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Re: No sound from Gnash in Iceweasel or Epiphany or from VLC

(Please try to turn off the HTML part of your messages.)

On Sat, Apr 07, 2012 at 14:19:15 -0400, Kevin Williams wrote:
> Hi,
>  The video works just fine in both applications, but it has no sound.
>  However, I can play ogv videos with sound just fine from Gnome Sound
>  Recorder and Totem Movie Player.
>  My preferred sound device is a Plantronics .Audio 646 DSP usb
>  headset. I have also tried plugging in a set of Apple ear buds to the
>  traditional sound jacks. I do not get any sound from any source when
>  attempting to play videos from VLC, Iceweasel, or Epiphany.
>  I am using Debian Squeeze.

Are you using Gnome with pulseaudio? If you are not sure then post the
output of:

  dpkg -l \*pulse\* | awk '/^ii/{print $1,$2,$3}'


>  # lspci -knn | grep -iA2 audio
>  00:14.2 Audio device [0403]: ATI Technologies Inc SBx00 Azalia (Intel HDA) [1002:4383] (rev 40)
>  Subsystem: ASUSTeK Computer Inc. Device [1043:8410]
>  00:14.3 ISA bridge [0601]: ATI Technologies Inc SB700/SB800 LPC host controller [1002:439d] (rev 40)
>  --
>  01:00.1 Audio device [0403]: ATI Technologies Inc Redwood HDMI Audio [Radeon HD 5600 Series] [1002:aa60]
>  Subsystem: Dell Device [1028:aa60]
>  02:00.0 USB Controller [0c03]: NEC Corporation uPD720200 USB 3.0 Host Controller [1033:0194] (rev 03)
>  # cat /proc/asound/cards
>   1 [DSP ]: USB-Audio - Plantronics .Audio 646 DSP
>             Plantronics Plantronics .Audio 646 DSP at usb-0000:00:13.0-1, full speed

It seems that your two internal audio devices are not supported by
Squeeze's kernel (unless you took active measures to prohibit loading of
the corresponding kernel modules); this explains why you do not hear
anything when you use standard headphones plugged into the 3.5mm TRS

How do you want to proceed? Try to get the Azalia device working or
focus on the plantronics USB headset?

If you are content using the USB headset then my guess would be that you
have to ensure it is recognized as ALSA card number 0. The most common
cause of problems like yours - some applications play sound just fine
while others fail - is that the problematic applications are not
flexible enough to handle systems which have no card 0 or on which card
0 is broken.

The quickest way to check if this is your problem is to unplug the USB
headset and then run as root:

  modprobe -r snd_usb_audio
  modprobe snd_usb_audio index=0

Then plug in the headset again, verify that it is card 0 now (cat
/proc/asound/cards should show " 0 [DSP ]: USB-Audio ...") and try if
Gnash and VLC work.

Regards,            |
          Florian   | http://www.florian-kulzer.eu

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