It looks that I'm struck by the same bug. For me all KDE applications show display problems, not only just konsole. But konsole is the one that's used most often.
After you have "fixed" you installation now, could you please turn off the composite manager. Just use Shift-Alt-F12 for that. I do not get any display errors here as long as the composite manager runs. Is the problem back without composite manager? -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1944951 Title: delayed display update / konsole artifacts Status in xorg package in Ubuntu: Confirmed Bug description: Since one of the recent Impish updates, konsole shows artifacts and reacts slowly. In fact, it looks like screen updates are pipelined on pixel-group granularity somehow, and the pipeline isn't drained completely: When more text goes to the terminal (e.g., I type something), existing artifacts vanish, but new ones (in the new text) appear. Unfortunately, I don't see any of the previous konsole .deb releases (e.g. 4:21.08.1-1 or 4:21.08.0-1) on the Ubuntu mirrors, so I cannot go back and simply check whether the newest konsole updates are the culprit. I'm actually not sure whether konsole is responsible at all, I originally intended to file against xorg; however, I see those artifacts in neither xterm nor gnome-terminal. Find attached a screenshot (taken with an external camera; these artifacts cannot be recorded using a screenshot tool such as imagemagick's "import") where I ran "ls" in /tmp, and cleared the terminal with ^L afterwards. The screen is still littered with remains of the "ls" output. It took a few tries to get artifacts this pronounced, though; usually they only concern small parts of the terminal. ProblemType: Bug DistroRelease: Ubuntu 21.10 Package: xorg 1:7.7+22ubuntu1 ProcVersionSignature: Ubuntu 5.13.0-16.16-generic 5.13.13 Uname: Linux 5.13.0-16-generic x86_64 ApportVersion: 2.20.11-0ubuntu69 Architecture: amd64 CasperMD5CheckResult: unknown CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None CurrentDesktop: KDE Date: Fri Sep 24 08:09:18 2021 DistUpgraded: 2021-08-08 15:09:23,066 DEBUG Running PostInstallScript: '/usr/lib/ubuntu-advantage/upgrade_lts_contract.py' DistroCodename: impish DistroVariant: ubuntu GraphicsCard: Intel Corporation HD Graphics 530 [8086:191b] (rev 06) (prog-if 00 [VGA controller]) Subsystem: Lenovo HD Graphics 530 [17aa:5050] Subsystem: Lenovo GM108M [GeForce 940MX] [17aa:5050] InstallationDate: Installed on 2016-11-26 (1762 days ago) InstallationMedia: Kubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.1) MachineType: LENOVO 20FXS05500 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.13.0-16-generic root=/dev/mapper/vgubuntu-root ro kopt=root=/dev/mapper/vgubuntu-root resume=/dev/mapper/vgubuntu-swap nouveau.runpm=0 mitigations=off i915.i915_enable_fbc=0 SourcePackage: xorg UpgradeStatus: Upgraded to impish on 2021-08-08 (46 days ago) dmi.bios.date: 10/24/2019 dmi.bios.release: 2.30 dmi.bios.vendor: LENOVO dmi.bios.version: R07ET90W (2.30 ) dmi.board.asset.tag: Not Available dmi.board.name: 20FXS05500 dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.ec.firmware.release: 1.5 dmi.modalias: dmi:bvnLENOVO:bvrR07ET90W(2.30):bd10/24/2019:br2.30:efr1.5:svnLENOVO:pn20FXS05500:pvrThinkPadT460p:skuLENOVO_MT_20FX_BU_Think_FM_ThinkPadT460p:rvnLENOVO:rn20FXS05500:rvrNotDefined:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad T460p dmi.product.name: 20FXS05500 dmi.product.sku: LENOVO_MT_20FX_BU_Think_FM_ThinkPad T460p dmi.product.version: ThinkPad T460p dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.107-1 version.libgl1-mesa-dri: libgl1-mesa-dri 21.2.1-2ubuntu2 version.libgl1-mesa-glx: libgl1-mesa-glx 21.2.1-2ubuntu2 version.xserver-xorg-core: xserver-xorg-core 2:1.20.13-1ubuntu1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.6-2build1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2 version.xserver-xorg-video-intel: xserver-xorg-video-intel N/A version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1944951/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp

