[alsa-devel] No sound after suspend-to-ram

[Takashi Iwai]

On Mon, 26 Oct 2015 08:00:20 +0100,
Kailang wrote:
> 
> Hi Takashi,
> 
>         [ALC275_FIXUP_DELL_XPS] = {
>                 .type = HDA_FIXUP_VERBS,
>                 .v.verbs = (const struct hda_verb[]) {
>                         /* Enables internal speaker */
>                         {0x20, AC_VERB_SET_COEF_INDEX, 0x1f},
>                         {0x20, AC_VERB_SET_PROC_COEF, 0x00c0},
>                         {0x20, AC_VERB_SET_COEF_INDEX, 0x30},
>                         {0x20, AC_VERB_SET_PROC_COEF, 0x00b1},
>                         {}
>                 }
>         },
> 
> Could I put code as upper? Was it enter to initial state?
> I think it should be execute atfter resume back. Right?

Yes, these are performed at resume.  But the COEF stuff needs a bit
care since it's written in multiple places.  If you can cook up the
patch, I can check it hda-emu, too.


thanks,

Takashi