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

[Wade Smart]

Mark, this is a post I used for a Thinkpad recently when
the webcam had issues. You might read through it just to
see if you have done this too

https://askubuntu.com/questions/1062331/integrated-webcam-not-working-after-upgrade-to-18-04
-- 
Registered Linux User: #480675
Registered Linux Machine: #408606
Linux since June 2005

On Wed, Jul 8, 2020 at 6:19 AM Wade Smart <wadesmart at gmail.com> wrote:
>
> Mark, is this similar to yours?
>
> HP EliteBook 8740w XT910UT 17-Inch Laptop
>
> --
> Registered Linux User: #480675
> Registered Linux Machine: #408606
> Linux since June 2005
>
> 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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