HP laptop built-in webcam disappeared between Xubuntu 16.04 and 18.04

[Wade Smart]

Mark, is this similar to yours?

HP EliteBook 8740w XT910UT 17-Inch Laptop

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Registered Linux Machine: #408606
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On Wed, Jul 8, 2020 at 12:37 AM MR ZenWiz <mrzenwiz at gmail.com> wrote:
>
> I have an HP8740 laptop (I know, it's old, but it has 1920x1200 res on
> a 17" screen that I like a lot).
>
> I upgraded it from 16.04 to 18.04 in July 2018 after the LTS .1
> release came out.  I recently had a use for the webcam that is built
> in, but the entry in lshw disappeared between the releases.
>
> Here is what lshw showed for the device in 16.04:
>
>                   *-usb:2
>                       description: Video
>                       product: HP Webcam [2 MP Macro]
>                       vendor: Chicony Electronics Co., Ltd.
>                       physical id: 5
>                       bus info: usb at 1:1.5
>                       version: 85.54
>                       capabilities: usb-2.00
>                       configuration: driver=uvcvideo maxpower=98mA
> speed=480Mbit/s
>
> Now there is nothing at all for that device, and the output format has
> changed a bit (the "*-usb:#" format is gone).  The roughly
> corresponding part of the output simply does not contain any entry for
> *-usb:2.
>
> Is the camera dead and how can I tell?  Is it possible I disabled the
> camera and it died or at least refuses to respond, and if so, how can
> I fix that?
>
> If I hook up an external USB webcam, that works fine but the built-in
> is still invisible.
>
> I looked in Google and found some info re HP webcam issues, but none
> of it seems to apply to this specific model of webcam.
>
> Thanks.
>
> Mark
>
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