Re: Critical Sound Problem - very deep level - help needed !

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On Thu, 19 Apr 2007, Hemmann, Volker Armin wrote:

> On Donnerstag, 19. April 2007, Bill Unruh wrote:
>> On Thu, 19 Apr 2007, Alexey Eremenko wrote:
>>> hi all !
>>>
>>> My uptime in Linux doesn't really go over 2 days... why ?
>>>
>>> Because there is some very deep driver issue with my audio hardware,
>>> VIA 8237 audio.
>>> That is when working, my sound system suddenly fails, and starts to
>>> produce noise. - the problem is so deep that even "init 6" - full
>>> restart doesn't helps ! ! rcalsasound restart (ALSA service restart)
>>> doesn't help too.
>>
>> sorry, why are you rebooting? Just remove the driver? I there is stillsound
>> then I suspect hardware-- eg your disk drive is dieing, rather than the
>> soundcard.
>
> as he already wrote - he reboots to get sound back. MAybe you should read his
> mail again?

No, he states in the next sentence that upon reboot he still hears the
noise. Maybe you should read it again.

>
>>
>>> I still hear that noise even in GRUB Bootloader, where should be no
>>> sound at all ! ! !
>>
>> Since there is no sound driver then, that rules out Linux as a problem!
>
> no, since the sound in grub is the result of failing sound in linux, it is a
> linux problem.

When grub boots, Linux does not exist within his computer.

Now it is possible that Linux puts the driver into such a state that it
creates noise, even in the absense of any driver. This is certainly a
hardware bug in the soundcard.


>
>>
>>> That is very old bug, affecting SUSE Linux 10.0 and maybe earlier...
>>
>> No, it is a problem with your system, not with Linux. If it makes the sound
>> when Linux is not there, then the problem is NOT linux.
>
> The sound is the result from running linux, so it is a linux problem.

I am afraid that I disagree. It is a harware bug. Now Linux may trigger
that bug. -- eg the LG CDRom drives which had a firmware bug in the command
set which, contrary to their claim, would put the CD into the firmware
rewrite mode when an innocuous ( according to their own specs) command was
sent to it. That was a bug in firmware on the CDrom, even though that bug
was triggered because Mandriva used that command.


>
>>
>>> link in openSUSE bugzilla:
>>> https://bugzilla.novell.com/show_bug.cgi?id=263022
>>>
>>> Platform: openSUSE 10.2, alsa 1.0.13, 32-bit, AMD Sempron, VIA KM400
>>> chipset, VIA
>>> 8237 audio, 1GB of RAM.
>>>
>>> Things that help:
>>> -Reboot into Windows, (windows drivers seem to restart my audio hardware)
>>> -System shutdown via init 0, and then cold-start
>>>
>>> any ideas?
>>
>
> one question, when sound fails, does this correlate with, like someone
> switches on the light or some electrical device?
>
> A friend of mine had a funny problem - everytime someone switched on/off
> light, his sound was gone...

Again, almost certainly a hardware bug in the sound card.


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