 (Camera 1: ok)
Format Video Capture:
	Width/Height      : 640/480
	Pixel Format      : 'YUYV' (YUYV 4:2:2)
	Field             : None
	Bytes per Line    : 1280
	Size Image        : 614400
	Colorspace        : sRGB
	Transfer Function : Rec. 709
	YCbCr/HSV Encoding: ITU-R 601
	Quantization      : Default (maps to Limited Range)
	Flags             : 
Crop Capability Video Capture:
	Bounds      : Left 0, Top 0, Width 640, Height 480
	Default     : Left 0, Top 0, Width 640, Height 480
	Pixel Aspect: 1/1
Selection Video Capture: crop_default, Left 0, Top 0, Width 640, Height 480, Flags: 
Selection Video Capture: crop_bounds, Left 0, Top 0, Width 640, Height 480, Flags: 
Streaming Parameters Video Capture:
	Capabilities     : timeperframe
	Frames per second: 30.000 (30/1)
	Read buffers     : 0
                     brightness 0x00980900 (int)    : min=-64 max=64 step=1 default=0 value=0
                       contrast 0x00980901 (int)    : min=0 max=95 step=1 default=0 value=0
                     saturation 0x00980902 (int)    : min=0 max=100 step=1 default=64 value=64
                            hue 0x00980903 (int)    : min=-2000 max=2000 step=1 default=0 value=0
 white_balance_temperature_auto 0x0098090c (bool)   : default=1 value=1
                          gamma 0x00980910 (int)    : min=100 max=300 step=1 default=100 value=100
                           gain 0x00980913 (int)    : min=1 max=8 step=1 default=1 value=1
           power_line_frequency 0x00980918 (menu)   : min=0 max=2 default=2 value=2
				0: Disabled
				1: 50 Hz
				2: 60 Hz
      white_balance_temperature 0x0098091a (int)    : min=2800 max=6500 step=1 default=4600 value=4600 flags=inactive
                      sharpness 0x0098091b (int)    : min=1 max=7 step=1 default=2 value=2
         backlight_compensation 0x0098091c (int)    : min=0 max=3 step=1 default=3 value=3
                  exposure_auto 0x009a0901 (menu)   : min=0 max=3 default=3 value=3
				1: Manual Mode
				3: Aperture Priority Mode
              exposure_absolute 0x009a0902 (int)    : min=9 max=625 step=1 default=157 value=157 flags=inactive
         exposure_auto_priority 0x009a0903 (bool)   : default=0 value=1

[kalla]

I have dell precission 5550, i had to use /dev/video2 in howdy config to use IR camera.

Just list all devices using sudo v4l2-ctl --list-devices. For each device listed , ffplay and see if IR light starts blinking. eg:ffplay /dev/video2 . Use that device in your howdy config using sudo howdy config.