*** This bug is a duplicate of bug 1793640 ***
https://bugs.launchpad.net/bugs/1793640
Same thing for me with a Lenovo L520 and Intel chipset. Some relevant
information just in case
sudo lshw -c sound
*-multimedia
description: Audio device
product: 6 Series/C200 Series Chipset Family High Definition Audio
Controller
vendor: Intel Corporation
physical id: 1b
bus info: pci@0000:00:1b.0
version: 04
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: driver=snd_hda_intel latency=0
resources: irq:28 memory:f0900000-f0903fff
*-usb:1
description: Video
product: Integrated Camera
vendor: Chicony Electronics Co., Ltd.
physical id: 4
bus info: usb@2:1.4
version: 2.22
capabilities: usb-2.00
configuration: driver=uvcvideo maxpower=200mA speed=480Mbit/s
-------------------------------------------------------------------
lspci -nnk | grep -A2 Audio
00:1b.0 Audio device [0403]: Intel Corporation 6 Series/C200 Series Chipset
Family High Definition Audio Controller [8086:1c20] (rev 04)
Subsystem: Lenovo 6 Series/C200 Series Chipset Family High Definition
Audio Controller [17aa:21dd]
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
-------------------------------------------------------------------
lsmod | grep snd_hda_intel
snd_hda_intel 40960 3
snd_hda_codec 126976 4
snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
snd_hda_core 81920 5
snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek
snd_pcm 98304 5
snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_core
snd 81920 17
snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek,snd_timer,thinkpad_acpi,snd_pcm,snd_rawmidi
d
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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to pulseaudio in Ubuntu.
https://bugs.launchpad.net/bugs/1801538
Title:
no sound after upgrading to ubuntu 18.10 from 18.04
Status in pulseaudio package in Ubuntu:
Confirmed
Bug description:
Ubuntu 18.10 does not recognize sound devices. After upgrading there
is only a dummy device known. All others are gone. In tune there is no
sound output to nowhere.
It does not mater it headphones are plugged or not while booting. It
does not matter if any usb-sound device is plugged or not. The only
device show for output in mixer is "Dummy device".
ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: pulseaudio 1:12.2-0ubuntu4
ProcVersionSignature: Ubuntu 4.18.0-11.12-generic 4.18.12
Uname: Linux 4.18.0-11-generic x86_64
ApportVersion: 2.20.10-0ubuntu13.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: timidity 8931 F.... timidity
/dev/snd/pcmC0D0p: timidity 8931 F...m timidity
/dev/snd/seq: timidity 8931 F.... timidity
/dev/snd/timer: timidity 8931 f.... timidity
Date: Sat Nov 3 17:25:55 2018
InstallationDate: Installed on 2011-10-19 (2571 days ago)
InstallationMedia: Xubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
SourcePackage: pulseaudio
UpgradeStatus: Upgraded to cosmic on 2018-11-03 (0 days ago)
dmi.bios.date: 10/21/2013
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: V2.15
dmi.board.asset.tag: No Asset Tag
dmi.board.name: TravelMate P643-M
dmi.board.vendor: Acer
dmi.board.version: V2.15
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: Acer
dmi.chassis.version: V2.15
dmi.modalias:
dmi:bvnPhoenixTechnologiesLtd.:bvrV2.15:bd10/21/2013:svnAcer:pnTravelMateP643-M:pvrV2.15:rvnAcer:rnTravelMateP643-M:rvrV2.15:cvnAcer:ct9:cvrV2.15:
dmi.product.family: TravelMate P643-M
dmi.product.name: TravelMate P643-M
dmi.product.sku: TravelMate P643-M_0681_2.15
dmi.product.version: V2.15
dmi.sys.vendor: Acer
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