Do your dock station has one headphone and one mic Jack or just one combo headset Jack ? Connect headphones or a headset that has a 3.5-mm (0.14-inch), 4-pole plug to the audio connector to listen to the sound from the computer.
The Docking station as well as the Notebook has just one Stereo/Mic Combo Audio Jack. I've tried various Headset with 4-Pole and 3-pole plugs. They all work fine on the Notebook but not with the Docking station (40A20090EU). However the Laptop speakers mute as soon as I plug the Headset in the Docking Station so it seems that the driver is somehow aware of it!
Remove the following lines options snd cards_limit=1 #options snd-hda-intel model=thinkpad options snd-hda-intel model=thinkpad enable=1 index=0 options snd-hda-intel model=hdmi enable=1 index=-2
I already tried that no success. Without the index parameter alsa switches to the HDMI output by default.
https://git.kernel.org/cgit/linux/kernel/git/tiwai/sound.git/commit/sound/pc...]
lenovo-dock expect dock headphone Jack and dock Mic Jack ?
I guess so since there is only one plug. Again all works well when I use the Notebooks 3.5mm plug.
Post the output of alsa-info.sh when thinkpad is docked and not docked with headphone pluggedd and unplugged
Well here I have another problem. The script doesn't get very far: ALSA Information Script v 0.4.62 --------------------------------
This script visits the following commands/files to collect diagnostic information about your ALSA installation and sound related hardware.
dmesg lspci lsmod aplay amixer alsactl /proc/asound/ /sys/class/sound/ ~/.asoundrc (etc.)
See 'alsa-info.sh --help' for command line options.
cat: /proc/asound/modules: No such file or directory
Strange thing, /proc/asound exists: HDMI PCH card0 card1 cards devices pcm timers version
I've compiled the drivers als modules and they are loaded!
lsmod shows: thinkpad_acpi 52900 1 i915 666771 5 snd_hda_intel 26867 6 snd_hda_codec 116484 2 snd_hda_codec_realtek,snd_hda_intel cfbfillrect 3650 1 i915 cfbimgblt 2039 1 i915 cfbcopyarea 3350 1 i915 snd_pcm 65126 4 snd_hda_codec,snd_hda_intel drm_kms_helper 27044 1 i915 intel_gtt 11928 1 i915 snd_page_alloc 6690 2 snd_pcm,snd_hda_intel
cat pcm: 00-00: ALC292 Analog : ALC292 Analog : playback 1 : capture 1 01-03: ID 2807 Digital : ID 2807 Digital : playback 1
cat cards: 0 [PCH ]: HDA-Intel - HDA Intel PCH HDA Intel PCH at 0xf0634000 irq 44 1 [HDMI ]: HDA-Intel - HDA Intel HDMI HDA Intel HDMI at 0xf0630000 irq 46
Any further help?