[alsa-devel] ad1988 spdif crackling (includes patch)

Takashi Iwai tiwai at suse.de
Mon Nov 5 12:37:41 CET 2012

At Tue, 30 Oct 2012 13:02:27 +0100,
Robin Kreis wrote:
> Hi!
> For nearly three years, a bug has been known to cripple SPDIF output on
> certain hardware.  It might work fine for a while, but will randomly
> break, showing two symptoms:  PCM audio is distorted (similar to
> clipping) while compressed audio (AC3 or DTS) will not work at all.
> Muting an unmuting the master channel may temporarily fix it.
> This affects at least all Asus P5B and P6B mainboards.
> The solution is a simple one-liner, and has been known for a year:  
> http://fjerhammer.dk/ad1988_spdif_crackling.patch (credits go to Javeed
> Shaikh for the patch and fjerhammer for hosting it).  I can verify that
> it fixes all issues on my setup.  Please apply it.
> See also:
> https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/359361

Now applied the fix.  Thanks for reporting.


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