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Date:      Wed, 15 Apr 2020 10:35:25 +0000
From:      Marcin Cieslak <saper@saper.info>
To:        Hans Petter Selasky <hps@selasky.org>
Cc:        Jan Beich <jbeich@FreeBSD.org>, freebsd-chromium@freebsd.org
Subject:   Re: No webcam in chrome (works in firefox)
Message-ID:  <nycvar.OFS.7.77.840.2004151027170.49460@z.fncre.vasb>
In-Reply-To: <r1wz-cac2-wny@FreeBSD.org>
References:  <CAMODbkmYqnhq8cyHukBmttAEkrPE6xcVPrVgzgUN34BRGgMLqQ@mail.gmail.com> <o90z-tsh2-wny@FreeBSD.org> <nycvar.OFS.7.77.840.2004071842560.49460@z.fncre.vasb> <c16fd036-06e9-2d1e-d845-032a0b3a4d74@selasky.org> <r1wz-cac2-wny@FreeBSD.org>

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On Tue, 7 Apr 2020, Jan Beich wrote:

> Neither www/firefox nor www/chromium use libv4l nowadays.
>

Ok, after https://reviews.freebsd.org/D24330 the webcam is detected.

I am getting a green flicker however and I have filed for this a new bug:

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=245505

Hans Petter - I get the same green screen when launching the webcam for
a first time with pwcview - the picture remains green until the webcam
sends something. Where is this "green" thing coming from? Is it an empty
webcam buffer? Is there any additional debugging in webcamd I can try?

to sum up:
-  the green picture appears once in pwcview until the webcam appears to work,
    after this it works stable

- the green picture never appears in firefox

- green screen flashes accross the webcam picture whenever I use chromium


Also:

participants in the Zoom meeting cannot hear my audio at all (the audio
device gets connected, and I can enable it in chromium).
I have noticed few ioctl warnings and filed them under
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=245624
but maybe those are not related at all.

Any ideas how to troubleshoot this? The mic works fine otherwise (also in firefox).
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