@David Henningsson
Hi, thanks for your effort,
I've tried that patch and with a little correction it works as expected - no
more click noise.
It's necessary to move the line
.reboot_notify = conexant_reboot_notify,
from
static const struct hda_codec_ops conexant_patch_ops = {
to
static const struct hda_codec_ops cx_auto_patch_ops = {
when rebooting "auto model detection".
One thing about
snd_hda_codec_set_power_to_all(codec, codec->afg, AC_PWRST_D3, false);
I think it's not necessary to turning every single pin to D3, just pin for the
Speaker, like this
snd_hda_codec_write(codec, 0x10, 0, AC_VERB_SET_POWER_STATE, AC_PWRST_D3);
or
snd_hda_codec_write(codec, codec->start_nid, 0, AC_VERB_SET_POWER_STATE,
AC_PWRST_D3);
but it's up to you because it works :)
The rest regressions when using "auto model detection":
1) There is a wrong AC_VERB_SET_CONNECT_SEL setting. Speaker 0x10 and
Headphones 0x11 (and maybe dock station 0x12) are connected to Audio Output
0x19 instead of Audio Mixer 0x17. Look at post #8.
2) I don't know how to explain it but there is a wrong PCM level. Sound output
is muted in the "0% <-> unamplified" part of the volume slider and is working
in the "unamplified <-> 100% ->" part only and it's annoying; according to the
code from patch_conexant.c (old model setting)
switch (codec->subsystem_id >> 16) {
case 0x103c:
case 0x1631:
case 0x1734:
case 0x17aa:
/* HP, Packard Bell, Fujitsu-Siemens & Lenovo laptops have
* really bad sound over 0dB on NID 0x17. Fix max PCM level to
* 0 dB (originally it has 0x2b steps with 0dB offset 0x14)
*/
snd_hda_override_amp_caps(codec, 0x17, HDA_INPUT,
(0x14 << AC_AMPCAP_OFFSET_SHIFT) |
(0x14 << AC_AMPCAP_NUM_STEPS_SHIFT) |
(0x05 << AC_AMPCAP_STEP_SIZE_SHIFT) |
(1 << AC_AMPCAP_MUTE_SHIFT));
break;
}
the driver doesn't allow amplified part because sound is distorted over 0dB of
the PCM level so there is no need amplified part of the volume slider.
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https://bugs.launchpad.net/bugs/886975
Title:
[Thinkpad R61i/T61] Lenovo sound chip Conexant CX20549 Venice doesn't
work correctly.
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