I believe that is due to the machine missing an Nvidia driver AND running an older kernel that may not support the current GPU. Although if you have successfully updated the kernel already then it should be 6.8 which is new enough.
To avoid reinstalling (a newer) Ubuntu, you can try accessing the grub boot menu by tapping Escape before the OS loads. Once in the menu you will be able to select a safe/recovery mode. If you can get that to boot then please run: journalctl -b-1 > prevboot1.txt journalctl -b-2 > prevboot2.txt and attach the resulting text files here. Otherwise please install Ubuntu 24.04.1 LTS instead. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-hwe-6.2 in Ubuntu. https://bugs.launchpad.net/bugs/2078814 Title: [Lenovo LOQ 15ARP9] I cannot change or control backlight brightness Status in linux-hwe-6.2 package in Ubuntu: Won't Fix Bug description: My laptop is brand new and when i installed it first i could see the option to control brightness near to the sound control option.The option(sound bar option)was useless because my displays brightness wasnt changing.Now i cannot even see the option itself. ProblemType: Bug DistroRelease: Ubuntu 22.04 Package: xorg (not installed) ProcVersionSignature: Ubuntu 6.2.0-26.26~22.04.1-generic 6.2.13 Uname: Linux 6.2.0-26-generic x86_64 ApportVersion: 2.20.11-0ubuntu82.6 Architecture: amd64 BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log' CasperMD5CheckResult: unknown CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Tue Sep 3 18:39:10 2024 DistUpgraded: Fresh install DistroCodename: jammy DistroVariant: ubuntu ExtraDebuggingInterest: No GraphicsCard: NVIDIA Corporation Device [10de:28e0] (rev a1) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device [17aa:3e3c] MachineType: LENOVO 83JC ProcEnviron: LANGUAGE=en_IN:en PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_IN SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.2.0-26-generic root=UUID=846d43bf-9cc2-46e6-abe8-1aebc689baa7 ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 03/04/2024 dmi.bios.release: 1.6 dmi.bios.vendor: LENOVO dmi.bios.version: PQCN06WW dmi.board.asset.tag: NO Asset Tag dmi.board.name: LNVNB161216 dmi.board.vendor: LENOVO dmi.board.version: SDK0T76485 WIN dmi.chassis.asset.tag: NO Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: LOQ 15ARP9 dmi.ec.firmware.release: 1.6 dmi.modalias: dmi:bvnLENOVO:bvrPQCN06WW:bd03/04/2024:br1.6:efr1.6:svnLENOVO:pn83JC:pvrLOQ15ARP9:rvnLENOVO:rnLNVNB161216:rvrSDK0T76485WIN:cvnLENOVO:ct10:cvrLOQ15ARP9:skuLENOVO_MT_83JC_BU_idea_FM_LOQ15ARP9: dmi.product.family: LOQ 15ARP9 dmi.product.name: 83JC dmi.product.sku: LENOVO_MT_83JC_BU_idea_FM_LOQ 15ARP9 dmi.product.version: LOQ 15ARP9 dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.113-2~ubuntu0.22.04.1 version.libgl1-mesa-dri: libgl1-mesa-dri 23.2.1-1ubuntu3.1~22.04.2 version.libgl1-mesa-glx: libgl1-mesa-glx N/A version.xserver-xorg-core: xserver-xorg-core 2:21.1.4-2ubuntu1.7~22.04.11 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2ubuntu1 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/linux-hwe-6.2/+bug/2078814/+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