Re: No sound after installation of ATI Radeon 2600 graphics card

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On Friday 07 March 2008 19:02, you wrote:
> Hi Nigel,
>
> thanks fo your reply.
>
> > Hi Gerd. You could post a bit of info please. The output of
> > cat /proc/asound/cards
> > /sbin/lsmod | grep snd
> > /sbin/lspci -v          (just the stuff that appears to refer to sound)
>
> Well, here ist is (and some more)
>
>  $ cat /proc/asound/cards
>  0 [nForce2        ]: NFORCE - NVidia nForce2
>                       NVidia nForce2 with ALC650F at irq 19
>  1 [HDMI           ]: HDA-Intel - HDA ATI HDMI
>
>                       HDA ATI HDMI at 0xe6010000 irq 11
>
> $ /sbin/lsmod | grep snd
> snd_seq_dummy           3492  0
> snd_seq_oss            29888  0
> snd_seq_midi_event      6912  1 snd_seq_oss
> snd_seq                46800  5
> snd_seq_dummy,snd_seq_oss,snd_seq_midi_event snd_seq_device          7276 
> 3 snd_seq_dummy,snd_seq_oss,snd_seq
> snd_pcm_oss            37216  0
> snd_mixer_oss          14784  1 snd_pcm_oss
> snd_hda_intel         284732  1
> snd_hwdep               7492  1 snd_hda_intel
> snd_intel8x0           29404  3
> snd_ac97_codec         96836  1 snd_intel8x0
> ac97_bus                2752  1 snd_ac97_codec
> snd_pcm                69636  5
> snd_pcm_oss,snd_hda_intel,snd_intel8x0,snd_ac97_codec
> snd_timer              19652  3 snd_seq,snd_pcm
> snd                    45092  17
> snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_hda_intel,
>snd_hwdep,snd_intel8x0,snd_ac97_codec,snd_pcm,snd_timer soundcore           
>    6624  1 snd
> snd_page_alloc          8456  3 snd_hda_intel,snd_intel8x0,snd_pcm
>
> $ grep sound-slot /etc/modprobe.conf
> alias sound-slot-0 snd_intel8x0
> alias sound-slot-1 snd_hda_intel
>
> $ lspcidrake -v | fgrep AUDIO
> unknown         : nVidia Corporation|nForce Audio Processing Unit
> [MULTIMEDIA_AUDIO] (vendor:10de device:006b subv:1043 subd:0c11)
>
> snd_intel8x0    : nVidia Corporation|nForce2 AC97 Audio Controler (MCP)
> [MULTIMEDIA_AUDIO] (vendor:10de device:006a subv:1043 subd:8095)
>
> This all look pretty all right to me....
>
> > You could also download the alsa-info.sh script from
> > http://hg.alsa-project.org/alsa/raw-file/tip/alsa-info.sh
> >
> > Make it executable, and run it as user, as below.
> > ./alsa-info.sh
> >
> > It will gather a lot of info about the sound on your machine, and upload
>
> it > to pastebin. Just post back the link to the pastebin reference when
> you > reply.
>
> Here it is:
> http://pastebin.ca/932306
>
> I apologize, for my email not going to the right thread, but I dont have
> the message ID.
>
> Thanks a lot
> Gerd

Hi Gerd. Thanks for all the info. Even though the cards are ordered correctly 
in /proc/asound/cards, I think there is some conflict going on between 
snd-intel8x0, and snd-hda-intel (which appears to be being loaded due to this 
sound component on your new graphics card). I say this because if you look at 
snd-hwdep on your lsmod above, it shows as below.
 snd_hwdep               7492  1 snd_hda_intel

It should be showing snd-intel8x0, not snd-hda-intel, and I think if you 
removed your new graphics card, and rebooted, you would find that is so, and 
your sounds would come back. The answer I believe is to prevent snd-hda-intel 
being loaded when you bootup.

There's a couple of things, I'd suggest.
1st: If you have an /etc/modprobe.d/blacklist file, blacklist snd_hda_intel.
This doesn't always work though, so, as an alternative.
2nd: Create an entry in /etc/modprobe.conf as below.
install snd_hda_intel /bin/true

This should load the module in /bin/true where it can't do anything at all.

See if either of those resolves the problem. Another alternative is to 
rename/remove the snd_hda_intel module in /lib/modules for your kernel, and 
this way the kernel will not be able to load it, because it won't be able to 
find it.

All the best.

Nigel.


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