Please test latest mainline kernel:
https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.10-rc2/amd64/

** Changed in: linux (Ubuntu)
       Status: Confirmed => Incomplete

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https://bugs.launchpad.net/bugs/1898505

Title:
  weird screen display

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Hi,
  After Resuming my system after sleep mode,display shows overlapping of 
multiple pages.Initially it shows black screen after that when I try to switch 
to different tab it shows partial display of previous tabs as well.
  This issue is also happening with Slack and other software as well.
  --- 
  ProblemType: Bug
  ApportVersion: 2.20.11-0ubuntu27.9
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  aradhana   1567 F.... pulseaudio
   /dev/snd/controlC0:  aradhana   1567 F.... pulseaudio
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  DistroRelease: Ubuntu 20.04
  InstallationDate: Installed on 2019-09-08 (396 days ago)
  InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 
(20180725)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 003: ID 0b05:1866 ASUSTek Computer, Inc. N-KEY Device
   Bus 001 Device 006: ID 413c:301a Dell Computer Corp. Dell MS116 USB Optical 
Mouse
   Bus 001 Device 004: ID 8087:0aaa Intel Corp. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: ASUSTeK COMPUTER INC. Strix G531GT_G531GT
  NonfreeKernelModules: nvidia_modeset nvidia
  Package: linux (not installed)
  ProcFB: 0 i915drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-48-generic 
root=UUID=e2ccc566-1c2a-4ccf-b96e-7666bb4ccaec ro nouveau.modeset=0 quiet 
splash vt.handoff=7
  ProcVersionSignature: Ubuntu 5.4.0-48.52-generic 5.4.60
  RelatedPackageVersions:
   linux-restricted-modules-5.4.0-48-generic N/A
   linux-backports-modules-5.4.0-48-generic  N/A
   linux-firmware                            1.187.3
  Tags:  focal
  Uname: Linux 5.4.0-48-generic x86_64
  UpgradeStatus: Upgraded to focal on 2020-10-03 (4 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 04/19/2019
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: G531GT.300
  dmi.board.asset.tag: ATN12345678901234567
  dmi.board.name: G531GT
  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.:bvrG531GT.300:bd04/19/2019:svnASUSTeKCOMPUTERINC.:pnStrixG531GT_G531GT:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnG531GT:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
  dmi.product.family: Strix
  dmi.product.name: Strix G531GT_G531GT
  dmi.product.version: 1.0
  dmi.sys.vendor: ASUSTeK COMPUTER INC.

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