Messages in this thread | | | Date | Mon, 07 Jun 2004 19:01:27 +0200 | From | Takashi Iwai <> | Subject | Re: [PATCH] Fix apm suspend with cs4231 based sound cards |
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At Tue, 8 Jun 2004 03:39:52 +1200 (NZST), Keith Duthie wrote: > > The following patch (effectively a reversion of a change between alsa > 0.9.4 and 0.9.5) fixes a problem whereby an APM suspend causes the > program which is using the PCM device to enter the uninterruptible sleep > state on resume and thus causes the sound device to be unusable. > > --- linux-2.6.5/sound/isa/cs423x/cs4231_lib.c~ Tue Jun 8 03:24:49 2004 > +++ linux-2.6.5/sound/isa/cs423x/cs4231_lib.c Tue Jun 8 03:24:52 2004 > @@ -1402,7 +1402,7 @@ > switch (rqst) { > case PM_SUSPEND: > if (chip->suspend) { > - snd_pcm_suspend_all(chip->pcm); > + // snd_pcm_suspend_all(chip->pcm); > (*chip->suspend)(chip); > } > break;
Could you check whether the recent kernel works without this patch? There was a mutex deadlock in the suspend code, and I guess it hit you...
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