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Configuration fails| IR light doesn't flash, sometimes stays on constantly

Open Pyenb opened this issue 6 months ago • 5 comments

Before opening the issue

Ouput of cat /var/local/log/linux-enable-ir-emitter/linux-enable-ir-emitter.log

[17:56:05] [INFO] Stand in front of and close to the camera and make sure the room is well lit.
[17:56:05] [INFO] Ensure to not use the camera during the execution.
[17:56:06] [INFO] Configuring the camera /dev/video2.
[17:57:44] [INFO] Please retry in manual mode by adding the '-m' option.
[17:57:44] [ERROR] The configuration failed.
[17:57:44] [INFO] Do not hesitate to visit the GitHub!
[17:57:44] [INFO] https://github.com/EmixamPP/linux-enable-ir-emitter/blob/master/docs/README.md

Output of sudo linux-enable-ir-emitter tweak

[ WARN:[email protected]] global cap_v4l.cpp:913 open VIDEOIO(V4L2:/dev/video3): can't open camera by index
[ WARN:[email protected]] global cap.cpp:478 open VIDEOIO(V4L2): backend is generally available but can't be used to capture by index
[INFO] Tweaking the camera /dev/video2
[INFO] Caution, you could break the camera.
0) unit: 4, selector: 2, control: 0 32 [disable]
1) unit: 4, selector: 3, control: 0 [disable]
2) unit: 4, selector: 4, control: 0 0 [disable]
3) unit: 4, selector: 5, control: 0 0 [disable]
4) unit: 4, selector: 6, control: 1 [disable]
5) unit: 4, selector: 7, control: 1 [disable]
6) unit: 4, selector: 8, control: 3 [disable]
7) unit: 4, selector: 9, control: 0 [disable]
8) unit: 5, selector: 2, control: 0 [idle]
9) unit: 5, selector: 4, control: 79 0 [idle]
10) unit: 7, selector: 2, control: 1 0 0 0 0 0 0 96 97 2 0 0 0 0 0 [idle]
11) unit: 7, selector: 3, control: 16 0 0 0 0 0 0 0 0 0 0 [idle]
12) unit: 7, selector: 6, control: 1 3 1 0 0 0 0 0 0 [idle]
13) unit: 7, selector: 9, control: 0 0 0 0 [idle]
14) exit

Output of v4l2-ctl --list-devices

Integrated RGB Camera: Integrat (usb-0000:00:14.0-6):
        /dev/video0
        /dev/video1
        /dev/video2
        /dev/video3
        /dev/media0
        /dev/media1

Ouput of for dev in /dev/video*; do echo $dev && v4l2-ctl -d $dev --list-formats-ext; done

/dev/video0
ioctl: VIDIOC_ENUM_FMT
        Type: Video Capture

        [0]: 'MJPG' (Motion-JPEG, compressed)
                Size: Discrete 1280x720
                        Interval: Discrete 0.033s (30.000 fps)
                Size: Discrete 1920x1080
                        Interval: Discrete 0.033s (30.000 fps)
                Size: Discrete 960x540
                        Interval: Discrete 0.033s (30.000 fps)
                Size: Discrete 640x480
                        Interval: Discrete 0.033s (30.000 fps)
                Size: Discrete 640x360
                        Interval: Discrete 0.033s (30.000 fps)
                Size: Discrete 320x240
                        Interval: Discrete 0.033s (30.000 fps)
                Size: Discrete 320x180
                        Interval: Discrete 0.033s (30.000 fps)
        [1]: 'YUYV' (YUYV 4:2:2)
                Size: Discrete 1280x720
                        Interval: Discrete 0.100s (10.000 fps)
                Size: Discrete 1920x1080
                        Interval: Discrete 0.200s (5.000 fps)
                Size: Discrete 960x540
                        Interval: Discrete 0.067s (15.000 fps)
                Size: Discrete 640x480
                        Interval: Discrete 0.033s (30.000 fps)
                Size: Discrete 640x360
                        Interval: Discrete 0.033s (30.000 fps)
                Size: Discrete 320x240
                        Interval: Discrete 0.033s (30.000 fps)
                Size: Discrete 320x180
                        Interval: Discrete 0.033s (30.000 fps)
/dev/video1
ioctl: VIDIOC_ENUM_FMT
        Type: Video Capture

