This could be one of a number of bugs. If you are using the old 'intel' driver then it's bug 1867668.
If you are using multiple monitors then it's bug 1853094. If you are using fullscreen apps then it's bug 1754284. If none of the above then this should probably move to the window manager ("marco"?). ** Package changed: xorg-server (Ubuntu) => marco (Ubuntu) ** Summary changed: - Ubuntu 20.04 screen tearing intel graphics + MATE desktop in Ubuntu 20.04 screen tearing intel graphics ** Changed in: marco (Ubuntu) Status: Incomplete => New -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/1888810 Title: MATE desktop in Ubuntu 20.04 screen tearing intel graphics Status in marco package in Ubuntu: New Bug description: Running a Ubuntu 20.04 with its default (kmodesetting ?) driver. Screen tearing is present and shows artefacts while scrolling in browsers (firefox and chromium) and videos. Ubuntu 5.4.0-40.44-generic 5.4.44 Processor/GPU is a core m5-6y54 (Skylake) --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu27.4 Architecture: amd64 BootLog: Error: [Errno 13] Keine Berechtigung: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: MATE DistUpgraded: Fresh install DistroCodename: focal DistroRelease: Ubuntu 20.04 DistroVariant: ubuntu ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation HD Graphics 515 [8086:191e] (rev 07) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company HD Graphics 515 [103c:8170] InstallationDate: Installed on 2020-05-10 (78 days ago) InstallationMedia: Ubuntu-MATE 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 003: ID 8087:0a2b Intel Corp. Bus 001 Device 002: ID 04f2:b560 Chicony Electronics Co., Ltd HP HD Camera Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: HP HP EliteBook Folio G1 Package: xorg-server (not installed) ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.4.0-42-generic root=UUID=92c467dc-e394-4f19-a6a2-e7cf918f0ffb ro quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44 Tags: focal ubuntu Uname: Linux 5.4.0-42-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 01/05/2020 dmi.bios.vendor: HP dmi.bios.version: N91 Ver. 01.45 dmi.board.name: 8170 dmi.board.vendor: HP dmi.board.version: KBC Version 29.73 dmi.chassis.type: 10 dmi.chassis.vendor: HP dmi.modalias: dmi:bvnHP:bvrN91Ver.01.45:bd01/05/2020:svnHP:pnHPEliteBookFolioG1:pvr:rvnHP:rn8170:rvrKBCVersion29.73:cvnHP:ct10:cvr: dmi.product.family: 103C_5336AN dmi.product.name: HP EliteBook Folio G1 dmi.product.sku: V1C39EA#ABD dmi.sys.vendor: HP version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.101-2 version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.8-0ubuntu1~20.04.1 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.8-2ubuntu2.2 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/marco/+bug/1888810/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp