*** This bug is a duplicate of bug 1853094 ***
    https://bugs.launchpad.net/bugs/1853094

I have de same problem, I change to star ubuntu wayland, but in
different moments, ubuntu again present the same problem, this occurs
when update the ubuntu because never see this problem the last year in
my laptop. Where is the Answer to resolve this problem, I have intel
graphic..

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https://bugs.launchpad.net/bugs/1883534

Title:
  Screen flickering

Status in xorg package in Ubuntu:
  Confirmed

Bug description:
  To whom it may concern,

  As stated I have screen flickerings (see lightning like flickering on photo 
attached for portrait screen, for horizontal screen I also have screen 
flickering on the upper part but hard to catch in a photo) on freshly installed 
Ubuntu 20.04 LTS.
  I have tried this:

  https://askubuntu.com/questions/1231441/ubuntu-screen-flickering

  and this:

  https://learnubuntumate.weebly.com/screen-tearing-on-intel-
  graphics.html

  without success. I have also seen some other people mentioning screen
  flickering on ubuntu 20.04 here:

  
https://www.reddit.com/r/Ubuntu/comments/fvk536/anyone_else_noticing_window_flickering_on_ubuntu/

  without solution.

  I also know that it is very unlikely hardware problem because my screens were 
displaying well on archlinux. I think my graphic card info are already included 
in the report but just in case: Intel Corporation UHD Graphics 630. Might be 
intel driver problems ?
  Could you help me on this please ?

  Best regards,
  Jeremy

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: xorg 1:7.7+19ubuntu14
  ProcVersionSignature: Ubuntu 5.4.0-37.41-generic 5.4.41
  Uname: Linux 5.4.0-37-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.2
  Architecture: amd64
  BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
  CasperMD5CheckResult: skip
  CompositorRunning: None
  CurrentDesktop: ubuntu:GNOME
  Date: Mon Jun 15 15:05:27 2020
  DistUpgraded: Fresh install
  DistroCodename: focal
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes, if not too technical
  GraphicsCard:
   Intel Corporation UHD Graphics 630 (Desktop) [8086:3e92] (prog-if 00 [VGA 
controller])
     Subsystem: ASUSTeK Computer Inc. UHD Graphics 630 (Desktop) [1043:8694]
  InstallationDate: Installed on 2020-06-12 (2 days ago)
  InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 002: ID 046a:0023 Cherry GmbH Keyboard
   Bus 001 Device 003: ID 046d:c077 Logitech, Inc. M105 Optical Mouse
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  Lsusb-t:
   /:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/10p, 5000M
   /:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/16p, 480M
       |__ Port 9: Dev 2, If 0, Class=Human Interface Device, Driver=usbhid, 
1.5M
       |__ Port 9: Dev 2, If 1, Class=Human Interface Device, Driver=usbhid, 
1.5M
       |__ Port 10: Dev 3, If 0, Class=Human Interface Device, Driver=usbhid, 
1.5M
  MachineType: System manufacturer System Product Name
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-37-generic 
root=UUID=81cee77a-b529-4dac-9834-dc6d5ab2dc16 ro quiet splash vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 04/11/2018
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 0615
  dmi.board.asset.tag: Default string
  dmi.board.name: PRIME Z370-P
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: Rev X.0x
  dmi.chassis.asset.tag: Default string
  dmi.chassis.type: 3
  dmi.chassis.vendor: Default string
  dmi.chassis.version: Default string
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr0615:bd04/11/2018:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnPRIMEZ370-P:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring:
  dmi.product.family: To be filled by O.E.M.
  dmi.product.name: System Product Name
  dmi.product.sku: SKU
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer
  version.compiz: compiz N/A
  version.libdrm2: libdrm2 2.4.101-2
  version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.4-2ubuntu1
  version.libgl1-mesa-glx: libgl1-mesa-glx N/A
  version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2.1
  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

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