After fresh installation 19.10 on Dell vostro 15 3568 it is showing screen blinking when I try to unlock and locking with Super+L

I am new to report such issues so I just don't know what to share here. though below is the kernel and syslog of the system.

I having this issue with this model only as many of this model to test.

Kernel: 5.3.0-18-generic #19-Ubuntu SMP Tue Oct 8 20:14:06 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

Syslog:-

Feb 29 12:01:16 Bigstep-Vostro-15-3568 gnome-shell[1779]: == Stack trace for context 0x5603df1c4330 ==
Feb 29 12:01:16 Bigstep-Vostro-15-3568 gnome-shell[1779]: #0 5603e0fd7930 i resource:///org/gnome/shell/ui/workspace.js:709 (7fdf75972e50 @ 15)
Feb 29 12:01:16 Bigstep-Vostro-15-3568 gnome-shell[1779]: #1 7ffceebe4f80 b self-hosted:975 (7fdf75834160 @ 392)
Feb 29 12:01:17 Bigstep-Vostro-15-3568 gnome-shell[1779]: Object St.Button (0x5603e0eaccd0), has been already deallocated — impossible to get any property from it. This might be caused by the object having been destroyed from C code using something such as destroy(), dispose(), or remove() vfuncs.
Feb 29 12:01:17 Bigstep-Vostro-15-3568 gnome-shell[1779]: == Stack trace for context 0x5603df1c4330 ==
Feb 29 12:01:17 Bigstep-Vostro-15-3568 gnome-shell[1779]: #0 5603e0fd7930 i resource:///org/gnome/shell/ui/workspace.js:709 (7fdf75972e50 @ 15)
Feb 29 12:01:17 Bigstep-Vostro-15-3568 gnome-shell[1779]: #1 7ffceebe4f80 b self-hosted:975 (7fdf75834160 @ 392)
Feb 29 12:01:17 Bigstep-Vostro-15-3568 gnome-shell[1779]: Object St.Button (0x5603e0eaccd0), has been already deallocated — impossible to get any property from it. This might be caused by the object having been destroyed from C code using something such as destroy(), dispose(), or remove() vfuncs.
Feb 29 12:01:17 Bigstep-Vostro-15-3568 gnome-shell[1779]: == Stack trace for context 0x5603df1c4330 ==
Feb 29 12:01:17 Bigstep-Vostro-15-3568 gnome-shell[1779]: #0 7ffceebe4540 b resource:///org/gnome/shell/ui/workspace.js:709 (7fdf75972e50 @ 15)
Feb 29 12:01:17 Bigstep-Vostro-15-3568 gnome-shell[1779]: #1 7ffceebe4f80 b self-hosted:975 (7fdf75834160 @ 392)
Feb 29 12:01:18 Bigstep-Vostro-15-3568 gnome-shell[1779]: Object St.Button (0x5603e0eaccd0), has been already deallocated — impossible to get any property from it. This might be caused by the object having been destroyed from C code using something such as destroy(), dispose(), or remove() vfuncs.
Feb 29 12:01:18 Bigstep-Vostro-15-3568 gnome-shell[1779]: == Stack trace for context 0x5603df1c4330 ==
Feb 29 12:01:18 Bigstep-Vostro-15-3568 gnome-shell[1779]: #0 7ffceebe4ed0 b resource:///org/gnome/shell/ui/workspace.js:709 (7fdf75972e50 @ 15)
Feb 29 12:01:18 Bigstep-Vostro-15-3568 gnome-shell[1779]: #1 7ffceebe4f80 b self-hosted:975 (7fdf75834160 @ 392)
Feb 29 12:01:19 Bigstep-Vostro-15-3568 gnome-shell[1779]: Object St.Button (0x5603e0eaccd0), has been already deallocated — impossible to get any property from it. This might be caused by the object having been destroyed from C code using something such as destroy(), dispose(), or remove() vfuncs.
Feb 29 12:01:19 Bigstep-Vostro-15-3568 gnome-shell[1779]: == Stack trace for context 0x5603df1c4330 ==
Feb 29 12:01:19 Bigstep-Vostro-15-3568 gnome-shell[1779]: #0 7ffceebe4ed0 b resource:///org/gnome/shell/ui/workspace.js:709 (7fdf75972e50 @ 15)
Feb 29 12:01:19 Bigstep-Vostro-15-3568 gnome-shell[1779]: #1 7ffceebe4f80 b self-hosted:975 (7fdf75834160 @ 392)

ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: xorg 1:7.7+19ubuntu12
ProcVersionSignature: Ubuntu 5.3.0-18.19-generic 5.3.1
Uname: Linux 5.3.0-18-generic x86_64
ApportVersion: 2.20.11-0ubuntu8
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Sat Feb 29 11:49:13 2020
DistUpgraded: Fresh install
DistroCodename: eoan
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
 Intel Corporation Skylake GT2 [HD Graphics 520] [8086:1916] (rev 07) (prog-if 00 [VGA controller])
   Subsystem: Dell Skylake GT2 [HD Graphics 520] [1028:0793]
InstallationDate: Installed on 2020-02-28 (0 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
MachineType: Dell Inc. Vostro 15-3568
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-18-generic root=UUID=e4c9da5a-c5ed-4509-ac83-acf0ed89a193 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/23/2017
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 01.08.00
dmi.board.name: 05HRPP
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr01.08.00:bd03/23/2017:svnDellInc.:pnVostro15-3568:pvr:rvnDellInc.:rn05HRPP:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.family: Vostro
dmi.product.name: Vostro 15-3568
dmi.product.sku: 0793
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.99-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 19.2.1-1ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.5+git20191008-0ubuntu1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.0.1-1ubuntu1
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