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Thread: Webcam not detected

  1. #1
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    Webcam not detected

    Hallo Everyone,

    I fixed up a Lenovo Thinkpad T520 with Ubuntu 18.04 for a friend but we have found that the webcam is not recognised.

    "Cheese" could not find the webcame and we ran "dmesg | grep usb" but there was no sign of it.

    Can anyone help me with this? Maybe software/utilities that we can install? Or further diagnostics that we can run?

    Many thanks,
    Alan in Cologne

  2. #2
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    Xubuntu 19.10 Eoan Ermine

    Re: Webcam not detected

    Please run
    Code:
    lsusb
    and post the results in CODE tags.
    Bringing old hardware back to life. About problems due to upgrading.
    Please visit Quick Links -> Unanswered Posts.
    Don't use this space for a list of your hardware. It only creates false hits in the search engines.

  3. #3
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    Re: Webcam not detected

    I will try to get hold of that but, in the meantime, I ran "lsusb" on MY laptop (which has a working webcam) and there seemed to be no indication of the webcam ...

    Code:
    Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
    Bus 001 Device 005: ID 8087:0a2b Intel Corp. 
    Bus 001 Device 003: ID 058f:3822 Alcor Micro Corp. 
    Bus 001 Device 004: ID 046d:c064 Logitech, Inc. M110 corded optical mouse (M-B0001)
    Bus 001 Device 002: ID 1a40:0101 Terminus Technology Inc. Hub
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Or does one of the above indicate that a webcam is supported?

    On MY laptop the command "dmesg | grep usb" returns a webcam ...

    Code:
    [   12.520791] input: HD Webcam: HD Webcam as /devices/pci0000:00/0000:00:14.0/usb1/1-3/1-3:1.0/input/input11
    But on the laptop I am diagnosing there is no line indicating a webcam.

    Anyway, I will try to get the outputs from the laptop I am diagnosing: I need to get that output sent to me.

    Yours,
    Alan

  4. #4
    Join Date
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    Re: Webcam not detected

    Quote Originally Posted by asearle View Post
    Code:
    Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
    Bus 001 Device 005: ID 8087:0a2b Intel Corp. 
    Bus 001 Device 003: ID 058f:3822 Alcor Micro Corp. 
    Bus 001 Device 004: ID 046d:c064 Logitech, Inc. M110 corded optical mouse (M-B0001)
    Bus 001 Device 002: ID 1a40:0101 Terminus Technology Inc. Hub
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Or does one of the above indicate that a webcam is supported?
    Try to google "058f:3822" webcam (including the quotes).
    Bringing old hardware back to life. About problems due to upgrading.
    Please visit Quick Links -> Unanswered Posts.
    Don't use this space for a list of your hardware. It only creates false hits in the search engines.

  5. #5
    Join Date
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    341

    Re: Webcam not detected

    Many thanks: So, yes, my laptop is detecting my WebCam.

    The laptop I am diagnosing returns this output ...

    Code:
    Bus 002 Device 003: ID 0bdb:1911 Ericsson Business Mobile Networks BV
    Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
    Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    ... which doesn't seem to include the WebCam(?)

    Does that mean that for some reason it is not physically connected? Or is faulty? Or are there other diagnostics that we can do?

    Many thanks,
    Alan

  6. #6
    Join Date
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    Xubuntu 19.10 Eoan Ermine

    Re: Webcam not detected

    Just guessing here: Is it enabled in BIOS/UEFI?

    On the computer where the camera is displayed: The command
    Code:
    sudo lsusb -v -d 058f:3822
    shows a list of details (in case you need to investigate more).
    Bringing old hardware back to life. About problems due to upgrading.
    Please visit Quick Links -> Unanswered Posts.
    Don't use this space for a list of your hardware. It only creates false hits in the search engines.

  7. #7
    Join Date
    Jan 2006
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    341

    Re: Webcam not detected

    Dear Moergaes,

    Bingo! Yes, many thanks: It was switched off in the BIOS.

    Indeed, I believe that this particular "friend" specifically requested that I completely deactivate the webcam ... for his security! Then a year or two later he complains to me that the webcam doesn't work. Arrrggghhh! They can't have it both ways

    Cheers,
    Alan

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