*** 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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https://bugs.launchpad.net/bugs/1801538
Title:
no sound after upgrading to ubuntu 18.10 from 18.04
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