/dev/video2
ioctl: VIDIOC_ENUM_FMT
        Type: Video Capture

        [0]: 'GREY' (8-bit Greyscale)
                Size: Discrete 640x360
                        Interval: Discrete 0.067s (15.000 fps)
                        Interval: Discrete 0.033s (30.000 fps)
/dev/video3
ioctl: VIDIOC_ENUM_FMT
        Type: Video Capture

Output of ls -l /dev/v4l/by-path

total 0
lrwxrwxrwx. 1 root root 12 22. Jul 17:36 pci-0000:00:14.0-usb-0:6:1.0-video-index0 -> ../../video0
lrwxrwxrwx. 1 root root 12 22. Jul 17:36 pci-0000:00:14.0-usb-0:6:1.0-video-index1 -> ../../video1
lrwxrwxrwx. 1 root root 12 22. Jul 17:36 pci-0000:00:14.0-usb-0:6:1.2-video-index0 -> ../../video2
lrwxrwxrwx. 1 root root 12 22. Jul 17:36 pci-0000:00:14.0-usb-0:6:1.2-video-index1 -> ../../video3
lrwxrwxrwx. 1 root root 12 22. Jul 17:36 pci-0000:00:14.0-usbv2-0:6:1.0-video-index0 -> ../../video0
lrwxrwxrwx. 1 root root 12 22. Jul 17:36 pci-0000:00:14.0-usbv2-0:6:1.0-video-index1 -> ../../video1
lrwxrwxrwx. 1 root root 12 22. Jul 17:36 pci-0000:00:14.0-usbv2-0:6:1.2-video-index0 -> ../../video2
lrwxrwxrwx. 1 root root 12 22. Jul 17:36 pci-0000:00:14.0-usbv2-0:6:1.2-video-index1 -> ../../video3

Give more information if you have

  • Currently used command sudo linux-enable-ir-emitter --device /dev/video2 --width 640 --height 360 configure for configuration.
  • During configuration phase, the IR light would gradually get brighter, but not blink, only occasionally stay on completely, but still not blink.
  • Each step in manual mode also made it go brither, until it turned off again

Additional info

  • Computer model: Lenovo Thinkbook 16 G7 IML
  • Linux distribution: Fedora Linux 42
  • Version of linux-enable-ir-emitter: linux-enable-ir-emitter 6.1.1

Pyenb avatar Jul 22 '25 16:07 Pyenb

Try

  1. sudo linux-enable-ir-emitter tweak
  2. Input 13
  3. Input 1 3 2 0 0 0 0 0 0
  4. You should see your emitter blinking 🤞

EmixamPP avatar Aug 01 '25 20:08 EmixamPP

Thanks for the answer, but I am doing something wrong? I just keep getting [WARN] Invalid value for the control. when trying to enter the new current control.

Log:

sudo linux-enable-ir-emitter tweak
[ WARN:[email protected]] global cap_v4l.cpp:913 open VIDEOIO(V4L2:/dev/video3): can't open camera by index
[ WARN:[email protected]] global cap.cpp:478 open VIDEOIO(V4L2): backend is generally available but can't be used to capture by index
[INFO] Tweaking the camera /dev/video2
[INFO] Caution, you could break the camera.
0) unit: 4, selector: 2, control: 0 32 [disable]
1) unit: 4, selector: 3, control: 0 [disable]
2) unit: 4, selector: 4, control: 0 0 [disable]
3) unit: 4, selector: 5, control: 0 0 [disable]
4) unit: 4, selector: 6, control: 1 [disable]
5) unit: 4, selector: 7, control: 1 [disable]
6) unit: 4, selector: 8, control: 3 [disable]
7) unit: 4, selector: 9, control: 0 [disable]
8) unit: 5, selector: 2, control: 0 [idle]
9) unit: 5, selector: 4, control: 79 0 [idle]
10) unit: 7, selector: 2, control: 1 0 0 0 0 0 0 96 97 2 0 0 0 0 0 [idle]
11) unit: 7, selector: 3, control: 16 0 0 0 0 0 0 0 0 0 0 [idle]
12) unit: 7, selector: 6, control: 1 3 1 0 0 0 0 0 0 [idle]
13) unit: 7, selector: 9, control: 0 0 0 0 [idle]
14) exit
Choose an instruction to tweak: 13
minimum: 0 0 0 0
maximum: 1 0 0 0
initial: 0 0 0 0
current: 0 0 0 0
status: idle
Input a new current control or status (start/idle/disable) or q to return: 1 3 2 0 0 0 0 0 0
[WARN] Invalid value for the control.

