If those log messages are correlated at all then it would suggest the bug is in KDE(?)
dec 01 13:19:07 bizpep xdg-desktop-portal-kde[4970]: xdp-kde-background: GetAppState called: no parameters dec 01 13:19:37 bizpep xdg-desktop-portal-kde[4970]: xdp-kde-background: GetAppState called: no parameters dec 01 13:20:07 bizpep xdg-desktop-portal-kde[4970]: xdp-kde-background: GetAppState called: no parameters Although I am skeptical they relate to the black flashes. ** Package changed: linux (Ubuntu) => kwin (Ubuntu) ** Changed in: kwin (Ubuntu) Status: Incomplete => New -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1996900 Title: [amdgpu] [KDE] Display flashes black Status in kwin package in Ubuntu: New Bug description: During normal usage the display sometimes flashes black. In particular some websites cause intense flickering with several black frames per second. This actually seems to happen in both Wayland and xorg sessions and flashes the entire screen, so it seems more like a driver bug but I'm not sure where to file that. ProblemType: Bug DistroRelease: Ubuntu 22.10 Package: xorg 1:7.7+23ubuntu2 ProcVersionSignature: Ubuntu 5.19.0-23.24-generic 5.19.7 Uname: Linux 5.19.0-23-generic x86_64 ApportVersion: 2.23.1-0ubuntu3 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: unknown CompositorRunning: None CurrentDesktop: KDE Date: Thu Nov 17 14:00:15 2022 DistUpgraded: Fresh install DistroCodename: kinetic DistroVariant: ubuntu ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] Raphael [1002:164e] (rev c1) (prog-if 00 [VGA controller]) Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] Raphael [1002:164e] InstallationDate: Installed on 2022-10-30 (18 days ago) InstallationMedia: Lubuntu 22.10 "Kinetic Kudu" - Release amd64 (20221017.1) MachineType: ASUS System Product Name ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.19.0-23-generic root=UUID=bcf965e4-1a60-42fe-8033-214524d1908b ro quiet cryptdevice=UUID=66cc3c7b-e0bd-4535-b634-d56226dd88f1:luks-66cc3c7b-e0bd-4535-b634-d56226dd88f1 root=/dev/mapper/luks-66cc3c7b-e0bd-4535-b634-d56226dd88f1 splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 09/08/2022 dmi.bios.release: 6.3 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0603 dmi.board.asset.tag: Default string dmi.board.name: TUF GAMING X670E-PLUS dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0603:bd09/08/2022:br6.3:svnASUS:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnTUFGAMINGX670E-PLUS:rvrRev1.xx:cvnDefaultstring:ct3:cvrDefaultstring:skuSKU: dmi.product.family: To be filled by O.E.M. dmi.product.name: System Product Name dmi.product.sku: SKU dmi.product.version: System Version dmi.sys.vendor: ASUS version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.113-2 version.libgl1-mesa-dri: libgl1-mesa-dri 22.2.1-1ubuntu1 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:21.1.4-2ubuntu1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-3 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20210115-1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-2build1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/kwin/+bug/1996900/+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