Firefox on XO

Fri Jan 6 23:12:59 EST 2017

A little more on this...

I looked at some HTML5 audio and video tutorial sites as below, and found
that the demonstrations on these sites *all work* just fine with sound in
Firefox Ver 26 as installed from the repo ($ sudo yum update; sudo yum
install -y firefox)

Demo Sites - working sound

    www.w3schools.com/html/html5_audio.asp

    www.w3schools.com/html/html5_video.asp

     butlerccwebdev.net/support/html5-video/audio-demo.html

     www.html5rocks.com/en/tutorials/webaudio/intro

Also the YouTube sites work OK with sound.

So obviously FF on XO is quite capable of delivering sound for a certain
range of websites, but not for others.
Understanding the difference between working and non-working web sites may
provide a clue as to what is going on.

Curiously, I found that the FF ver 50 version crashes when you try to load
up the w3chools demo pages even before trying to start the audio.

Thanks in advance to anyone who has the time and inclination to contribute
to this.

Regards
Terry

----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 5 Jan 2017 13:05:59 +1000
> From: T Gillett <tgillett at gmail.com>
> To: "Devel's in the Details" <devel at lists.laptop.org>
> Subject: Firefox on XO
> Message-ID:
>         <CAD58EkxxzZ_6UWZB0zgam2wLbC0ms-f0gMbm_34O+
> G3mqBZKDQ at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Hi James
>
> Thanks for the response.
>
> I installed Firefox on the 32020 build two different ways to test:
>
> 1. Using 'yum install' to get it from the repo. This installs Ver 26 as per
> your email.
> 2. Using the download (firefox-50.1.0.tar.bz2) from the Firefox downloads
> site which gives Ver 50.
>
> The behaviour of both versions with respect to the sound appears to be the
> same.
>
> The browsers will play an mp3 file when it is simply linked within a web
> site, (by default using the VLC plug-in according to the FF
> Preferences/Application dialogue) but will not play an mp3 file within
> simple HTML5 sites (eg our vt-motoli site)
> The Reading Eggs site works well visually (it won't work properly in
> Epiphany), but is absolutely silent. As far as I understand, this site is
> using Flash.
>
> It seems from some postings I read that FF expects to have Pulse Audio
> support on Linux systems (and this is not included in the XO software).
> So it is interesting that when you installed apulse, there is still an
> issue.
>
> Ref:
> https://www.reddit.com/r/firefox/comments/451074/
> firefox_to_make_pulseaudio_a_hard_requirement_on/
>
> regards
> Terry
>
>
>
> > Message: 1
> > Date: Wed, 4 Jan 2017 10:39:02 +1100
> > From: James Cameron <quozl at laptop.org>
> > To: devel at lists.laptop.org
> > Subject: Re: Firefox on XO
> > Message-ID: <20170103233902.GB5865 at us.netrek.org>
> > Content-Type: text/plain; charset=iso-8859-1
> >
> > G'day Terry,
> >
> > You didn't mention which version of Firefox.
> >
> > With firefox-26.0-2 from the Fedora 18 repository your no-sound issue
> > with those sites reproduces.
> >
> > Then I installed apulse, a PulseAudio emulation for ALSA, but the
> > problem persisted.  Looking at /proc/$(pidof firefox)/smaps the
> > libpulse libraries are not mapped.
> >
> > Which Firefox are you trying, and how are you trying it?
> >
> > References:
> >
> > https://github.com/i-rinat/apulse (source)
> > https://github.com/vitvegl/apulse-rpm (for the spec file)
> >
> > dependencies: gcc-c++ gcc-sh-linux-gnu cmake alsa-lib-devel glib2-devel
> > alsa-lib glib2
> >
> > On Sun, Jan 01, 2017 at 08:52:39AM +1000, T Gillett wrote:
> > > Hi All
> > >
> > > I have installed Firefox on the current 13.2.8 build on XO-1.5 and it
> > works OK
> > > except that there is no sound on some websites.
> > > Other sites work OK.
> > >
> > > This seems to be a known problem:
> > >     [1]https://bugzilla.mozilla.org/show_bug.cgi?id=803042
> > >     [2]http://forums.fedoraforum.org/showthread.php?t=277040
> > >     [3]https://ask.fedoraproject.org/en/question/65978/fedora-21-fi
> > > refox-3603-and-flash-no-sound-system-sound-fine/
> > >     [4]http://unix.stackexchange.com/questions/144395/
> > > firefox-html5-asoundrc-no-sound
> > >
> > > The issue seems to revolve around getting FF to use ALSA for sound, and
> > without
> > > installing PulseAudio.
> > >
> > > I am wondering if anyone using Firefox on XO has encountered and/or
> > solved this
> > > problem.
> > >
> > > Thanks in advance for any help on this.
> > > Terry
> > >
> > > ------------------------
> > >
> > > Some sites for testing the audio. Open any of these in a new tab and
> you
> > should
> > > hear audio.
> > >
> > > 1.    [5]http://student.readingeggs.com//sample_lessons/#/sample/
> > lesson/6/
> > > activity/1
> > > No sound on XO.
> > >
> > > 2.    [6]http://vt-motoli.org/CG/cg_03/cg_03.html#l-en
> > > No sound on XO.
> > >
> > > 3.    [7]http://robbbenson.com/01%20Eve.mp3
> > > Sound OK.
> > >
> > > References:
> > >
> > > [1] https://bugzilla.mozilla.org/show_bug.cgi?id=803042
> > > [2] http://forums.fedoraforum.org/showthread.php?t=277040
> > > [3] https://ask.fedoraproject.org/en/question/65978/fedora-21-
> > firefox-3603-and-flash-no-sound-system-sound-fine/
> > > [4] http://unix.stackexchange.com/questions/144395/firefox-
> > html5-asoundrc-no-sound
> > > [5] http://student.readingeggs.com//sample_lessons/#/sample/
> > lesson/6/activity/2
> > > [6] http://vt-motoli.org/CG/cg_03/cg_03.html#l-en
> > > [7] http://robbbenson.com/01%20Eve.mp3
> >
> > > _______________________________________________
> > > Devel mailing list
> > > Devel at lists.laptop.org
> > > http://lists.laptop.org/listinfo/devel
> >
> >
> > --
> > James Cameron
> > http://quozl.netrek.org/
> >
> >
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