Ubuntu
libcamera package

IPU3 Device detected but list of available cameras empty

Asked by Thomas Wutzler

To make the multi-planar camera of my dell laptop work,I followed the instructions at https://libcamera.org/getting-started.html.
The list of available cameras is empty, despite of the device seems to be recognized by libcamera.
Can I make my camera work with libcamera?

If there is a better place to ask for help, please point me to the right place.

When I ran the basic testing command: "LIBCAMERA_LOG_LEVELS=*:DEBUG cam -l", I get the following output

[0:18:17.658337426] [7054] DEBUG IPAModule ipa_module.cpp:334 ipa_ipu3.so: IPA module /usr/local/lib/x86_64-linux-gnu/libcamera/ipa_ipu3.so is signed
[0:18:17.658533647] [7054] DEBUG IPAManager ipa_manager.cpp:245 Loaded IPA module '/usr/local/lib/x86_64-linux-gnu/libcamera/ipa_ipu3.so'
[0:18:17.658719205] [7054] INFO Camera camera_manager.cpp:284 libcamera v0.1.0+146-27159861
[0:18:17.658855771] [7055] DEBUG Camera camera_manager.cpp:69 Starting camera manager
[0:18:17.662408364] [7055] DEBUG DeviceEnumerator device_enumerator.cpp:224 New media device "ipu3-imgu" created from /dev/media0
[0:18:17.662610916] [7055] DEBUG DeviceEnumerator device_enumerator_udev.cpp:96 Defer media device /dev/media0 due to 12 missing dependencies
[0:18:17.664791125] [7055] DEBUG DeviceEnumerator device_enumerator_udev.cpp:322 All dependencies for media device /dev/media0 found
[0:18:17.664854505] [7055] DEBUG DeviceEnumerator device_enumerator.cpp:252 Added device /dev/media0: ipu3-imgu
[0:18:17.665452808] [7055] DEBUG DeviceEnumerator device_enumerator.cpp:224 New media device "ipu3-cio2" created from /dev/media1
[0:18:17.665596272] [7055] DEBUG DeviceEnumerator device_enumerator_udev.cpp:96 Defer media device /dev/media1 due to 8 missing dependencies
[0:18:17.667254820] [7055] DEBUG DeviceEnumerator device_enumerator_udev.cpp:322 All dependencies for media device /dev/media1 found
[0:18:17.667441440] [7055] DEBUG DeviceEnumerator device_enumerator.cpp:252 Added device /dev/media1: ipu3-cio2
[0:18:17.668506266] [7055] DEBUG Camera camera_manager.cpp:113 Found registered pipeline handler 'PipelineHandlerIPU3'
[0:18:17.669095531] [7055] DEBUG DeviceEnumerator device_enumerator.cpp:312 Successful match for media device "ipu3-cio2"
[0:18:17.669264185] [7055] DEBUG DeviceEnumerator device_enumerator.cpp:312 Successful match for media device "ipu3-imgu"
[0:18:17.669436178] [7055] DEBUG MediaDevice media_device.cpp:830 /dev/media0[ipu3-imgu]: ipu3-imgu 0[3] -> ipu3-imgu 0 viewfinder[0]: 0
[0:18:17.669482221] [7055] DEBUG MediaDevice media_device.cpp:830 /dev/media0[ipu3-imgu]: ipu3-imgu 0[4] -> ipu3-imgu 0 3a stat[0]: 0
[0:18:17.669502555] [7055] DEBUG MediaDevice media_device.cpp:830 /dev/media0[ipu3-imgu]: ipu3-imgu 0 input[0] -> ipu3-imgu 0[0]: 0
[0:18:17.669522919] [7055] DEBUG MediaDevice media_device.cpp:830 /dev/media0[ipu3-imgu]: ipu3-imgu 0 parameters[0] -> ipu3-imgu 0[1]: 0
[0:18:17.669559584] [7055] DEBUG MediaDevice media_device.cpp:830 /dev/media0[ipu3-imgu]: ipu3-imgu 1[3] -> ipu3-imgu 1 viewfinder[0]: 0
[0:18:17.669581975] [7055] DEBUG MediaDevice media_device.cpp:830 /dev/media0[ipu3-imgu]: ipu3-imgu 1[4] -> ipu3-imgu 1 3a stat[0]: 0
[0:18:17.669595418] [7055] DEBUG MediaDevice media_device.cpp:830 /dev/media0[ipu3-imgu]: ipu3-imgu 1 input[0] -> ipu3-imgu 1[0]: 0
[0:18:17.669613626] [7055] DEBUG MediaDevice media_device.cpp:830 /dev/media0[ipu3-imgu]: ipu3-imgu 1 parameters[0] -> ipu3-imgu 1[1]: 0
[0:18:17.669979917] [7055] DEBUG V4L2 v4l2_device.cpp:636 'ipu3-imgu 0': Control: IPU3 Pipe Mode (0x009819c1)
[0:18:17.671093455] [7055] DEBUG V4L2 v4l2_videodevice.cpp:632 /dev/video0[15:out]: Opened device PCI:0000:00:05.0: ipu3-imgu: ipu3-imgu
[0:18:17.671940881] [7055] DEBUG V4L2 v4l2_videodevice.cpp:632 /dev/video2[16:cap]: Opened device PCI:0000:00:05.0: ipu3-imgu: ipu3-imgu
[0:18:17.672473028] [7055] DEBUG V4L2 v4l2_videodevice.cpp:632 /dev/video3[17:cap]: Opened device PCI:0000:00:05.0: ipu3-imgu: ipu3-imgu
[0:18:17.672733026] [7055] DEBUG V4L2 v4l2_videodevice.cpp:632 /dev/video1[18:out]: Opened device PCI:0000:00:05.0: ipu3-imgu: ipu3-imgu
[0:18:17.672914183] [7055] DEBUG V4L2 v4l2_videodevice.cpp:632 /dev/video4[19:cap]: Opened device PCI:0000:00:05.0: ipu3-imgu: ipu3-imgu
[0:18:17.673090271] [7055] DEBUG V4L2 v4l2_device.cpp:636 'ipu3-imgu 1': Control: IPU3 Pipe Mode (0x009819c1)
[0:18:17.673385539] [7055] DEBUG V4L2 v4l2_videodevice.cpp:632 /dev/video5[21:out]: Opened device PCI:0000:00:05.0: ipu3-imgu: ipu3-imgu
[0:18:17.673576465] [7055] DEBUG V4L2 v4l2_videodevice.cpp:632 /dev/video7[22:cap]: Opened device PCI:0000:00:05.0: ipu3-imgu: ipu3-imgu
[0:18:17.673742733] [7055] DEBUG V4L2 v4l2_videodevice.cpp:632 /dev/video8[23:cap]: Opened device PCI:0000:00:05.0: ipu3-imgu: ipu3-imgu
[0:18:17.673951691] [7055] DEBUG V4L2 v4l2_videodevice.cpp:632 /dev/video6[24:out]: Opened device PCI:0000:00:05.0: ipu3-imgu: ipu3-imgu
[0:18:17.674151146] [7055] DEBUG V4L2 v4l2_videodevice.cpp:632 /dev/video9[25:cap]: Opened device PCI:0000:00:05.0: ipu3-imgu: ipu3-imgu
[0:18:17.676379596] [7055] DEBUG Camera camera_manager.cpp:113 Found registered pipeline handler 'PipelineHandlerUVC'
Available cameras:

