Microphones don't work after rebooting

[Victor Porton]

Connect both rear microphone and front microphone to the PC.

In Gnome Sound settings select Rear Microphone input.

Reboot the computer.

Now both microphones don't work.

Workaround: Modify (and then modify back) the input device in Gnome Sound settings.

Gigabyte H67A-UD3H motherboard.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: gnome-shell 3.28.2-0ubuntu0.18.04.1
ProcVersionSignature: Ubuntu 4.15.0-30.32-generic 4.15.18
Uname: Linux 4.15.0-30-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Fri Aug 10 21:34:19 2018
DisplayManager: gdm3
InstallationDate: Installed on 2018-06-23 (47 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_IL
 SHELL=/bin/bash
SourcePackage: gnome-shell
UpgradeStatus: No upgrade log present (probably fresh install)

[Sebastien Bacher (seb128)]

The settings is not a service and not involved in restoring configs after boot, it's just an interface to change the options. Removing g-c-c since the problem is not here