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Impossible to obtain the v4l name while configuring #212

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simonsd054 opened this issue Dec 5, 2024 · 2 comments
Open

Impossible to obtain the v4l name while configuring #212

simonsd054 opened this issue Dec 5, 2024 · 2 comments

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@simonsd054
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Ouput of cat /var/local/log/linux-enable-ir-emitter/linux-enable-ir-emitter.log

[05:20:21] [INFO] Stand in front of and close to the camera and make sure the room is well lit.
[05:20:21] [INFO] Ensure to not use the camera during the execution.
[05:20:23] [INFO] Configuring the camera /dev/video0.
[05:20:34] [ERROR] Impossible to obtain the v4l name of /dev/video0.
[05:20:34] [ERROR] The configuration failed.
[05:20:34] [INFO] Do not hesitate to visit the GitHub!
[05:20:34] [INFO] https://github.com/EmixamPP/linux-enable-ir-emitter/blob/master/docs/README.md
[05:31:13] [INFO] Stand in front of and close to the camera and make sure the room is well lit.
[05:31:13] [INFO] Ensure to not use the camera during the execution.
[05:31:14] [INFO] Configuring the camera /dev/video0.
[05:31:19] [ERROR] Impossible to obtain the v4l name of /dev/video0.
[05:31:19] [ERROR] The configuration failed.
[05:31:19] [INFO] Do not hesitate to visit the GitHub!
[05:31:19] [INFO] https://github.com/EmixamPP/linux-enable-ir-emitter/blob/master/docs/README.md
[05:31:35] [INFO] Stand in front of and close to the camera and make sure the room is well lit.
[05:31:35] [INFO] Ensure to not use the camera during the execution.
[05:31:36] [INFO] Configuring the camera /dev/video0.
[05:31:44] [ERROR] Impossible to obtain the v4l name of /dev/video0.
[05:31:44] [ERROR] The configuration failed.
[05:31:44] [INFO] Do not hesitate to visit the GitHub!
[05:31:44] [INFO] https://github.com/EmixamPP/linux-enable-ir-emitter/blob/master/docs/README.md
[05:32:07] [INFO] Stand in front of and close to the camera and make sure the room is well lit.
[05:32:07] [INFO] Ensure to not use the camera during the execution.
[05:32:09] [INFO] Configuring the camera /dev/video0.
[05:32:12] [ERROR] Impossible to obtain the v4l name of /dev/video0.
[05:32:12] [ERROR] The configuration failed.
[05:32:12] [INFO] Do not hesitate to visit the GitHub!
[05:32:12] [INFO] https://github.com/EmixamPP/linux-enable-ir-emitter/blob/master/docs/README.md
[05:35:39] [INFO] Stand in front of and close to the camera and make sure the room is well lit.
[05:35:39] [INFO] Ensure to not use the camera during the execution.
[05:35:40] [INFO] Configuring the camera /dev/video0.
[05:35:44] [ERROR] Impossible to obtain the v4l name of /dev/video0.
[05:35:44] [ERROR] The configuration failed.
[05:35:44] [INFO] Do not hesitate to visit the GitHub!
[05:35:44] [INFO] https://github.com/EmixamPP/linux-enable-ir-emitter/blob/master/docs/README.md

Output of sudo linux-enable-ir-emitter tweak

[INFO] Tweaking the camera /dev/video15
[INFO] Caution, you could break the camera.
0) exit
Choose an instruction to tweak: 0

Output of v4l2-ctl --list-devices

ipu6 (PCI:pci:pci0000:00):
	/dev/video8
	/dev/video9
	/dev/video10
	/dev/video11
	/dev/video12
	/dev/video13
	/dev/video14
	/dev/video15

ipu6 (pci:pci0000:00):
	/dev/media0

Intel MIPI Camera (platform:v4l2loopback-000):
	/dev/video0

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]: 'YU12' (Planar YUV 4:2:0)
		Size: Discrete 1280x720
			Interval: Discrete 0.033s (30.000 fps)
/dev/video10
ioctl: VIDIOC_ENUM_FMT
	Type: Video Capture Multiplanar

