I did the way you recommended. I wrote sudo apt update to the terminal.
Then I wrote sudo apt -f full-upgrade. Now all is well. And the red sign
disappeared. Thank you very much. You are a smart person.
Sometime later, there is still a need to resolve the issue with bluetooth.
Turns on and sees devices but can not transmit data and access an access
point from another device. I can not use the device when there is no WI-FI
and I need the internet. The phone could provide mobile data, but it does
not succeed.

2018-08-27, pr, 13:31 Daniel van Vugt <daniel.van.v...@canonical.com>
rašė:

> 1. If you could help us to debug the sound problem some more, please try
> changing "realtime-scheduling" to "yes" and confirm that re-introduces
> the bug.
>
> 2. Your red icon is a different bug, most likely (usually) caused by
> failed or broken updates...
>    (i) Try removing all PPAs from the system using 'ppa-purge'.
>    (ii) Try: sudo apt update ; sudo apt -f full-upgrade
>    (iii) Log a new bug.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1788471
>
> Title:
>   There is no sound when you turn on the tube. Sometimes the sound is. I
>   do not understand why this is so
>
> Status in pulseaudio package in Ubuntu:
>   Incomplete
>
> Bug description:
>   There is no sound when you turn on the tube. Sometimes the sound is. I
>   do not understand why this is so
>
>   ProblemType: Bug
>   DistroRelease: Ubuntu 18.04
>   Package: pulseaudio 1:11.1-1ubuntu7.1
>   Uname: Linux 4.16.0-rc3-stockmind-gpdpocket x86_64
>   ApportVersion: 2.20.9-0ubuntu7.2
>   Architecture: amd64
>   AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/pcmC1D1p',
> '/dev/snd/pcmC1D0c', '/dev/snd/pcmC1D0p', '/dev/snd/controlC1',
> '/dev/snd/by-path', '/dev/snd/pcmC0D2p', '/dev/snd/pcmC0D1p',
> '/dev/snd/pcmC0D0p', '/dev/snd/controlC0', '/dev/snd/seq',
> '/dev/snd/timer', '/dev/sequencer2', '/dev/sequencer'] failed with exit
> code 1:
>   CurrentDesktop: ubuntu:GNOME
>   Date: Wed Aug 22 22:04:28 2018
>   InstallationDate: Installed on 2018-08-13 (8 days ago)
>   InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64
> (20180105.1)
>   PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
> PulseAudio daemon running, or not running as session daemon.
>   SourcePackage: pulseaudio
>   Symptom: audio
>   UpgradeStatus: Upgraded to bionic on 2018-08-13 (8 days ago)
>   dmi.bios.date: 08/07/2017
>   dmi.bios.vendor: American Megatrends Inc.
>   dmi.bios.version: 5.11
>   dmi.board.asset.tag: Default string
>   dmi.board.name: Default string
>   dmi.board.vendor: AMI Corporation
>   dmi.board.version: Default string
>   dmi.chassis.asset.tag: Default string
>   dmi.chassis.type: 3
>   dmi.chassis.vendor: Default string
>   dmi.chassis.version: Default string
>   dmi.modalias:
> dmi:bvnAmericanMegatrendsInc.:bvr5.11:bd08/07/2017:svnDefaultstring:pnDefaultstring:pvrDefaultstring:rvnAMICorporation:rnDefaultstring:rvrDefaultstring:cvnDefaultstring:ct3:cvrDefaultstring:
>   dmi.product.family: Default string
>   dmi.product.name: Default string
>   dmi.product.version: Default string
>   dmi.sys.vendor: Default string
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1788471/+subscriptions
>

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https://bugs.launchpad.net/bugs/1788471

Title:
  There is no sound when you turn on the tube. Sometimes the sound is. I
  do not understand why this is so

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