Created attachment 115821 [details] Codec dump for AD1981HD On my Thinkpad T60, I lost the functionality of mixing analog sources (like microphone) directly into the analog output (like speaker/headphone). In earlier kernel versions, it was possible to control the analog mixing using a control in the alsamixer "playback" view named "microphone". I did not bisect the bug, but there are reasons to believe that this might be caused by removal of the static AD1981HD configuration in commit bd450dcc357646cc277c560ab24b35f940efa585 which contained appropriate mixer settings and routing the output through the "mixing" node. Attaching codec dump from the current kernel.
Created attachment 115831 [details] Codec dump for AD1981HD, this time with better mime type
For the hardware information, please give alsa-info.sh output at best. Run it with --no-upload option, and attach the output. In anyway, the cause of this behavior change is due to the movement to the generic parse, as you pointed. The generic parser tries to avoid the stereo mixing input for simplifying the operation as much as possible (e.g. enabling the automatic mic switching). You can still enable the stereo mixing by specifying via a hint string. For example, try to create a file /lib/firmware/alsa/tp-stereo containing the following lines: [codec] 0x11d41981 0x17aa2025 0 [hint] add_stereo_mix_input = 1 Then pass "patch" option to snd-hda-intel module (e.g. creating a file /etc/modprobe.d/50-tp-stereo.conf) options snd-hda-intel patch=alsa/tp-stereo Some brief information is found in Documentation/sound/alsa/HD-Audio.txt, but I should write more detailed instructions there...
Thank you for your quick response, but this is not what I was asking for. Possibly I was not clear enough about what I want: I want to be able to hear the microphone input signal without CPU processing and any associated delay in on the speaker/headphone output, by routing the output channel through the analog mixer node 0x0E instead of connecting the DAC 0x03 directly to the output pin 0x05, so I can have a "Mic Playback Volume" and "Mic Playback Switch" controlling node 0x12 routing the output of the microphone input pin 0x08 to the analog output. I did not find a way to provide a hint for that, and after skimming over the entire hda_generic.c source code file, I see no obvious way to modify the output routing algorithm to not use the direct path. Also I see no obvious way to get playback controls for input pins. Is there some more elaborate way of forcing codec/mixer configuration to get the requested functionality? In my case, the use case is rehearsing vocal music using headphones. For that, I need to hear my own voice on the headphones mixed with the background played by some audio playing application.
seem missing headphone node https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/?id=bd450dcc357646cc277c560ab24b35f940efa585 -static const struct snd_kcontrol_new ad1981_mixers[] = { - HDA_CODEC_VOLUME("Front Playback Volume", 0x05, 0x0, HDA_OUTPUT), - HDA_CODEC_MUTE("Front Playback Switch", 0x05, 0x0, HDA_OUTPUT), - HDA_CODEC_VOLUME("Headphone Playback Volume", 0x06, 0x0, HDA_OUTPUT), - HDA_CODEC_MUTE("Headphone Playback Switch", 0x06, 0x0, HDA_OUTPUT), port A should be headphone the driver should move spec->gen.indep_hp = 1; from ad198x_parse_auto_config() to patch_ad1988 or disable indep hp for any hda_codecs with 1 DAC
seem alway select out path without aamix when there is a direct connection from DAC to output pin path = snd_hda_add_new_path(codec, dac, pin, -spec->mixer_nid); if (!path && !i && spec->mixer_nid) { /* try with aamix */ path = snd_hda_add_new_path(codec, dac, pin, 0); }
Thanks, now it's clear what's really missing. Actually this is a case the current driver looked over. The fix patch below should add the proper loopback controls back. You'll have "Loopback Mixing" mixer control to turn on/off the loopback, and each loopback volume/mute like "Mic" and "CD".
Created attachment 116531 [details] Fix aamix controls for AD codecs
but node 0x05 still connect to node 0x03 instead of audio mixer Node 0x05 [Pin Complex] wcaps 0x400187: Stereo Amp-In Amp-Out Control: name="Master Playback Volume", index=0, device=0 ControlAmp: chs=3, dir=Out, idx=0, ofs=0 Control: name="Master Playback Switch", index=0, device=0 ControlAmp: chs=3, dir=Out, idx=0, ofs=0 Control: name="Speaker Phantom Jack", index=0, device=0 Amp-In caps: ofs=0x00, nsteps=0x03, stepsize=0x27, mute=0 Amp-In vals: [0x00 0x00] Amp-Out caps: ofs=0x3d, nsteps=0x3f, stepsize=0x05, mute=1 Amp-Out vals: [0xbf 0xbf] Pincap 0x0001173f: IN OUT HP EAPD Detect Trigger ImpSense Vref caps: HIZ 50 GRD 80 EAPD 0x2: EAPD Pin Default 0xc3014110: [Both] Line Out at Ext Left Conn = 1/8, Color = Green DefAssociation = 0x1, Sequence = 0x0 Misc = NO_PRESENCE Pin-ctls: 0x40: OUT VREF_HIZ Unsolicited: tag=00, enabled=0 Connection: 2 0x03* 0x0e strange the driver only evaluate the mixer path when indep_hp=1 and use spec->mixer_nid instead of -spec->mixer_nid ==> lo_type=1, wired=1, mio=1, badness=0x10 multi_outs = 5/0/0/0 : 3/0/0/0 (type SP) out path: depth=2 :03:05 mix path: depth=4 :03:11:0e:05 ==> lo_type=1, wired=1, mio=0, badness=0x10 multi_outs = 5/0/0/0 : 3/0/0/0 (type SP) out path: depth=2 :03:05 mix path: depth=4 :03:11:0e:05 ==> lo_type=1, wired=0, mio=1, badness=0x10 multi_outs = 5/0/0/0 : 3/0/0/0 (type SP) out path: depth=4 :03:11:0e:05 ==> lo_type=1, wired=0, mio=0, badness=0x10 multi_outs = 5/0/0/0 : 3/0/0/0 (type SP) out path: depth=4 :03:11:0e:05 ==> restoring best_cfg ==> Best config: lo_type=1, wired=1, mio=1 multi_outs = 5/0/0/0 : 3/0/0/0 (type SP) out path: depth=2 :03:05 mix path: depth=4 :03:11:0e:05
It's connected dynamically when "Loopback Mixing" mixer element is enabled. You see two paths are shown as the result in the log you pasted.
previous version allow user to mute signal from DAC and just use those Input Jacks for the Output - HDA_CODEC_VOLUME("PCM Playback Volume", 0x11, 0x0, HDA_OUTPUT), - HDA_CODEC_MUTE("PCM Playback Switch", 0x11, 0x0, HDA_OUTPUT), Node 0x11 [Audio Selector] wcaps 0x30010d: Stereo Amp-Out Amp-Out caps: ofs=0x17, nsteps=0x1f, stepsize=0x05, mute=1 Amp-Out vals: [0x17 0x17] Connection: 1 0x03
The patch has been merged to the upstream.
seem missing mic at ext rear for 5.1 support you have to verify all pin complexes with pincap DETECT by using hda-verb GET_PIN_SENSE the driver require three pins at same location /sys/class/sound/hwC0D0/init_pin_configs: 0x1a 0x02214021 0x1b 0x01014011 <---- Line Out at Ext Rear 0x1c 0x01013012 0x1d 0x01019015 0x1e 0x501700f0 0x1f 0x02a190f0 <---- Mic at Ext Front 0x20 0x018130f0 <---- Line in at Ext Rear 0x21 0x509700f0 0x22 0x993310f0 0x23 0x50b700f0 0x24 0x90f700f0 0x25 0x014510f0