	[0]: 'Y10 ' (10-bit Greyscale)
	[1]: 'BX24' (32-bit XRGB 8-8-8-8)
	[2]: 'Y12I' (Interleaved 12-bit Greyscale)
	[3]: 'Z16 ' (16-bit Depth)
	[4]: 'YUYV' (YUYV 4:2:2)
	[5]: 'Y8I ' (Interleaved 8-bit Greyscale)
	[6]: 'BG12' (12-bit Bayer BGBG/GRGR)
	[7]: 'GB12' (12-bit Bayer GBGB/RGRG)
	[8]: 'BA12' (12-bit Bayer GRGR/BGBG)
	[9]: 'RG12' (12-bit Bayer RGRG/GBGB)
	[10]: 'BG10' (10-bit Bayer BGBG/GRGR)
	[11]: 'GB10' (10-bit Bayer GBGB/RGRG)
	[12]: 'BA10' (10-bit Bayer GRGR/BGBG)
	[13]: 'RG10' (10-bit Bayer RGRG/GBGB)
	[14]: 'BA81' (8-bit Bayer BGBG/GRGR)
	[15]: 'GBRG' (8-bit Bayer GBGB/RGRG)
	[16]: 'GRBG' (8-bit Bayer GRGR/BGBG)
	[17]: 'RGGB' (8-bit Bayer RGRG/GBGB)
	[18]: 'GREY' (8-bit Greyscale)
/dev/video11
ioctl: VIDIOC_ENUM_FMT
	Type: Video Capture Multiplanar

	[0]: 'Y10 ' (10-bit Greyscale)
	[1]: 'BX24' (32-bit XRGB 8-8-8-8)
	[2]: 'Y12I' (Interleaved 12-bit Greyscale)
	[3]: 'Z16 ' (16-bit Depth)
	[4]: 'YUYV' (YUYV 4:2:2)
	[5]: 'Y8I ' (Interleaved 8-bit Greyscale)
	[6]: 'BG12' (12-bit Bayer BGBG/GRGR)
	[7]: 'GB12' (12-bit Bayer GBGB/RGRG)
	[8]: 'BA12' (12-bit Bayer GRGR/BGBG)
	[9]: 'RG12' (12-bit Bayer RGRG/GBGB)
	[10]: 'BG10' (10-bit Bayer BGBG/GRGR)
	[11]: 'GB10' (10-bit Bayer GBGB/RGRG)
	[12]: 'BA10' (10-bit Bayer GRGR/BGBG)
	[13]: 'RG10' (10-bit Bayer RGRG/GBGB)
	[14]: 'BA81' (8-bit Bayer BGBG/GRGR)
	[15]: 'GBRG' (8-bit Bayer GBGB/RGRG)
	[16]: 'GRBG' (8-bit Bayer GRGR/BGBG)
	[17]: 'RGGB' (8-bit Bayer RGRG/GBGB)
	[18]: 'GREY' (8-bit Greyscale)
/dev/video12
ioctl: VIDIOC_ENUM_FMT
	Type: Video Capture Multiplanar

	[0]: 'Y10 ' (10-bit Greyscale)
	[1]: 'BX24' (32-bit XRGB 8-8-8-8)
	[2]: 'Y12I' (Interleaved 12-bit Greyscale)
	[3]: 'Z16 ' (16-bit Depth)
	[4]: 'YUYV' (YUYV 4:2:2)
	[5]: 'Y8I ' (Interleaved 8-bit Greyscale)
	[6]: 'BG12' (12-bit Bayer BGBG/GRGR)
	[7]: 'GB12' (12-bit Bayer GBGB/RGRG)
	[8]: 'BA12' (12-bit Bayer GRGR/BGBG)
	[9]: 'RG12' (12-bit Bayer RGRG/GBGB)
	[10]: 'BG10' (10-bit Bayer BGBG/GRGR)
	[11]: 'GB10' (10-bit Bayer GBGB/RGRG)
	[12]: 'BA10' (10-bit Bayer GRGR/BGBG)
	[13]: 'RG10' (10-bit Bayer RGRG/GBGB)
	[14]: 'BA81' (8-bit Bayer BGBG/GRGR)
	[15]: 'GBRG' (8-bit Bayer GBGB/RGRG)
	[16]: 'GRBG' (8-bit Bayer GRGR/BGBG)
	[17]: 'RGGB' (8-bit Bayer RGRG/GBGB)
	[18]: 'GREY' (8-bit Greyscale)
/dev/video13
ioctl: VIDIOC_ENUM_FMT
	Type: Video Capture Multiplanar

