Public bug reported:

Whenever a sound needs to be played the screen blanks out for a second,
then the screen comes back on, and the sound plays.

Examples of sounds are when I press Tab on the terminal, and there are
no possible completions, or when I press the down button on the
terminal, and there are no further lines below, then it blanks out,
comes back, and then plays the "ding" tone telling me there are no
further completions or lines.

However, after one blank-out, if I keep pressing the down button, the
sounds play normally without blanking out for a short time. After that
period, it repeats again on doing something that would cause the sound
to be played again.

I'm on a relatively new HP Pavilion CS3006TX, running 20.04 Focal Fossa
(Development branch)

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.4.0-18.22-generic 5.4.24
Uname: Linux 5.4.0-18-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
.proc.driver.nvidia.gpus.0000.06.00.0: Error: [Errno 21] Is a directory: 
'/proc/driver/nvidia/gpus/0000:06:00.0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.suspend: suspend hibernate resume
.proc.driver.nvidia.suspend_depth: default modeset uvm
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86_64 Kernel Module  435.21  Sun Aug 25 08:17:57 
CDT 2019
 GCC version:  gcc version 9.3.0 (Ubuntu 9.3.0-8ubuntu1)
ApportVersion: 2.20.11-0ubuntu21
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CompizPlugins: No value set for 
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Sun Mar 29 09:05:04 2020
DistUpgraded: 2020-03-28 14:50:01,253 DEBUG Running PostInstallScript: 
'./xorg_fix_proprietary.py'
DistroCodename: focal
DistroVariant: ubuntu
DkmsStatus:
 nvidia, 435.21, 5.3.0-42-generic, x86_64: installed
 nvidia, 435.21, 5.4.0-18-generic, x86_64: installed
 virtualbox, 6.1.4, 5.3.0-42-generic, x86_64: installed
 virtualbox, 6.1.4, 5.4.0-18-generic, x86_64: installed
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
 Intel Corporation Device [8086:8a56] (rev 07) (prog-if 00 [VGA controller])
   Subsystem: Hewlett-Packard Company Device [103c:86e2]
   Subsystem: Hewlett-Packard Company GP108M [GeForce MX250] [103c:86e2]
InstallationDate: Installed on 2019-11-30 (119 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 003: ID 05c8:03bc Cheng Uei Precision Industry Co., Ltd 
(Foxlink) HP Wide Vision HD Camera
 Bus 001 Device 004: ID 8087:0aaa Intel Corp. 
 Bus 001 Device 002: ID 046d:c52f Logitech, Inc. Unifying Receiver
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: HP HP Pavilion Laptop 15-cs3xxx
ProcEnviron:
 LANGUAGE=en_IN:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_IN
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-18-generic 
root=UUID=5ee3ea75-c293-4350-b4ea-e81ef28c7f78 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to focal on 2020-03-28 (0 days ago)
dmi.bios.date: 08/23/2019
dmi.bios.vendor: Insyde
dmi.bios.version: F.03
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: 86E2
dmi.board.vendor: HP
dmi.board.version: 95.16
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.modalias: 
dmi:bvnInsyde:bvrF.03:bd08/23/2019:svnHP:pnHPPavilionLaptop15-cs3xxx:pvrType1ProductConfigId:rvnHP:rn86E2:rvr95.16:cvnHP:ct10:cvrChassisVersion:
dmi.product.family: 103C_5335KV HP Pavilion
dmi.product.name: HP Pavilion Laptop 15-cs3xxx
dmi.product.sku: 8LX85PA#ACJ
dmi.product.version: Type1ProductConfigId
dmi.sys.vendor: HP
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.100-4
version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.2-1ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.7-2ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20190815-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug focal reproducible ubuntu

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Title:
  Whenever a sound needs to be played the screen blanks out

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