no sound in firefox youtube videos (HTML5)

Giuseppe Pagnoni gpagnoni at
Fri Nov 27 17:05:07 UTC 2015

Thank you very much: I rebuild firefox without selecting pulseaudio, and 
it works now!  It's not very clear to me why alsa and pulseaudio are 
incompatible (since you can select them both), but I am quite happy with 
the results.

very best

On 11/27/15 14:45, lokadamus at wrote:
> On 11/27/15 11:38, Giuseppe Pagnoni wrote:
>> Hi all,
>> I have installed firefox from the ports tree but I cannot get any sound
>> from youtube videos (HTML5, so this is not a flash issue).
>> The configuration for the firefox build is:
>> ===> The following configuration options are available for firefox-42.0,1:
>>       BUNDLED_CAIRO=off: Use bundled fork of cairo-1.9.5
>>       CANBERRA=off: Sound theme alerts
>>       DBUS=on: D-Bus IPC system support
>>       DEBUG=off: Build with debugging support
>>       DTRACE=off: Build with DTrace probes
>>       GCONF=off: GConf configuration backend support
>>       GIO=on: Use GIO for file I/O
>>       GNOMEUI=off: libgnomeui support module
>>       GSTREAMER=on: Multimedia support via GStreamer
>>       INTEGER_SAMPLES=off: Integer audio sample format
>>       LIBPROXY=off: Proxy support via libproxy
>>       OPTIMIZED_CFLAGS=on: Use extra compiler optimizations
>>       PGO=off: Use Profile-Guided Optimization
>>       PROFILE=off: Build with profiling support
>>       TEST=off: Build and/or run tests
>> ====> Options available for the multi AUDIO: you have to choose at least
>> one of them
>>       ALSA=on: ALSA audio architecture support
>>       PULSEAUDIO=on: PulseAudio sound server support
>> ====> Options available for the single TOOLKIT: you have to select
>> exactly one of them
>>       GTK2=on: GTK+ 2 GUI toolkit support
>>       GTK3=off: GTK+ 3 GUI toolkit support
>> and my system is an amd64 10.2-RELEASE.
>> Note that I can hear the audio fine if I open the same video in chrome.
>> Thanks in advance for any help, let me know if you need more info
>> best
>> giuseppe
> Have you realy set ALSA and Pulseaudio on? You need only ALSA.
> Greetings

Giuseppe Pagnoni
Dip. Scienze Biomediche, Metaboliche e Neuroscienze
Sezione Fisiologia e Neuroscienze
Univ. di Modena e Reggio Emilia
Via Campi 287
I-41125 Modena, Italy
Tel: +39-059-205-5742
Fax: +39-059-205-5363

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