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.