On Sat, 04 Aug 2018 17:44:59 +0200,
David Ulricht wrote:
>
> I used the following script running as root to verify the 8 GPIOs while
> playing long youtube video,
> I have running pulseaudio meanwhile and not restarting it, i think its okay
> like that people on the ubuntu forums say that after using
> hda-verb and setting a gpio active immediately sound appears, so i guess
> there is no need to restart pulseaudio.
> I have done the same test with headphones in.
> No sound in both scenarios, no input no output detected (i'm watching
> pavucontrol for input detection).
This codec is fairly unique and doesn't provide the standard jack
detection on each pin. Maybe it's via either GPIO or any other
method. You can try to read GPIO pins (set as input) to see whether
any of them corresponds to the jack detection, for example.
Takashi
>
> #!/usr/bin/env python3
> import os,time
> for x in range(0,256):
> mhex=("0x%0.2X" % x)
> os.system("hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_MASK "+mhex)
> os.system("hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DIRECTION "+mhex)
> os.system("hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DATA "+mhex)
> time.sleep(3)
>
> Meanwhile script is running I'm watching /proc/asound/card0/codec#0 and
> IO[0-7] changes its configuration,
> in comparison Joel Krahemann in his scripts is changing the hex right after
> /dev/snd/hwC0D0 (0x01) e.g. i dont think he is modifiying the GPIOs
> correctly.
>
> I found the following post:
> https://forum.manjaro.org/t/sound-not-working-on-a-2017-imac-27-5k-retina/43638
> According to https://bugzilla.kernel.org/show_bug.cgi?id=195671 iMac27 has
> a similar soundcard.
> How can i setup with command line or any other utility:
> """select “off” in the top menu that propose to setup the Digital
> Surround"""
> this is some setting in xfce4-mixer package which is not available for
> ubuntu since 2 LTS versions behind. I tried current Manjaro and couldn't
> find this setting in audio mixer of xfce4 either.
>
> On Sat, Aug 4, 2018 at 9:48 AM, Takashi Iwai <tiwai@xxxxxxx> wrote:
>
> > On Sat, 04 Aug 2018 04:07:43 +0200,
> > David Ulricht wrote:
> > >
> > > Hello,
> > >
> > > Macbook pro models containing CS8409 for sure are:
> > > MBP131 MBP141.I own MBP 14,1 e.g. 2017 model.
> > >
> > > I'm attaching working sound configuration from Windows 10 registry (note
> > > that the cs420x might need to be ignored or might be important i don't
> > > really know). I believe what is really used is in the PinConfigOverride
> > > section.
> >
> > Comparing between BIOS default (init_pin_cfg in alsa-info.sh output)
> > and your override (user_pin_cfg), there aren't so many changes.
> > All changes are pretty minor, and I guess it won't influence on the
> > driver behavior.
> >
> > > Interesting thing to note is that sound in MacOS is much louder than
> > > Bootcamp Windows, would be nice to hear how loud is on linux.
> >
> > This is possibly with some vendor-specific GPIO or COEF verbs.
> > Or it's some direct I2C control. The INI file mentions it.
> > And that's above HD-audio driver's responsibility.
> >
> > > I did convert PinConfigOverride HEX strings to [pincfg] format in the
> > > attached hda-jack-retask.fw thanks to Takashi's guidance.
> > >
> > > I'm attaching also alsamixer ASCII. Only PCM, no Master ?
> >
> > It's because the codec chip has no output amplifier at all.
> > So there can be neither output volume nor mute control on this chip.
> >
> > > What I have tried is execute:
> > > hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_MASK 0x@@
> > > hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DIRECTION 0x@@
> > > hda-verb /dev/snd/hwC0D0 0x01 SET_GPIO_DATA 0x@@
> > > putting @@ from 0x00 to 0x50
> >
> > There are eight GPIOs, so you'd need to test each bit, i.e. 0x01,
> > 0x02, 0x04, 0x08, ... 0x80.
> >
> > And how is the current situation? You can't play *and* record
> > anything from any inputs / outputs?
> >
> >
> > Takashi
> >
> [2 <text/html; UTF-8 (quoted-printable)>]
>
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