Re: [bug] Volume at maximum when track with different frequency is played with my RME sound card

[Maeda <maeda1@free.fr>]

OK that's what I thought.
I'm using Archlinux, I'll see on the archwiki's website, and report 
results here.

Stay tuned :)

Le 21/11/2015 20:45, Takashi Iwai a écrit :
> On Sat, 21 Nov 2015 18:42:06 +0100,
> Maeda wrote:
>> Hi !
>>
>> Thanks for answering me.
>> Yes, turning the output volume up or down as soon as it's playing at
>> full output : it plays at the % it should play.
>>
>> I'm OK to try the patch, but I don't find the /rme96.c/ file. Where is
>> it located ? I think a recompilation's needed then ? Never done that.
> Well, you need to learn how to compile the kernel.  It's possible to
> compile only a module from the current running tree, too.
>
> Which distro are you using?  You can ask distro guys for assistance.
>
>
> Takashi
>
>> Thanks for help.
>>
>> Kind regards.
>>
>> Le 20/11/2015 17:34, Takashi Iwai a écrit :
>>> On Tue, 10 Nov 2015 13:41:44 +0100,
>>> Maeda wrote:
>>>> Hi !
>>>>
>>>> Someone's here ?
>>>>
>>>> Thanks.
>>>>
>>>> Le 23/10/2015 18:30, Maeda a écrit :
>>>>> Hi all !
>>>>>
>>>>> I don't know if the bug is known from your team, but some people
>>>>> advice me to send an email to the Alsa devel list if nobody answer in
>>>>> the kernel's bugtracking.
>>>>>
>>>>> Here is the bug I have :
>>>>> https://bugzilla.kernel.org/show_bug.cgi?id=105771
>>>>>
>>>>> What do you think about it ?
>>> Does the volume go down when you adjust DAC volume by mixer
>>> application when this happens?
>>>
>>> Through a quick glance at the driver code, the only smelling part is
>>> that it's calling snd_rme96_reset_dac() from
>>> snd_rme96_playback_setrate().  If the DAC volume adjustment really
>>> works, the patch below might work.  Please give it a try.
>>>
>>> The patch has a code to give some delay that is commented out for
>>> now.  The delay is found in the resume path, but I'm not sure whether
>>> it's mandatory.  So let's try at first without the delay.  If it's
>>> unstable, you can uncomment the line and retry.
>>>
>>>
>>> thanks,
>>>
>>> Takashi
>>>
>>> ---
>>> diff --git a/sound/pci/rme96.c b/sound/pci/rme96.c
>>> index 714df906249e..a9d8a66fc3da 100644
>>> --- a/sound/pci/rme96.c
>>> +++ b/sound/pci/rme96.c
>>> @@ -741,6 +741,9 @@ snd_rme96_playback_setrate(struct rme96 *rme96,
>>>    	{
>>>    		/* change to/from double-speed: reset the DAC (if available) */
>>>    		snd_rme96_reset_dac(rme96);
>>> +		/* usleep_range(3000, 10000); */
>>> +		if (RME96_HAS_ANALOG_OUT(rme96))
>>> +			snd_rme96_apply_dac_volume(rme96);
>>>    	} else {
>>>    		writel(rme96->wcreg, rme96->iobase + RME96_IO_CONTROL_REGISTER);
>>>    	}
>>>
>>>
>>>
>>>

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