	[0]: 'Y10 ' (10-bit Greyscale)
	[1]: 'BX24' (32-bit XRGB 8-8-8-8)
	[2]: 'Y12I' (Interleaved 12-bit Greyscale)
	[3]: 'Z16 ' (16-bit Depth)
	[4]: 'YUYV' (YUYV 4:2:2)
	[5]: 'Y8I ' (Interleaved 8-bit Greyscale)
	[6]: 'BG12' (12-bit Bayer BGBG/GRGR)
	[7]: 'GB12' (12-bit Bayer GBGB/RGRG)
	[8]: 'BA12' (12-bit Bayer GRGR/BGBG)
	[9]: 'RG12' (12-bit Bayer RGRG/GBGB)
	[10]: 'BG10' (10-bit Bayer BGBG/GRGR)
	[11]: 'GB10' (10-bit Bayer GBGB/RGRG)
	[12]: 'BA10' (10-bit Bayer GRGR/BGBG)
	[13]: 'RG10' (10-bit Bayer RGRG/GBGB)
	[14]: 'BA81' (8-bit Bayer BGBG/GRGR)
	[15]: 'GBRG' (8-bit Bayer GBGB/RGRG)
	[16]: 'GRBG' (8-bit Bayer GRGR/BGBG)
	[17]: 'RGGB' (8-bit Bayer RGRG/GBGB)
	[18]: 'GREY' (8-bit Greyscale)
/dev/video14
ioctl: VIDIOC_ENUM_FMT
	Type: Video Capture Multiplanar

	[0]: 'Y10 ' (10-bit Greyscale)
	[1]: 'BX24' (32-bit XRGB 8-8-8-8)
	[2]: 'Y12I' (Interleaved 12-bit Greyscale)
	[3]: 'Z16 ' (16-bit Depth)
	[4]: 'YUYV' (YUYV 4:2:2)
	[5]: 'Y8I ' (Interleaved 8-bit Greyscale)
	[6]: 'BG12' (12-bit Bayer BGBG/GRGR)
	[7]: 'GB12' (12-bit Bayer GBGB/RGRG)
	[8]: 'BA12' (12-bit Bayer GRGR/BGBG)
	[9]: 'RG12' (12-bit Bayer RGRG/GBGB)
	[10]: 'BG10' (10-bit Bayer BGBG/GRGR)
	[11]: 'GB10' (10-bit Bayer GBGB/RGRG)
	[12]: 'BA10' (10-bit Bayer GRGR/BGBG)
	[13]: 'RG10' (10-bit Bayer RGRG/GBGB)
	[14]: 'BA81' (8-bit Bayer BGBG/GRGR)
	[15]: 'GBRG' (8-bit Bayer GBGB/RGRG)
	[16]: 'GRBG' (8-bit Bayer GRGR/BGBG)
	[17]: 'RGGB' (8-bit Bayer RGRG/GBGB)
	[18]: 'GREY' (8-bit Greyscale)
/dev/video15
ioctl: VIDIOC_ENUM_FMT
	Type: Video Capture Multiplanar

	[0]: 'Y10 ' (10-bit Greyscale)
	[1]: 'BX24' (32-bit XRGB 8-8-8-8)
	[2]: 'Y12I' (Interleaved 12-bit Greyscale)
	[3]: 'Z16 ' (16-bit Depth)
	[4]: 'YUYV' (YUYV 4:2:2)
	[5]: 'Y8I ' (Interleaved 8-bit Greyscale)
	[6]: 'BG12' (12-bit Bayer BGBG/GRGR)
	[7]: 'GB12' (12-bit Bayer GBGB/RGRG)
	[8]: 'BA12' (12-bit Bayer GRGR/BGBG)
	[9]: 'RG12' (12-bit Bayer RGRG/GBGB)
	[10]: 'BG10' (10-bit Bayer BGBG/GRGR)
	[11]: 'GB10' (10-bit Bayer GBGB/RGRG)
	[12]: 'BA10' (10-bit Bayer GRGR/BGBG)
	[13]: 'RG10' (10-bit Bayer RGRG/GBGB)
	[14]: 'BA81' (8-bit Bayer BGBG/GRGR)
	[15]: 'GBRG' (8-bit Bayer GBGB/RGRG)
	[16]: 'GRBG' (8-bit Bayer GRGR/BGBG)
	[17]: 'RGGB' (8-bit Bayer RGRG/GBGB)
	[18]: 'GREY' (8-bit Greyscale)
/dev/video8
ioctl: VIDIOC_ENUM_FMT
	Type: Video Capture Multiplanar

