"Dummy Output" -- built-in audio not detected

[Alex Dehnert]

I no longer seem to be getting audio on my laptop, and only "Dummy Output" shows up in the sound settings dialog. This sounds similar to LP #1781294 (including the same PCI device), though that seems to have been marked expired.

alex@tapada:~$ lspci -v | grep -A7 -i "audio"
00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21) (prog-if 80)
 Subsystem: Lenovo Sunrise Point-LP HD Audio
 Flags: bus master, fast devsel, latency 64, IRQ 159
 Memory at 2ffb028000 (64-bit, non-prefetchable) [size=16K]
 Memory at 2ffb000000 (64-bit, non-prefetchable) [size=64K]
 Capabilities: <access denied>
 Kernel driver in use: snd_hda_intel
 Kernel modules: snd_hda_intel, snd_soc_skl

alex@tapada:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.3 LTS
Release: 18.04
Codename: bionic

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 5.0.0-37.40~18.04.1-generic 5.0.21
Uname: Linux 5.0.0-37-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.9
Architecture: amd64
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
CurrentDesktop: ubuntu:GNOME
Date: Fri Dec 13 23:38:35 2019
InstallationDate: Installed on 2019-08-31 (104 days ago)
InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
PackageArchitecture: all
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Title: PCI/internal sound card not detected
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/16/2019
dmi.bios.vendor: LENOVO
dmi.bios.version: N23ET68W (1.43 )
dmi.board.asset.tag: Not Available
dmi.board.name: 20KHCTO1WW
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40697 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.modalias: dmi:bvnLENOVO:bvrN23ET68W(1.43):bd10/16/2019:svnLENOVO:pn20KHCTO1WW:pvrThinkPadX1Carbon6th:rvnLENOVO:rn20KHCTO1WW:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:
dmi.product.family: ThinkPad X1 Carbon 6th
dmi.product.name: 20KHCTO1WW
dmi.product.sku: LENOVO_MT_20KH_BU_Think_FM_ThinkPad X1 Carbon 6th
dmi.product.version: ThinkPad X1 Carbon 6th
dmi.sys.vendor: LENOVO
mtime.conffile..etc.modprobe.d.alsa-base.conf: 2019-12-13T22:15:32.867642

[Hui Wang (hui.wang)]

[ 485.617034] snd_hda_intel 0000:00:1f.3: CORB reset timeout#1, CORBRP = 0
[ 485.618569] snd_hda_intel 0000:00:1f.3: no codecs found!

Maybe you don't install the codec driver's module (ls /lib/modules/'uname -r'/kernel/sound/pci/hda -la) or your machine has hardware problem on codec?

[Alex Dehnert (adehnert)]

I do seem to have some things in that directory:
alex@tapada:~$ ls -la /lib/modules/`uname -r`/kernel/sound/pci/hda/
total 1036
drwxr-xr-x 2 root root 4096 Dec 4 06:10 .
drwxr-xr-x 26 root root 4096 Dec 4 06:10 ..
-rw-r--r-- 1 root root 24081 Nov 14 06:10 snd-hda-codec-analog.ko
-rw-r--r-- 1 root root 7297 Nov 14 06:10 snd-hda-codec-ca0110.ko
-rw-r--r-- 1 root root 162449 Nov 14 06:10 snd-hda-codec-ca0132.ko
-rw-r--r-- 1 root root 22593 Nov 14 06:10 snd-hda-codec-cirrus.ko
-rw-r--r-- 1 root root 8561 Nov 14 06:10 snd-hda-codec-cmedia.ko
-rw-r--r-- 1 root root 31113 Nov 14 06:10 snd-hda-codec-conexant.ko
-rw-r--r-- 1 root root 105369 Nov 14 06:10 snd-hda-codec-generic.ko
-rw-r--r-- 1 root root 89473 Nov 14 06:10 snd-hda-codec-hdmi.ko
-rw-r--r-- 1 root root 89057 Nov 14 06:10 snd-hda-codec-idt.ko
-rw-r--r-- 1 root root 202025 Nov 14 06:10 snd-hda-codec.ko
-rw-r--r-- 1 root root 165681 Nov 14 06:10 snd-hda-codec-realtek.ko
-rw-r--r-- 1 root root 13001 Nov 14 06:10 snd-hda-codec-si3054.ko
-rw-r--r-- 1 root root 30721 Nov 14 06:10 snd-hda-codec-via.ko
-rw-r--r-- 1 root root 76505 Nov 14 06:10 snd-hda-intel.ko

Anything in particular I should be looking for?

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[P. Thibault (pthibault)]

I have apparently the same issue on my Lenovo X1 4th gen since recent upgrade:

lspci -v | grep -A7 -i "audio"
00:1f.3 Audio device: Intel Corporation Cannon Point-LP High Definition Audio Controller (rev 11) (prog-if 80)
        Subsystem: Lenovo Cannon Point-LP High Definition Audio Controller
        Flags: bus master, fast devsel, latency 64, IRQ 16
        Memory at ea33c000 (64-bit, non-prefetchable) [size=16K]
        Memory at ea000000 (64-bit, non-prefetchable) [size=1M]
        Capabilities: <access denied>
        Kernel driver in use: snd_soc_skl
        Kernel modules: snd_hda_intel, snd_soc_skl, sof_pci_dev

lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 19.10
Release: 19.10
Codename: eoan

[dogmatic69 (dogmatic69)]

Sound has been working for me on 19.10 but stopped working a few weeks back after an update.

[Hui Wang (hui.wang)]

@dogmatic69,

Please refer to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1869799