[Bug 2162919] [NEW] after updating to the latest kernel my brightness controling is not working. I run the bug report commant to se if does something I think it might be related to that.

Public bug reported: I don't know much about the essue but my brighness control is not working. slider works but no effect on the screen. I have a lenovo p51s laptop. ProblemType: Bug DistroRelease: Ubuntu 26.04 Package: linux-image-7.0.0-29-generic 7.0.0-29.29 ProcVersionSignature: Ubuntu 7.0.0-29.29-generic 7.0.12 Uname: Linux 7.0.0-29-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.34.1-0ubuntu0.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: shubham-mamodiya 4744 F.... wireplumber /dev/snd/seq: shubham-mamodiya 4731 F.... pipewire CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Wed Aug 5 21:46:50 2026 InstallationDate: Installed on 2026-07-06 (30 days ago) InstallationMedia: Ubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423.1) MachineType: LENOVO 20JY0009US ProcEnviron: LANG=en_US.UTF-8 PATH=(custom, no user) SHELL=/bin/bash TERM=xterm-ghostty ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-7.0.0-29-generic root=/dev/mapper/ubuntu--vg-ubuntu--lv ro quiet splash crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/14/2023 dmi.bios.release: 1.54 dmi.bios.vendor: LENOVO dmi.bios.version: N1VET64W (1.54 ) dmi.board.asset.tag: Not Available dmi.board.name: 20JY0009US dmi.board.vendor: LENOVO dmi.board.version: SDK0J40705 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.ec.firmware.release: 1.18 dmi.modalias: dmi:bvnLENOVO:bvrN1VET64W(1.54):bd07/14/2023:br1.54:efr1.18:svnLENOVO:pn20JY0009US:pvrThinkPadP51sW10DG:rvnLENOVO:rn20JY0009US:rvrSDK0J40705WIN:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_20JY_BU_Think_FM_ThinkPadP51sW10DG:pfaThinkPadP51sW10DG: dmi.product.family: ThinkPad P51s W10DG dmi.product.name: 20JY0009US dmi.product.sku: LENOVO_MT_20JY_BU_Think_FM_ThinkPad P51s W10DG dmi.product.version: ThinkPad P51s W10DG dmi.sys.vendor: LENOVO ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug resolute -- You received this bug notification because you are subscribed to linux in Ubuntu. Matching subscriptions: Bgg, Bmail, Nb https://bugs.launchpad.net/bugs/2162919 Title: after updating to the latest kernel my brightness controling is not working. I run the bug report commant to se if does something I think it might be related to that. Status in linux package in Ubuntu: New Bug description: I don't know much about the essue but my brighness control is not working. slider works but no effect on the screen. I have a lenovo p51s laptop. ProblemType: Bug DistroRelease: Ubuntu 26.04 Package: linux-image-7.0.0-29-generic 7.0.0-29.29 ProcVersionSignature: Ubuntu 7.0.0-29.29-generic 7.0.12 Uname: Linux 7.0.0-29-generic x86_64 NonfreeKernelModules: nvidia_modeset nvidia ApportVersion: 2.34.1-0ubuntu0.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: shubham-mamodiya 4744 F.... wireplumber /dev/snd/seq: shubham-mamodiya 4731 F.... pipewire CasperMD5CheckResult: pass CurrentDesktop: ubuntu:GNOME Date: Wed Aug 5 21:46:50 2026 InstallationDate: Installed on 2026-07-06 (30 days ago) InstallationMedia: Ubuntu 26.04 "Resolute Raccoon" - Release amd64 (20260423.1) MachineType: LENOVO 20JY0009US ProcEnviron: LANG=en_US.UTF-8 PATH=(custom, no user) SHELL=/bin/bash TERM=xterm-ghostty ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-7.0.0-29-generic root=/dev/mapper/ubuntu--vg-ubuntu--lv ro quiet splash crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/14/2023 dmi.bios.release: 1.54 dmi.bios.vendor: LENOVO dmi.bios.version: N1VET64W (1.54 ) dmi.board.asset.tag: Not Available dmi.board.name: 20JY0009US dmi.board.vendor: LENOVO dmi.board.version: SDK0J40705 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.ec.firmware.release: 1.18 dmi.modalias: dmi:bvnLENOVO:bvrN1VET64W(1.54):bd07/14/2023:br1.54:efr1.18:svnLENOVO:pn20JY0009US:pvrThinkPadP51sW10DG:rvnLENOVO:rn20JY0009US:rvrSDK0J40705WIN:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_20JY_BU_Think_FM_ThinkPadP51sW10DG:pfaThinkPadP51sW10DG: dmi.product.family: ThinkPad P51s W10DG dmi.product.name: 20JY0009US dmi.product.sku: LENOVO_MT_20JY_BU_Think_FM_ThinkPad P51s W10DG dmi.product.version: ThinkPad P51s W10DG dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2162919/+subscriptions