Hey! I just upgraded to 20.04 from 19.10, and had the same issue (same GPU - Intel Graphics UHD 620). I had the same problem a few months ago using the OIBAF ppa, and I thought it was because of the Open Source driver (built twice a day from their git repo) and since removing the PPA fixed the issue. I stepped upon this bug report when searching for a reason to my screen artifacts (same problems, same symptoms and same image as the original post). I've read the last comment "Please don't use the 'intel' driver. It is old and unsupported." and remembered that I had screen tearing issues a few months ago and that I added a custom XORG config (following https://askubuntu.com/questions/1066722/intel-screen-tearing-ubuntu-18-04). I just emptied '/etc/X11/xorg.conf.d/20-intel.conf', and rebooted, and it just worked fine from this! Please check if it could fix it for you too!
Sincerely. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1870725 Title: artifacts appearing on gnome shell Status in xserver-xorg-video-intel package in Ubuntu: Won't Fix Bug description: problems appear on the desktop and lock screen (not in gdm) ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27 Uname: Linux 5.4.0-21-generic x86_64 ApportVersion: 2.20.11-0ubuntu22 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Fri Apr 3 22:50:55 2020 DistUpgraded: 2020-04-03 20:26:10,751 ERROR got error from PostInstallScript ./xorg_fix_proprietary.py (g-exec-error-quark: Failed to execute child process “./xorg_fix_proprietary.py” (No such file or directory) (8)) DistroCodename: focal DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation UHD Graphics 620 [8086:5917] (rev 07) (prog-if 00 [VGA controller]) Subsystem: Lenovo UHD Graphics 620 [17aa:225d] InstallationDate: Installed on 2020-03-30 (4 days ago) InstallationMedia: Ubuntu 18.04.4 LTS "Bionic Beaver" - Release amd64 (20200203.1) MachineType: LENOVO 20L5CTO1WW ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-21-generic root=UUID=9aa1adb4-3c73-4d9b-8968-83630fb790f2 ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: Upgraded to focal on 2020-04-04 (0 days ago) dmi.bios.date: 02/19/2020 dmi.bios.vendor: LENOVO dmi.bios.version: N24ET56W (1.31 ) dmi.board.asset.tag: Not Available dmi.board.name: 20L5CTO1WW dmi.board.vendor: LENOVO dmi.board.version: SDK0K17763 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN24ET56W(1.31):bd02/19/2020:svnLENOVO:pn20L5CTO1WW:pvrThinkPadT480:rvnLENOVO:rn20L5CTO1WW:rvrSDK0K17763WIN:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad T480 dmi.product.name: 20L5CTO1WW dmi.product.sku: LENOVO_MT_20L5_BU_Think_FM_ThinkPad T480 dmi.product.version: ThinkPad T480 dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.100-4 version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.2-1ubuntu1 version.libgl1-mesa-glx: libgl1-mesa-glx 20.0.2-1ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.20.7-2ubuntu2 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+git20190815-1 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/xserver-xorg-video-intel/+bug/1870725/+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
