Re: [BUG] ali5451 not resumed properly under 2.6.7 ( fine under 2.6.6 )

[Takashi Iwai <tiwai@suse.de>]

At Wed, 23 Jun 2004 10:04:17 -0700,
Fedor Karpelevitch wrote:
> 
> Hi,
> 
> I upgraded to 2.6.7 recently and noticed that my ali5451 souncard 
> stopped behaving properly after resuming. 
> 
> Basically after resume it produces no sound even though everything 
> pretends that the card is working properly (mixer "changes" volume 
> etc...). 
> I found that executing something like 'alsactl -F power A5451 D1' 
> makes it produce sound again although the volume is noticably lower 
> than it should be.
> 
> 2.6.6 works just fine.
> 
> I looked at the diff for ali5451.c and noticed that in ali_suspend a 
> call to snd_pcm_suspend_all(chip->pcm) was added, but in ali_resume 
> no call to resume pcm was added. Could that be the cause of the 
> problem?

No, the resume is done either in pcm_oss.c or by calling the resume
ioctl explicitly from ALSA-native apps later on.

> I will try adding that call and see if that fixes the problem.

There is no function such as snd_pcm_resume_pcm().

Maybe you can remove the calls of snd_pcm_suspend_all(),
snd_ac97_suspend() in suspend callback, and snd_ac97_resume() in
resume callback.


--
Takashi Iwai <tiwai@suse.de>		ALSA Developer - www.alsa-project.org