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Linux From Scratch This Forum is for the discussion of LFS.
LFS is a project that provides you with the steps necessary to build your own custom Linux system.


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Old 07-04-2005, 01:49 PM   #1
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Sound Problems

I have mostly finished the BLFS book and I can't seem to get sound to work. As root, i can crank the volume up all the way, resulting in a hiss from my speakers, so I know that is working. I cannot, however, get mpg123, xine, or xmms to play audio. sometime xmms says something about being unable to understand wave files, although I have the wave plugin installed. As a non-root user, in gnome, I do not have any volume control. The volume icon has a slash through it and clicking on it results in a message of: "Couldn't open mixer device /dev/sound/mixer."

I am using an IBM a20m Thinkpad. It has a Cirrus Soundfusion CS4614 soundcard. lspci sees the soundcard, and the drivers are configured into the kernel. gnome is set to use alsasink ans alsasrc.

Any help would be greatly appreciated.
Old 07-04-2005, 10:43 PM   #2
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Hi eDog....

was thinking .... a manner to know if the kernel is recognizing your soundcard is through the dmesg command... so open a terminal and try the "dmesg " command .... try to identify messages from the kernel about your soundcard (according to your motherboard or souncard's specs"

maybe your kernel is not recognizing your soundcard..... in such a case I would recommend a kernel upgrade (backup your info up first)
Old 07-04-2005, 10:53 PM   #3
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If you can get sound as root but not as user, then its a permission problem. This can be solved by adding the user to the "audio" group. Then sound would work for the user.

What sound server are you using?
Old 07-05-2005, 05:24 AM   #4
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Distribution: Gentoo, Ubuntu
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dmesg has a line that reads:
"ALSA device list:
#0: Sound Fusion CS46xx at0xf2100000/0xf4000000, irq 11"
so I'm assuming the kernel is finding the card.

I have added myself to the audio group but that didnt change anything. I have also tried using Esd, alsa, and oss with no luck.
Old 07-05-2005, 08:24 AM   #5
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go to, download the audio player. It might work depending on your distro
Old 07-05-2005, 10:15 AM   #6
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I have already installed mpg123 and it doesnt seem to work either. I may be missing something in its usage, however, that still does not solve the problem of non-root users accessing the apparently non-existent /dev/sound/mixer.

Thanks for the ideas everyone, please keep them coming if you have any.
Old 07-05-2005, 12:46 PM   #7
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I think your sound card is a new one... I mean new to the market...

I have a similar problem in configuring sound at my friends system... When confuguring RH9 OS.... It properly detected the sound card ( i don't remeber the card gener )... but null output...

We have to wait until the release of Mandrake 10.0 to make his sound card work...
That was the problem with the driver... The driver that come with your kernel may be at early stage of developement...

Please visit the ALSA home page at and check your soundcard support. and please be patient for the latest release of your favourite distribution.
Old 07-14-2005, 09:57 PM   #8
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Registered: Jul 2005
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I had a similar problem with my Sound Fusion CS46XX card. I observed that the "ADC" and "DAC" in the "Input" tab of kMix were set to 0. I increased the values of these and I get the sound now. Note that this may have to be done separately as each user in kMix. Doing this only in root will do it only for root.


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