Hi All, I'm experiencing issues with a Lenovo P50 regarding headphones. It has some similarities with the issue fixed in 5.8.13 with commit ad0643252831ede7d6ab7b70a4f03768e032e6b4 Author: Hui Wang <hui.w...@canonical.com> Date: Mon Sep 14 14:51:18 2020 +0800
ALSA: hda/realtek - Couldn't detect Mic if booting with headset plugged I've been seeing this behavior since some time and now I'm running 5.8.14 Description: sometimes when I start the laptop with headphones plugged in, no sound comes out of the headphones. The only thing I can hear is the "usual" click when the kernel boots. Sound config in the gui reports headphones plugged, nothing seems really wrong but no sound. Removing headphones does not help: sound can be heard from laptop loudspeakers but to get back the sound on headphones I have to unplug the jack, reboot the laptop and once booted, inserting the headphones makes everything work as expected. Gui tools report everything as expected: headphones inserted, volume is ok and so on. Below you can find the dmesg boot messages related to sound devices. If you need more details please let me know. If I picked the wrong address to report the issue please let me know, I'll try to contact the relevant sources. Please note that I'm not subscribed to this list even though I monitor it, so being in CC: will be really appreciated. Many thanks for any answer. [Fri Oct 9 08:20:05 2020] snd_hda_codec_realtek hdaudioC0D0: autoconfig for ALC298: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:speaker [Fri Oct 9 08:20:05 2020] snd_hda_codec_realtek hdaudioC0D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0) [Fri Oct 9 08:20:05 2020] snd_hda_codec_realtek hdaudioC0D0: hp_outs=2 (0x17/0x21/0x0/0x0/0x0) [Fri Oct 9 08:20:05 2020] snd_hda_codec_realtek hdaudioC0D0: mono: mono_out=0x0 [Fri Oct 9 08:20:05 2020] snd_hda_codec_realtek hdaudioC0D0: inputs: [Fri Oct 9 08:20:05 2020] snd_hda_codec_realtek hdaudioC0D0: Mic=0x18 [Fri Oct 9 08:20:05 2020] snd_hda_codec_realtek hdaudioC0D0: Dock Mic=0x19 [Fri Oct 9 08:20:05 2020] snd_hda_codec_realtek hdaudioC0D0: Internal Mic=0x12 [Fri Oct 9 08:20:05 2020] videodev: Linux video capture interface: v2.00 [Fri Oct 9 08:20:05 2020] input: HDA NVidia HDMI/DP,pcm=3 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input15 [Fri Oct 9 08:20:05 2020] input: HDA NVidia HDMI/DP,pcm=7 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input16 [Fri Oct 9 08:20:05 2020] input: HDA NVidia HDMI/DP,pcm=8 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input17 [Fri Oct 9 08:20:05 2020] input: HDA NVidia HDMI/DP,pcm=9 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input18 [Fri Oct 9 08:20:05 2020] input: HDA NVidia HDMI/DP,pcm=10 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input19 [Fri Oct 9 08:20:05 2020] input: HDA NVidia HDMI/DP,pcm=11 as /devices/pci0000:00/0000:00:01.0/0000:01:00.1/sound/card1/input20 [Fri Oct 9 08:20:05 2020] input: HDA Intel PCH Mic as /devices/pci0000:00/0000:00:1f.3/sound/card0/input22 [Fri Oct 9 08:20:05 2020] input: HDA Intel PCH Dock Mic as /devices/pci0000:00/0000:00:1f.3/sound/card0/input23 [Fri Oct 9 08:20:05 2020] input: HDA Intel PCH Dock Headphone as /devices/pci0000:00/0000:00:1f.3/sound/card0/input24 [Fri Oct 9 08:20:05 2020] input: HDA Intel PCH Headphone as /devices/pci0000:00/0000:00:1f.3/sound/card0/input25 -- Fabio