In that case it sounds like a driver bug. Firstly please check you're not using the deprecated 'intel' Xorg driver. It should be the 'modesetting' driver, although the attached logs suggest you're already using that.
Secondly try live booting a newer Ubuntu release and tell us if it has the same problem: https://ubuntu.com/download/desktop -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-hwe-5.13 in Ubuntu. https://bugs.launchpad.net/bugs/2023927 Title: Screen flickering whe update images Status in linux-hwe-5.13 package in Ubuntu: Incomplete Bug description: Often, when there are small changes in image displayed, an horizontal flickering is observed. This happen for example on a mouse right button menu, or when a hyperlink description appears on the screen bottom when mouse pointer cross some field on a webpage, also when favorites menu appear. The flickering usually disappear in a few moments, sometimes (usually when a few pixels are updating) it can last for seconds. This flickering is caused by a late updating of some horizontal lines, so for awhile a few lines of previous image coexist with a majority of new ones ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.13.0-41.46~20.04.1-generic 5.13.19 Uname: Linux 5.13.0-41-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.23 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Wed Jun 14 22:44:12 2023 DistUpgraded: Fresh install DistroCodename: focal DistroVariant: ubuntu DkmsStatus: virtualbox, 6.1.32, 5.13.0-40-generic, x86_64: installed virtualbox, 6.1.32, 5.13.0-41-generic, x86_64: installed virtualbox, 6.1.32, 5.4.0-126-generic, x86_64: installed ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: Intel Corporation Device [8086:9a49] (rev 01) (prog-if 00 [VGA controller]) Subsystem: Device [1e39:a025] InstallationDate: Installed on 2022-01-01 (529 days ago) InstallationMedia: Ubuntu 20.04.3 LTS "Focal Fossa" - Release amd64 (20210819) Lsusb: Error: command ['lsusb'] failed with exit code 127: lsusb: symbol lookup error: lsusb: undefined symbol: libusb_error_name Lsusb-t: Error: command ['lsusb', '-t'] failed with exit code 127: lsusb: symbol lookup error: lsusb: undefined symbol: libusb_error_name Lsusb-v: Error: command ['lsusb', '-v'] failed with exit code 127: lsusb: symbol lookup error: lsusb: undefined symbol: libusb_error_name MachineType: MEDION S15449 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.13.0-41-generic root=UUID=cbfc0023-baf3-4a11-b0aa-6dadbd0f60f7 ro quiet splash pci=noaer vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/09/2021 dmi.bios.release: 5.19 dmi.bios.vendor: American Megatrends International, LLC. dmi.bios.version: 212 dmi.board.asset.tag: Default string dmi.board.name: M15T dmi.board.vendor: MEDION dmi.board.version: Default string dmi.chassis.asset.tag: Default string dmi.chassis.type: 10 dmi.chassis.vendor: MEDION dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInternational,LLC.:bvr212:bd04/09/2021:br5.19:svnMEDION:pnS15449:pvrDefaultstring:rvnMEDION:rnM15T:rvrDefaultstring:cvnMEDION:ct10:cvrDefaultstring:skuML-23000830031014: dmi.product.family: Akoya dmi.product.name: S15449 dmi.product.sku: ML-230008 30031014 dmi.product.version: Default string dmi.sys.vendor: MEDION version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.107-8ubuntu1~20.04.2 version.libgl1-mesa-dri: libgl1-mesa-dri 21.2.6-0ubuntu0.1~20.04.2 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.13-1ubuntu1~20.04.2 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 N/A 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/linux-hwe-5.13/+bug/2023927/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
