Public bug reported:
On bootup, the bootup ubuntu sound plays. After ubuntu is fully booted,
the headphones or audio from speakers will not work. If I change audio
output to hdmi and connect headphones to that, sound plays as expected.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: alsa-base (not installed)
ProcVersionSignature: Ubuntu 4.4.0-1055.64-aws 4.4.117
Uname: Linux 4.4.0-1055-aws x86_64
ApportVersion: 2.20.1-0ubuntu2.16
Architecture: amd64
Date: Wed May 9 20:29:26 2018
Ec2AMI: ami-da05a4a0
Ec2AMIManifest: (unknown)
Ec2AvailabilityZone: us-east-1a
Ec2InstanceType: c5.4xlarge
Ec2Kernel: unavailable
Ec2Ramdisk: unavailable
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
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug ec2-images xenial
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https://bugs.launchpad.net/bugs/1770255
Title:
Audio will not play from speakers or headphones after boot
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