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Old 11-17-2007, 07:00 PM   #1
mlfarrell
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snd_hda_intel + waikiki chip + hp dv8230 us = extreme extreme frustration


I'm at my wits end with this stupid laptop.

My latest annoyance deals with the inability to record using my laptop's sound card in linux without rebooting all the way into windows. I've upgraded to every version of alsa that has released, and each one has been worse than the currently patched 1.0.14 rc3 that I have now. The one I have now works fine for sound output, but when I record, I get a very noisy high pitched screech overtop all of the audio, plus a very strange looking waveform in audacity. In fact, the unusual shape of the waveform can be a clue as to whats wrong with the capture code in the driver.

I've tried applying numerous patches I've found online to my existing setup, including
members.dsl-only.net/~tdavis/alsa-patches/conexant-latest-rc3.patch

which everyone claims to fix the microphone problem. My only problem is that file is now no longer available. I tried a file conexant-test19a.patch which used to be offered on the same site but its changes did not fix my recording problem.

Any advice from the audio programming experts here will be useful.

My laptop model is hp dv8230us and my card is Conexant CX20551 (Waikiki)

Please don't ask me to do menial thinks like check kmix/alsamixer, run alsaconf, or upgrade to the latest alsa. I also cannot apply patches against the latest alsa as its version of snd-hda-intel actually sets up volume sliders incorrectly for my laptop. I'm not even sure how I got the version I'm using anymore, but I'd be glad to send an expert my code if they want to see it.

Last edited by mlfarrell; 11-17-2007 at 07:04 PM.
 
Old 11-17-2007, 09:02 PM   #2
Brian1
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Registered: Jan 2003
Location: Seymour, Indiana
Distribution: Distribution: RHEL 5 with Pieces of this and that. Kernel 2.6.23.1, KDE 3.5.8 and KDE 4.0 beta, Plu
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I know at one time I had to use alsamixer to define the capture to the correct input. I don't recall how I did that though.

Brian
 
Old 11-17-2007, 11:37 PM   #3
Electro
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Did you post a bug report at alsa-project.org?

Did you compile the driver with the debug option?

What is the ALSA version that you are using now?

Did you try to provide an model option to force it to a certain model?

Did you try to use the msi_enable option?

Normally, alsamixer shows a few parts. If you use alsamixer -V all it will provide everything.
 
Old 11-18-2007, 12:59 AM   #4
mlfarrell
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Did you post a bug report at alsa-project.org?
- awhile ago yes

Did you compile the driver with the debug option?
- yes, none of the test controls help

What is the ALSA version that you are using now?
- 1.0.14rc3 because it was the last version to give me correct volume sliders (though no version through 1.0.15 can record right)

Did you try to provide an model option to force it to a certain model?
- tried every possible model option

Did you try to use the msi_enable option?
- no, what does this do?

Normally, alsamixer shows a few parts. If you use alsamixer -V all it will provide everything.
- same as kmix, nothing new


I'm currently working with one of the developers of the driver through email, I'll post anything if I find a solution as I know there are other people out there with my chip that have trouble recording.
 
Old 11-18-2007, 10:19 PM   #5
Electro
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I do not have an audio recording problem, but I did have problems getting sound to work. I upgraded to 1.0.15 and the sound worked. ALSA said it detected that my sound card uses SigmaTel STAC9205. Also recordings work also, so you can say I am the lucky one. Though my notebook computer is a Dell Inspiron 1520.

Good luck.
 
  


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