Richard Hughes (![[info]](http://p-stat.livejournal.com/img/userinfo.gif){kind=small} hughsient) wrote,@ 2008-03-28 14:07:00 |
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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/pow
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:
Richard.
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/pow
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?
Richard.
