*** This bug is a duplicate of bug 1924624 *** https://bugs.launchpad.net/bugs/1924624
Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 1924624, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find. ** This bug has been marked a duplicate of bug 1924624 After upgrade to kernel 5.8.0-49/50 with Intel Gen7 (Haswell/Ivy Bridge) graphics a lot of glitches render screen unusable -- 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/1927919 Title: Screen flicker, sections going dark, icons and filenames vanishing, flickering or looking jumbled up Status in xorg package in Ubuntu: New Bug description: Started about 2 weeks ago, tried reinstalling Ubuntu20lts as fix yet issue persists. I can't use terminal because whatever I type, after the third letter things vanish, or become jumbled and impossible to recognise. Attempted updating intel drivers but wasn't successful, I'm not the best at this sort of thing. ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: xorg 1:7.7+19ubuntu14 ProcVersionSignature: Ubuntu 5.8.0-50.56~20.04.1-generic 5.8.18 Uname: Linux 5.8.0-50-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.16 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: skip CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Mon May 10 09:22:33 2021 DistUpgraded: Fresh install DistroCodename: focal DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b) (prog-if 00 [VGA controller]) Subsystem: Lenovo Haswell-ULT Integrated Graphics Controller [17aa:220c] InstallationDate: Installed on 2021-05-09 (0 days ago) InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1) MachineType: LENOVO 20B7S0XX0L ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-50-generic root=UUID=ba39f6c6-e11e-4a3c-abb7-d8d45b02a4a6 ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/21/2014 dmi.bios.release: 2.22 dmi.bios.vendor: LENOVO dmi.bios.version: GJET72WW (2.22 ) dmi.board.asset.tag: Not Available dmi.board.name: 20B7S0XX0L dmi.board.vendor: LENOVO dmi.board.version: 0B98401 PRO dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.ec.firmware.release: 1.9 dmi.modalias: dmi:bvnLENOVO:bvrGJET72WW(2.22):bd02/21/2014:br2.22:efr1.9:svnLENOVO:pn20B7S0XX0L:pvrThinkPadT440:rvnLENOVO:rn20B7S0XX0L:rvr0B98401PRO:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.family: ThinkPad T440 dmi.product.name: 20B7S0XX0L dmi.product.sku: LENOVO_MT_20B7_BU_Think_FM_ThinkPad T440 dmi.product.version: ThinkPad T440 dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.102-1ubuntu1~20.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 20.2.6-0ubuntu0.20.04.1 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.9-2ubuntu1.2~20.04.2 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 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/xorg/+bug/1927919/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp