[SOLVED] Firefox with No Sound

finaccio · 02-06-2011, 03:16 AM

Hi!

I am having problem with sound in Firefox when I try to watch videos.
The video start but without sound
Can you help me?

Thanks

Mirco

Ilgar · 02-06-2011, 03:58 AM

Please give more information, like your version of Slackware, the videos you want to watch (are they flash?) and and whether there is any other audio application running when this happens. If it is flash videos, something else must be blocking your sound card.

Edit:

With some sound cards, ALSA's sound mixing is problematic, that is, you may have trouble playing several sounds simultaneously. Below is the file .asoundrc (note the dot at the beginning) in my home directory. I use it to set up proper sound mixing for my HDA Intel card, you may need something of this sort. With this .asoundrc file, you should configure all software to use the default alsa device (which is the default action, anyway). But before editing .asoundrc check the other things I mentioned above.

Code:

pcm.my_mic {
	type route
	slave {
		pcm "plughw:0"
	}
}

pcm.swmixer {   
  type dmix 
  ipc_key 1234
  slave {
  pcm "hw:0,0"
  period_time 0
  period_size 1024
  buffer_size 4096
  rate 44100
  }
}

pcm.!default {
	type asym
	playback {
		pcm "swmixer"
	}
	capture {
		pcm "my_mic"
	}
}

finaccio · 02-06-2011, 04:03 AM

Here you are info !

- Slackware 13.1
- Yes, I would like to see Flash videos (youtube)
- I do not know if there is another audio application running when it happens, how can I see that?

finaccio · 02-06-2011, 04:12 AM

I have just seen I do not have .asoundrc file !!!
Where should it be ?

Ilgar · 02-06-2011, 04:17 AM

There is no .asoundrc by default, you can create it in your home directoy.

Can you post here what output

Code:

fuser -v /dev/snd/* /dev/dsp*

gives when you play the video?

finaccio · 02-06-2011, 04:23 AM

Cannot stat /dev/dsp*:No such file or directory

Ilgar · 02-06-2011, 04:35 AM

Then you could run the command without the /dev/dsp* part.

Are you using the stock kernel? It seems you have no OSS emulation (I\m using a custom kernel and don't know what the stock one does). By the way, how did you install the flash plugin?

finaccio · 02-06-2011, 04:46 AM

Yes I am using stock kernel and I installed flashplayer from Slackbuilds

Ilgar · 02-06-2011, 04:51 AM

You didn't give the output of the command. If it gives empty output then it's really weird. Does your sound really work?

Also, to make sure there is no mistake arising from the slackbuild: Go to Adobe's website and download the .tar.gz file for Linux. Unzip it, there will be just one file, libflashpayer.so extracted. Copy it to /usr/lib/mozilla/plugins, then restart Firefox.

finaccio · 02-06-2011, 05:56 AM

Done, I saw video but I heard anything

Ilgar · 02-06-2011, 06:56 AM

You mean heard "nothing"?

Finaccio you are not giving enough details. What output did

fuser -v /dev/snd/*

give? Does your audio work in other applications? When did this problem begin, is this a newly installed system or what? What is your sound card? Try to give as many details as possible.

finaccio · 02-06-2011, 07:46 AM

Sorry Ilgar,

Below my soundcards:

00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 05)
01:00.1 Audio device: ATI Technologies Inc RV710/730

I installed Slackware 13.1 4 month ago and I went always perfect (also the sound)

Then, suddenly, this morning, when I was watching yotube video, I noticed the sound was gone.

However, the command fuser -v /dev/snd*, executed on shell when I am watching videos on Firefox, do not give any output

THanks

Finaccio

Ilgar · 02-06-2011, 09:35 AM

Now that's strange. Because anything using ALSA should appear in the output of fuser -v /dev/snd*. Somehow Flashplayer doesn't do it. Did you make any software installations recently?

Another strange thing is that, the config file of the stock kernel has OSS emulation enabled, then you should have the /dev/dsp device. Are you sure you don't have it?

Finally, when you run alsamixer, HDA Intel (and not the other one) is the one you see, right?

If you have libflashplayer.so lying around from another installation (maybe in /usr/lib/firefox/plugins) make sure they are removed.

Also, tell me if you have the file

/usr/lib/oss/lib/libflashsupport_32.so

finaccio · 02-06-2011, 11:16 AM

Ilgar,

I have finally solved the problem. I have just re-installed either Firefox or Flash plugin

Thanks a lot for your help and patience!!1

Have a nice evening

Finaccio

Ilgar · 02-06-2011, 11:38 AM

Glad to hear that. A reinstall of Firefox and alsa would be my next suggestion, since something looked really broken.