Re: [Alsa-user] nForce 430 / ASUS M2NPV-VM snd_hda_intel (surround) sound problems

[Trevor B. <tg...@sf...>]

For reference, I've fixed this problem.  Be sure not to just do an rmmod 
of snd_hda_codec, but *every* snd module.  Do an lsmod and rmmod 
everything that looks like snd*.  I was trying to reload snd_hda_codec 
while leaving other alsa 1.0.11 drivers loaded.

That should have been obvious, but it wasn't.

No clue if 1.0.14rc2 works at all (I'm sshing to home to fix it), but at 
least I have updated drivers.

Thanks for the advice Oliver.  Eventually I got it. :)

Trevor Bradley

Oliver Lupton wrote:
> Trevor Bradley wrote:
>> As posted to linuxquestions.org.  They redirected me here...
>>
>> ---
>>
>> Please, for the sweet love of Zombie Jeebus, help me.
>>
>> I have two machines using an ASUS M2NPV-VM motherboard, both running 
>> Slackware Linux 11.0. One machine is my home file+web server and 
>> MythTV backend (with 2.0 speakers). The other machine is my HTPC 
>> frontend and dual-boots to XP and Linux. That machine now has 5.1 
>> speakers that work great in
>>
>> It's a great motherboard and Linux works well on both, except for the 
>> sound. I can compile snd_hda_intel and it *kind of* works. If you 
>> touch the alsamixer volume, occasionally the sound dies. Or sometimes 
>> the sound doesn't come up at boot. Or, sometimes, if you mute and 
>> unmute the sound in alsamixer on the 5.1 speakers, 5 of the 6 
>> speakers start working. Or sometimes if you rerun alsaconf and 
>> alsamixer it starts working again, but often it doesn't. Mostly, 
>> sound doesn't work and it's frustrating.
>>
>> I've read around for various solutions, and decided to attempt to 
>> upgrade my alsa-driver to 1.0.13. However when I attempt to modprobe 
>> snd_hda_intel, I get the following error:
>>
>> FATAL: Error inserting snd_hda_intel 
>> (/lib/modules/2.6.18.2/kernel/sound/pci/hda/snd-hda-intel.ko): 
>> Unknown symbol in module, or unknown parameter (see dmesg)
>>
>> If I run dmesg, I get get errors of the type:
>>
>> snd_hda_intel: Unknown symbol snd_verbose_printk
>> snd_hda_intel: Unknown symbol snd_verbose_printd
>> snd_hda_intel: Unknown symbol snd_hidden_kzalloc
>> snd_hda_intel: Unknown symbol snd_hidden_kcalloc
>> snd_hda_intel: Unknown symbol snd_hidden_kfree
>>
>> using depmod on snd_hda_intel actually appears to delete the 
>> snd_hda_intel drivers!
>>
>> I've seen other posts mention "Unknown symbol", only to have the 
>> original poster come back and say they've "fixed the problem" with no 
>> further data. I can get things somewhat back to normal by recompiling 
>> my kernel snd_hda_intel drivers using make modules_install from my 
>> kernel directory.
>>
>> This is driving me nuts. Getting sound working on my HTPC and 
>> MythBackend is the one thing holding me back from using my 
>> mythfrontend properly.
>>
>> Does anyone have any suggestions, or links to threads with concrete 
>> solutions? I appreciate the help.
>>
>> Trevor Bradley
>> Surrey, B.C., Canada
>
> I use Gentoo rather than Slackware, so that's where my experience 
> lies. But whenever I've seen the endless undefined symbol errors it's 
> been when working with both externally compiled alsa-driver modules 
> and those distributed with the kernel. On Gentoo then the alsa-driver 
> ones get installed to a different path in /lib/modules/, maybe search 
> there and check you don't have two instances of the same modules?
> That's just what the issue has been whenever I've seen or heard about 
> it, it could be something different.
>
> Out of interest, what chipset does your card have? I've been having 
> endless problems trying to get 5.1 to work at all on my Asus (A8N-VM 
> CSM, AD1986A chipset) using the hda-intel driver.
>
> Cheers,
> -ol


-- 
Trevor Bradley
Computer Systems Administrator
Systems and Technical Services (STS)
Learning and Instructional Development Center (LIDC)
Simon Fraser University, Surrey, B.C. Canada