screen glitches

[Ben Games]

The issue is screen glitches

issue is intermittent and temporary
I think it started after a recent update

But it gives the impression of an unstable system

things flickering like a highlighted file in nautilus or in filezilla
shadows under dialog boxes flickering

the icons in the activities bar flickering like its displayed twice but scrolled vertically
there are flickers of the other apps behind each, and some appear highlighted as they do when you put your mouse over them

by scrolling them manually and running mouse over them seemed to get it to stop it
didn't stop immediately but it did

sometimes unresponsive apps like zoom
sometimes zoom showing empty dialog

a symptom that has existed for a while in nautilus when deep in a directory structure the top bar
containing directory names flickers like its scrolling horizontally.

I click on a higher folder to get it to stop

all the above happen regardless of where the mouse is

in gedit with multiple tabs open one tab (the tab) appeared blank no file name, no flickering

Ubuntu 20.04.2 LTS
Laptop model Asus N550JV old
16GB RAM

mouse is new but basic wired J.BURROWS
had to replace small one becuase button got stuck and it kept double clicking when i only single clicked

Additional relevant
I recently updated twice
normally I wait a while perhaps a month before I update
I think it started after a recent update

Additional
I do have many app running at the same time
many opera windows 5+ with many tabs each 30+
which drains my ram 16GB

Has both NVIDIA and built in INTEL graphics
at the time NVIDIA is turned off using INTEL

could be related to RAM or maybe mouse

Additional minor
after latest update my desktop wallpaper which was just ubuntu 20.04 default now appears black
in settings I can choose others and they display, but choose the one it was it stays black
actually I would like an option for black. save power graphics CPU

I really would like a ubuntu without screen glitches

Thank you for your time

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.8.0-50.56~20.04.1-generic 5.8.18
Uname: Linux 5.8.0-50-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.16
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Mon Apr 19 15:58:48 2021
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
GraphicsCard:
 Intel Corporation 4th Gen Core Processor Integrated Graphics Controller [8086:0416] (rev 06) (prog-if 00 [VGA controller])
   Subsystem: ASUSTeK Computer Inc. 4th Gen Core Processor Integrated Graphics Controller [1043:11cd]
   Subsystem: ASUSTeK Computer Inc. GK107M [GeForce GT 750M] [1043:11cd]
InstallationDate: Installed on 2020-09-08 (222 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
MachineType: ASUSTeK COMPUTER INC. N550JV
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.8.0-50-generic root=UUID=18f3ecb2-cebb-4134-aa73-7d85d52089a3 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/14/2013
dmi.bios.release: 4.6
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: N550JV.204
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: N550JV
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrN550JV.204:bd05/14/2013:br4.6:svnASUSTeKCOMPUTERINC.:pnN550JV:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnN550JV:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.family: N
dmi.product.name: N550JV
dmi.product.sku: ASUS-NotebookSKU
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.102-1ubuntu1~20.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 20.2.6-0ubuntu0.20.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx 20.2.6-0ubuntu0.20.04.1
version.xserver-xorg-core: xserver-xorg-core 2:1.20.9-2ubuntu1.2~20.04.2
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+git20200226-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1

[Chris Guiver (guiverc)]

Thank you for taking the time to report this bug and helping to make Ubuntu better.

Bug reporting is mostly about finding & fixing problems thus preventing future users from hitting the same bug.

I suspect a Support site would be more appropriate, eg. https://answers.launchpad.net/ubuntu. You can also find help with your problem in the support forum of your local Ubuntu community http://loco.ubuntu.com/ or asking at https://askubuntu.com or https://ubuntuforums.org, or for more support options please look at https://discourse.ubuntu.com/t/community-support/709

[Daniel van Vugt (vanvugt)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1924778, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.