	[0]: 'Y10 ' (10-bit Greyscale)
	[1]: 'BX24' (32-bit XRGB 8-8-8-8)
	[2]: 'Y12I' (Interleaved 12-bit Greyscale)
	[3]: 'Z16 ' (16-bit Depth)
	[4]: 'YUYV' (YUYV 4:2:2)
	[5]: 'Y8I ' (Interleaved 8-bit Greyscale)
	[6]: 'BG12' (12-bit Bayer BGBG/GRGR)
	[7]: 'GB12' (12-bit Bayer GBGB/RGRG)
	[8]: 'BA12' (12-bit Bayer GRGR/BGBG)
	[9]: 'RG12' (12-bit Bayer RGRG/GBGB)
	[10]: 'BG10' (10-bit Bayer BGBG/GRGR)
	[11]: 'GB10' (10-bit Bayer GBGB/RGRG)
	[12]: 'BA10' (10-bit Bayer GRGR/BGBG)
	[13]: 'RG10' (10-bit Bayer RGRG/GBGB)
	[14]: 'BA81' (8-bit Bayer BGBG/GRGR)
	[15]: 'GBRG' (8-bit Bayer GBGB/RGRG)
	[16]: 'GRBG' (8-bit Bayer GRGR/BGBG)
	[17]: 'RGGB' (8-bit Bayer RGRG/GBGB)
	[18]: 'GREY' (8-bit Greyscale)
/dev/video9
ioctl: VIDIOC_ENUM_FMT
	Type: Video Capture Multiplanar

	[0]: 'Y10 ' (10-bit Greyscale)
	[1]: 'BX24' (32-bit XRGB 8-8-8-8)
	[2]: 'Y12I' (Interleaved 12-bit Greyscale)
	[3]: 'Z16 ' (16-bit Depth)
	[4]: 'YUYV' (YUYV 4:2:2)
	[5]: 'Y8I ' (Interleaved 8-bit Greyscale)
	[6]: 'BG12' (12-bit Bayer BGBG/GRGR)
	[7]: 'GB12' (12-bit Bayer GBGB/RGRG)
	[8]: 'BA12' (12-bit Bayer GRGR/BGBG)
	[9]: 'RG12' (12-bit Bayer RGRG/GBGB)
	[10]: 'BG10' (10-bit Bayer BGBG/GRGR)
	[11]: 'GB10' (10-bit Bayer GBGB/RGRG)
	[12]: 'BA10' (10-bit Bayer GRGR/BGBG)
	[13]: 'RG10' (10-bit Bayer RGRG/GBGB)
	[14]: 'BA81' (8-bit Bayer BGBG/GRGR)
	[15]: 'GBRG' (8-bit Bayer GBGB/RGRG)
	[16]: 'GRBG' (8-bit Bayer GRGR/BGBG)
	[17]: 'RGGB' (8-bit Bayer RGRG/GBGB)
	[18]: 'GREY' (8-bit Greyscale)
/dev/video_front
ioctl: VIDIOC_ENUM_FMT
	Type: Video Capture

	[0]: 'YU12' (Planar YUV 4:2:0)
		Size: Discrete 1280x720
			Interval: Discrete 0.033s (30.000 fps)

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

total 0
lrwxrwxrwx. 1 root root 12 Dec  5 04:13 pci-0000:00:05.0-video-index0 -> ../../video8
lrwxrwxrwx. 1 root root 12 Dec  5 04:13 pci-0000:00:05.0-video-index1 -> ../../video9
lrwxrwxrwx. 1 root root 13 Dec  5 04:13 pci-0000:00:05.0-video-index2 -> ../../video10
lrwxrwxrwx. 1 root root 13 Dec  5 04:13 pci-0000:00:05.0-video-index3 -> ../../video11
lrwxrwxrwx. 1 root root 13 Dec  5 04:13 pci-0000:00:05.0-video-index4 -> ../../video12
lrwxrwxrwx. 1 root root 13 Dec  5 04:13 pci-0000:00:05.0-video-index5 -> ../../video13
lrwxrwxrwx. 1 root root 13 Dec  5 04:13 pci-0000:00:05.0-video-index6 -> ../../video14
lrwxrwxrwx. 1 root root 13 Dec  5 04:13 pci-0000:00:05.0-video-index7 -> ../../video15

Give more information if you have
I get this error when I try to configure as shown in the image below: Impossible to obtain the v4l name of /dev/video0
Screenshot From 2024-12-05 05-36-37

Additional info

  • Computer (or camera) model: Dell XPS 13 9340
  • Linux distribution: Fedora
  • Version of linux-enable-ir-emitter: 6.1.0 but tried 6.0.6 and 6.0.5 - same error
@EmixamPP
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Owner

If you execute linux-enable-ir-emitter -d /dev/video<X> test

Where you replace by the number for each of the following device entry:
/dev/video8
/dev/video9
/dev/video10
/dev/video11
/dev/video12
/dev/video13
/dev/video14
/dev/video15

Which one does show a grayscale image (or very dark if your room is not lighted enough)?

@EmixamPP
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Owner

Try also with the ffplay utils: ffplay /dev/video (ffmpeg package on fedora) to see if you can get a video feedback and let me know

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@simonsd054 @EmixamPP