hangs problem

[Abir]

many time a day when i am using pc ,system is getting hanged

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: xorg 1:7.7+19ubuntu7.1
ProcVersionSignature: Ubuntu 5.3.0-53.47~18.04.1-generic 5.3.18
Uname: Linux 5.3.0-53-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.15
Architecture: amd64
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Tue Jun 9 10:59:48 2020
DistUpgraded: Fresh install
DistroCodename: bionic
DistroVariant: ubuntu
ExtraDebuggingInterest: No
GraphicsCard:
 Advanced Micro Devices, Inc. [AMD/ATI] Raven Ridge [Radeon Vega Series / Radeon Vega Mobile Series] [1002:15dd] (rev c8) (prog-if 00 [VGA controller])
   Subsystem: Gigabyte Technology Co., Ltd Radeon RX Vega 11 [1458:d000]
MachineType: Gigabyte Technology Co., Ltd. A320M-S2H
ProcEnviron:
 LANGUAGE=en_IN:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_IN
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-53-generic root=UUID=38903ee5-fb7c-4faa-ac0c-0a499b16e531 ro quiet splash nomodeset vt.handoff=1
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/08/2018
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: F23
dmi.board.asset.tag: Default string
dmi.board.name: A320M-S2H-CF
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: x.x
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF23:bd08/08/2018:svnGigabyteTechnologyCo.,Ltd.:pnA320M-S2H:pvrDefaultstring:rvnGigabyteTechnologyCo.,Ltd.:rnA320M-S2H-CF:rvrx.x:cvnDefaultstring:ct3:cvrDefaultstring:
dmi.product.family: Default string
dmi.product.name: A320M-S2H
dmi.product.sku: Default string
dmi.product.version: Default string
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.99-1ubuntu1~18.04.2
version.libgl1-mesa-dri: libgl1-mesa-dri 19.2.8-0ubuntu0~18.04.3
version.libgl1-mesa-glx: libgl1-mesa-glx 19.2.8-0ubuntu0~18.04.3
version.xserver-xorg-core: xserver-xorg-core N/A
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A
version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A