[alsa-devel] ugly sound output (intel-hda) [was: mmotm 2009-11-24-16-47 uploaded]

Takashi Iwai tiwai at suse.de
Fri Nov 27 11:45:46 CET 2009

At Fri, 27 Nov 2009 11:33:36 +0100,
Jiri Slaby wrote:
> On 11/25/2009 01:47 AM, akpm at linux-foundation.org wrote:
> > The mm-of-the-moment snapshot 2009-11-24-16-47 has been uploaded to
> Hi, when I boot into that kernel, I hear, since the boot phase, short
> scratches repeatedly every (just a guess) 100 ms.
> # cat /proc/asound/cards
>  0 [Intel          ]: HDA-Intel - HDA Intel
>                       HDA Intel at 0xffa74000 irq 29
> # cat /proc/asound/card0/codec#2

Could you give rather alsa-info.sh output (run with --no-upload option)?

> It's a regression against, I think, 2009-11-13-19-59.

There aren't so many fundamental changes since Nov. 13.
The major ones are for Intel HDMI, but it should be irrelevant in your

The changes in patch_sigmatel.c since then are:

   ALSA: hda - Replace the rest of jack-detections with snd_hda_jack_detect()

    ALSA: hda - Fix detection of dual headphones

    ALSA: hda - Fix mute-LED sync on HP laptops with IDT92HD83xxx codecs

Could you try to revert them?  The patches are found in sound git tree
or linux-next.



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