OK, please verify the kernel version you're seeing the glitch in by running:
uname -a -- 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/1937072 Title: [Lenovo Yoga Slim 7 14IIL05] PSR causes incomplete screen redraws Status in linux package in Ubuntu: Triaged Status in linux-hwe-5.11 package in Ubuntu: Triaged Bug description: In every 6/10 boot my ubuntu failed to start stuck on blank screen. Sometime touchpad stop working and unable to change my brightness after installation at first all feature are perfectly fine except screen glitch.Screen performance is laggy. ProblemType: Bug DistroRelease: Ubuntu 21.04 Package: xorg 1:7.7+22ubuntu1 ProcVersionSignature: Ubuntu 5.11.0-25.27-generic 5.11.22 Uname: Linux 5.11.0-25-generic x86_64 ApportVersion: 2.20.11-0ubuntu65.1 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: pass CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Wed Jul 21 17:13:28 2021 DistUpgraded: Fresh install DistroCodename: hirsute DistroVariant: ubuntu ExtraDebuggingInterest: Yes, if not too technical GraphicsCard: Intel Corporation Iris Plus Graphics G7 [8086:8a52] (rev 07) (prog-if 00 [VGA controller]) Subsystem: Lenovo Iris Plus Graphics G7 [17aa:3a34] Subsystem: Lenovo GP107M [GeForce MX350] [17aa:3a34] InstallationDate: Installed on 2021-07-21 (0 days ago) InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420) MachineType: LENOVO 82A1 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-25-generic root=UUID=178639d7-12e5-45ac-a728-0643b1c58d44 ro quiet splash nomodeset vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/14/2021 dmi.bios.release: 1.31 dmi.bios.vendor: LENOVO dmi.bios.version: DHCN31WW dmi.board.asset.tag: ��������������� dmi.board.name: LNVNB161216 dmi.board.vendor: LENOVO dmi.board.version: SDK0Q55722 WIN dmi.chassis.asset.tag: ��������������� dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Yoga Slim 7 14IIL05 dmi.ec.firmware.release: 1.29 dmi.modalias: dmi:bvnLENOVO:bvrDHCN31WW:bd01/14/2021:br1.31:efr1.29:svnLENOVO:pn82A1:pvrYogaSlim714IIL05:rvnLENOVO:rnLNVNB161216:rvrSDK0Q55722WIN:cvnLENOVO:ct10:cvrYogaSlim714IIL05: dmi.product.family: Yoga Slim 7 14IIL05 dmi.product.name: 82A1 dmi.product.sku: LENOVO_MT_82A1_BU_idea_FM_Yoga Slim 7 14IIL05 dmi.product.version: Yoga Slim 7 14IIL05 dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.105-3~21.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 21.0.1-2 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:1.20.11-1ubuntu1.1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20200714-1ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1937072/+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