Pyenb avatar Aug 03 '25 16:08 Pyenb

Ah I see, it is because of the maximum value that is blocking. Hum, I should not hard block such case.

Please open the file in /etc/linux-enable-ir-emitter (not the .ini one) and set the value of 1 3 2 0 0 0 0 0 0 for the unit 7, selector 6 in there. The format inside should be pretty clear to understand (human readable) + switch the status from idle to enable.

After that, execute linux-enable-ir-emitter run

EmixamPP avatar Aug 05 '25 17:08 EmixamPP

Hey, sorry for the delay, I didn't really had time to test this. Funnily enough I just did a kernel update and reinstalled the program and during the configuration phase it just started working. Can I somehow make sure that the IR LED really runs at the max power for best results, or shouldn't it be to worried about that? Currently I feel like, while it is blinking, it's not at full power.

tweaks:

❯ sudo linux-enable-ir-emitter tweak       
[ WARN:[email protected]] global cap_v4l.cpp:913 open VIDEOIO(V4L2:/dev/video3): can't open camera by index
[ WARN:[email protected]] global cap.cpp:478 open VIDEOIO(V4L2): backend is generally available but can't be used to capture by index
[INFO] Tweaking the camera /dev/video2
[INFO] Caution, you could break the camera.
0) unit: 5, selector: 2, control: 8 [start]
1) unit: 5, selector: 4, control: 114 0 [idle]
2) unit: 7, selector: 2, control: 1 0 0 0 0 0 0 96 97 2 0 0 0 0 0 [idle]
3) unit: 7, selector: 3, control: 16 0 0 0 0 0 0 0 0 0 0 [idle]
4) unit: 7, selector: 6, control: 1 3 1 0 0 0 0 0 0 [idle]
5) unit: 7, selector: 9, control: 0 0 0 0 [idle]
6) exit

And thank you again for taking the time to do this.

Edit: Also I just realized that I now have the problem that the IR LED works and blinks during the configuration phase, but not when I run the test command. Anything else I should try?

Pyenb avatar Aug 07 '25 21:08 Pyenb

I am not sure to follow what is happening. But ok, let's try to make it more clear.

Can I somehow make sure that the IR LED really runs at the max power for best results, or shouldn't it be to worried about that?

That I do not know. If this is possible with your camera, you will need to manually find a proper value. E.g. try to increase the value of the entry 0 using the sudo linux-enable-ir-emitter tweak command or manually modifying the file /etc/linux-enable-ir-emitter/pci-0000:00:14.0-usb-0:6:1.2-video-index0 (I think the path is correct, adjust if needed). See the bottom of the README.md for a bit more explanation on the tweak command.

Also I just realized that I now have the problem that the IR LED works and blinks during the configuration phase, but not when I run the test command.

Probably, your camera requires executing linux-enable-ir-emitter run each time you are using it. In order to determine that, execute linux-enable-ir-emitter test then run and again test a confirmation that the ir emitter is blinking.

If so, I assume you are using it in combination with Howdy In all file returned by grep -rl howdy /etc/pam.d, add the following line before the one mentioning "howdy":

auth optional pam_exec.so /usr/local/bin/linux-enable-ir-emitter run

EmixamPP avatar Sep 07 '25 16:09 EmixamPP

The v7.0.0-beta is out. Please don't hesitate to try it (c.f. readme).

EmixamPP avatar Dec 16 '25 09:12 EmixamPP