Clicking of snd_hda_intel

I've installed Fedora 9 Beta on a laptop with a snd_hda_intel sound card. Every time that alsa powers up the card (from, I guess, a sleep state) I get a speaker and ear popping *click* before the sound effect. I've found Linux is being very aggressive in powering down my soundcard by setting CONFIG_SND_HDA_POWER_SAVE_DEFAULT=5 (seconds). I was playing with the timeout like this: echo 0 > /sys/module/snd_hda_intel/parameters/power_save So I can actually use my laptop, I've disabled the powersaving doing this: sudo echo “options snd_hda_intel power_save=0″ >> /etc/modprobe.conf So, is it:

  • My laptop being crap that it can't power on the soundard with out a DC click.
  • Linux setting a much too low timeout value
  • An ALSA bug that is worth pursuing?

Ideas welcome. Richard.

One response to “Clicking of snd_hda_intel”

  1. Anonymous

    hi Richard! I guess you've read the ALSA Documentation/powersave.txt, but it's worth mentioning here: “Note that you might hear click noise/pop when changing the power state. Also, it often takes certain time to wake up from the power-down to the active state. These are often hardly to fix, so don't report extra bug reports unless you have a fix patch ;-)”

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