[HP Omni 120-2110il AIO] Flickering white lines on screen

https://www.youtube.com/watch?v=GcAXAicoZqY

this is the video of my error
i am having this issue on all versions of ubuntu-- i have tried installing versions 20.04, 18.04.06, 12.04..
i have intel pentium g630 processor with intel graphics 2000 (Vram-256M). I used Windows 10 on my PC but i thought of switching to ubuntu when this problem arose.. The glitch shows up on ubuntu splash screen and remains there until i restart my pc with nomodeset parameter...i have reinstalled windows 10 but i want this issue to get fixed.. i need to use ubuntu ...pls....

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.11.0-27.29~20.04.1-generic 5.11.22
Uname: Linux 5.11.0-27-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.18
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Tue Mar 15 14:59:57 2022
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
GraphicsCard:
 Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0102] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Hewlett-Packard Company 2nd Generation Core Processor Family Integrated Graphics Controller [103c:2ac5]
InstallationDate: Installed on 2022-03-05 (9 days ago)
InstallationMedia: Ubuntu 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819)
MachineType: Hewlett-Packard 120-2110il
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-27-generic root=UUID=54d1c05e-a544-4510-8da7-87e1a7242e0f ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/17/2011
dmi.bios.release: 4.6
dmi.bios.vendor: AMI
dmi.bios.version: LEO_707
dmi.board.name: 2AC5
dmi.board.vendor: Quanta
dmi.board.version: 101
dmi.chassis.asset.tag: 4CS2040B0F
dmi.chassis.type: 3
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnAMI:bvrLEO_707:bd11/17/2011:br4.6:svnHewlett-Packard:pn120-2110il:pvr:rvnQuanta:rn2AC5:rvr101:cvnHewlett-Packard:ct3:cvr:
dmi.product.family: 103C_53316J G=D
dmi.product.name: 120-2110il
dmi.product.sku: QF135AA#ACJ
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.105-3~20.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 21.0.3-0ubuntu0.3~20.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.11-1ubuntu1~20.04.2
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