sound problem in F20, F21, F22

[dwoody5654]

On 06/02/2015 11:37 PM, dwoody5654 wrote:
> On 06/02/2015 03:03 PM, Steven Stern wrote:
>> On 06/02/2015 01:52 PM, dwoody5654 wrote:
>>> Posted here and on alsa mailing list some time ago - many comments but
>>> none fixed the problem.
>>> This is the link to bug report:
>>> https://bugzilla.redhat.com/show_bug.cgi?id=1101278
>>>
>>> And now I am officially confused.
>>> To recap:
>>> This computer is used for Mythtv.
>>> The computer was build by me in 2007 using a Asus m2a-vm MB and until
>>> kernel 3.12.x sound has always worked. I always used alsa not 
>>> pulseaudio.
>>>
>>> The F20 initial release, sound worked with 3.11.10-301.fc20.i686+PAE
>>> All future releases of the kernel the sound did not work.
>>> Searched Asus for a bios upgrade to address the problem - no upgrade
>>> related.
>>>
>>> Tried the following live dvd releases (stock live session included
>>> pulseaudio) to no avail:
>>>
>>>     F21 xfce
>>>     F22 xfce
>>>     Centos 7.0
>>>     Linux mint 17.1
>>>
>>> Since F20 is EOL and should move to F21 I bought a sound card for the
>>> computer (Diamond brand from Best Buy).
>>>
>>> Booting the 3.11.x kernel.
>>> Sound card was recognized. I set Mythtv to use the new sound card. 
>>> Sound
>>> worked.
>>>
>>> Booting the 3.19.x kernel
>>> Sound card was recognized.
>>> Sound did not work.
>>>
>>> I put a new drive (spare) in the computer.
>>> Install F22 xfce instead of a live session. Sound card was recognized.
>>> Used Rhythmbox to test. No sound. Pulseaudio volume control clearly
>>> showed sound coming in.
>>>
>>> I thought that adding a sound card would have worked around the problem
>>> and it did not.
>>> I am clearly over looking something but do not know what.
>>>
>>> Any ideas on what to do or look for next will be very appreciated,
>>>
>>> David
Does it make any sense to get the source for the sound files from kernel 
3.11.10.x where the sound works and compile and replace the sound files 
in the F21/22 install?

Thanks,

  David