The subsequent GStreamer command reports:
gst-device-monitor-1.0 Video

Probing devices...
(gst-device-monitor-1.0:7127): GStreamer-CRITICAL **: 12:05:44.147: gst_element_message_full_with_details: assertion 'GST_IS_ELEMENT (element)' failed
(gst-device-monitor-1.0:7127): GStreamer-CRITICAL **: 12:05:44.147: gst_element_message_full_with_details: assertion 'GST_IS_ELEMENT (element)' failed
(gst-device-monitor-1.0:7127): GStreamer-CRITICAL **: 12:05:44.149: gst_element_message_full_with_details: assertion 'GST_IS_ELEMENT (element)' failed
(gst-device-monitor-1.0:7127): GStreamer-CRITICAL **: 12:05:44.149: gst_element_message_full_with_details: assertion 'GST_IS_ELEMENT (element)' failed
(gst-device-monitor-1.0:7127): GStreamer-CRITICAL **: 12:05:44.149: gst_element_message_full_with_details: assertion 'GST_IS_ELEMENT (element)' failed
(gst-device-monitor-1.0:7127): GStreamer-CRITICAL **: 12:05:44.149: gst_element_message_full_with_details: assertion 'GST_IS_ELEMENT (element)' failed

Question information

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Revision history for this message
actionparsnip (andrew-woodhead666) said : 		#1

What is the output of:

ls -la /dev/media0; echo; groups

Thanks

Revision history for this message
actionparsnip (andrew-woodhead666) said : 		#2

I'm suspecting permissions here

Revision history for this message
Thomas Wutzler (twutz) said : 		#3

The output is of the command is:
twutz adm dialout fax cdrom floppy tape sudo audio dip video plugdev netdev lpadmin nopasswdlogin scanner sambashare

I am a member of the video group.

Revision history for this message
actionparsnip (andrew-woodhead666) said : 		#4

What is the output of:

ls -la /dev/media0

Revision history for this message
Thomas Wutzler (twutz) said : 		#5

The output of the command is:
crw-rw----+ 1 root video 234, 0 Jan 5 11:45 /dev/media0

To provide more system information: I am on Mint 21.2 Xfce, which is an Unbuntu 22.04
The notebook is a Dell Latitude 5285
The Camera specs at Dells website give (I need the front-camera for videoconferences):

        Front Camera- 5MP fixed focus
        Rear Camera- 8MP auto focus
        IR Camera- VGA IR cameraOptional IR camera (Win Hello compliant)

Sensor type
    CMOS sensor technology (Front and Rear camera)
Imaging rate
    Up to 30 frames per second
Video Resolution

        Front Camera- 2592 x 1944 pixels
        Rear Camera- 3264 x 2448 pixels

Revision history for this message
actionparsnip (andrew-woodhead666) said : 		#6

Mint isn't supported here or by the Ubuntu community. Mint has its own support channels which are separate from Ubuntu's

I suggest you post on the Mint forum here
https://forums.linuxmint.com/

None of the "Ubuntu based" distributions are supported here

Can you help with this problem?

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