[alsa-devel] No sound with Realtek ALC298 on a Samsung Galaxy book

[Takashi Iwai]

On Mon, 17 Feb 2020 20:01:05 +0100,
Aurélien Croc wrote:
> 
> > Sometimes you have some data in *.INF file or such.  At least, if the
> > standard Windows driver (not the h/w vendor's one) works, the extra
> > configuration is usually put there.
> 
> The Windows driver is the one provided by Realtek. The manufacturer ID is 
> "INTELAUDIO\FUNC_01&VEN_10EC&DEV_0298&SUBSYS_144DC14F".
> I looked into the INF file which corresponds to this driver but I'm not sure 
> to understand it. There is a specific section attached to this device which 
> looks like:
> [CusEffectSettingsMaxim.AddReg]
> HKR,SSTPPCfg\{C75061F3-F2B2-4DCC-8F9F-82ABB4131E66}\SPK\EFX,16777217, 1, 
> 1,0,0,1,1,0,0,0
> HKR,SSTPPCfg\{C75061F3-F2B2-4DCC-8F9F-82ABB4131E66}\SPK\EFX,16777218, 1, 
> 2,0,0,1,0,0,80,2
> ....
> 
> I don't know if the solution is in these lines or not..
> 
> 
> > Also, when you test the sound, don't use PulseAudio but test directly
> > with ALSA native apps (e.g. aplay with -Dhw:0 or -Dplughw:0, etc).
> > You can use speaker-test program, too.
> 
> I tried again all the channels with headphone only by using only ALSA and not 
> pulseaudio. There is no sound at all.
> Note that the internal microphone and the microphone of my headphone when it's 
> plugged in works very well..

Aha, so the input works but only the output doesn't?
Then it's not about the basic stuff like pin configuration but rather
the missing COEF setup or such that is specific to Realtek codec
(and/or the Samsung platform).

Kailang, do you have any clue?


thanks,

Takashi


> 
> > And always try a headphone output at first.  The headset mic might not
> > work, but the headphone output is usually the easiest one to get
> > working.
> 
> 
> Thank you for your help. I hope we'll find the problem..
> 
> 
>