Re: Intel Audio Pops

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Kevin DeKorte wrote:
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> Hash: SHA1
> 
> If you have an intel HDA audio card and it pops loudly you might try this.
> 
> Login as root and type
> 
> echo "options snd_hda_intel power_save=0" >
> /etc/modprobe.d/snd_hda_intel.conf
> 
> Then reboot...
> 
> That fixed the loud pops on my machine, please let me know if it
> corrects it on yours
> 
> This bug is related since enabling power_save killed my audio card in F9
> (since power save was on by default, and now that it is back in F11 it
> is causing problems again)
> 
> https://bugzilla.redhat.com/show_bug.cgi?id=433495
> 
> Kevin

Thanks Kevin -

Bug 433495 has some information about the power_save feature of this
driver causing pops when the device comes out of powersave mode.
Powersave was originally disabled for this reason, but after reports
that it had been fixed, it was re-enabled in the rawhide kernels.
However, reports of these problems have resurfaced, at least from Kevin.  :)

It appears that maybe only some hardware has this problem, so I'm
reluctant to throw out all power saving for an odd piece of hardware or two.

If you're experiencing the popping problem on this driver - and also if
you're not - it'd be great if you could attach the relevant device info
(from alsa-info.sh I suppose) to the bug so hopefully we can determine
which hardware is affected.  It may be possible to disable powersave for
just the problematic hardware without disabling it for the driver entirely.

If you are experiencing pops now, please test with the power_save=0
option to the module, and see if the problem goes away.

-Eric

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