[CentOS] System beeps in kernel 2.6.18-194

[Rob Kampen]

On Aug 31, 2010, at 9:40 AM, Glenn Eychaner <geychaner at mac.com> wrote:

> On Aug 31, 2010, at 9:36 AM, Glenn Eychaner wrote:
>
>> On Aug 26, 2010, at 12:00 PM, centos-request at centos.org wrote:
>>
>>>> ?Is there someplace can I find *detailed* release notes on the  
>>>> differences between -164 and -194 kernels to help in looking for  
>>>> the problem, pinning it down, and submitting a patch (and/or  
>>>> building my own kernel), or should I just download the SRPMS and  
>>>> dig in?
>>>
>>> You can find kernel changelog diffs here (maintaind by Alan  
>>> Bartlett):
>>>
>>> http://www.centos.toracat.org/ajb/kernel-clog-diff/
>>
>> Is there any place that I can find RPM or SRPM packages for the  
>> kernels between 18-164 and 18-194 that are listed in this kernel  
>> log?  It would really help narrow down the problem if I could just  
>> build each kernel version and test it; then at least I'd only have  
>> one set of differences to go through rather than 30.
>
>
> Having read the kernel log diff list, and searched it for items  
> related to "sound", I'm really suspicious of the following listed  
> change:
>
> * Mon Dec 21 2009 Jarod Wilson <jarod at redhat.com> [2.6.18-183.el5]
> [...]
> < - [sound] alsa hda driver update for rhel5.5 (Jaroslav Kysela)  
> [525390]
>
Seeing this reminded me of a sound problem I had with the 194 kernel.  
I did a kernel rebuild minus the patch. Found that I needed to edit  
the modprobe.conf file and explictly define the order for the sound  
cards. For some reason prior kernels were happy with just one index=0  
line for my intel device. With later kernel I needed to also add an  
entry for another sound device I didn't know I had and define it as  
index=1.
HTH
> How do I go about backing out this change (reverting the alsa hda  
> drivers in the -194 kernel to the -164 kernel versions) for testing?
>
> -G.
> --
> Glenn Eychaner (geychaner at lco.cl)
> Telescope Systems Programmer, Las Campanas Observatory
>
>
>
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