apport information

** Attachment added: "acpidump.txt"
   
https://bugs.launchpad.net/bugs/1944435/+attachment/5526690/+files/acpidump.txt

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https://bugs.launchpad.net/bugs/1944435

Title:
  Backlight on P17 Gen 1 not working Nvidia 470

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Updated to the Nvidia 460 driver and backlight (screen brightness) was not 
working so updated to the 470.63.01 before opening ticket as it also is not 
wortking on the P17 Gen 1 with BOE panel NE173QUM-N42.  It was working fine 
before the updates
  --- 
  ProblemType: Bug
  ApportVersion: 2.20.11-0ubuntu27.20
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  z          2151 F.... pulseaudio
   /dev/snd/controlC1:  z          2151 F.... pulseaudio
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  DistributionChannelDescriptor:
   # This is the distribution channel descriptor for the OEM CDs
   # For more information see 
http://wiki.ubuntu.com/DistributionChannelDescriptor
   canonical-oem-sutton-focal-amd64-20201012-119+sutton-simon-focal-amd64+iso
  DistroRelease: Ubuntu 20.04
  InstallationDate: Installed on 2021-01-04 (259 days ago)
  InstallationMedia: Ubuntu 20.04 "Focal" - Build amd64 LIVE Binary 
20201012-17:03
  MachineType: LENOVO 20SNZ5GCUS
  NonfreeKernelModules: nvidia_modeset nvidia
  Package: linux (not installed)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 i915drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.11.0-34-generic 
root=UUID=79aeb320-7842-4144-b3d7-30a10d0f8d0e ro quiet splash
  ProcVersionSignature: Ubuntu 5.11.0-34.36~20.04.1-generic 5.11.22
  RelatedPackageVersions:
   linux-restricted-modules-5.11.0-34-generic N/A
   linux-backports-modules-5.11.0-34-generic  N/A
   linux-firmware                             1.187.16
  Tags:  focal
  Uname: Linux 5.11.0-34-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip docker libvirt lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 08/03/2021
  dmi.bios.release: 1.23
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N30ET40W (1.23 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20SNZ5GCUS
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0J40697 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.ec.firmware.release: 1.11
  dmi.modalias: 
dmi:bvnLENOVO:bvrN30ET40W(1.23):bd08/03/2021:br1.23:efr1.11:svnLENOVO:pn20SNZ5GCUS:pvrThinkPadP17Gen1:skuLENOVO_MT_20SN_BU_Think_FM_ThinkPadP17Gen1:rvnLENOVO:rn20SNZ5GCUS:rvrSDK0J40697WIN:cvnLENOVO:ct10:cvrNone:
  dmi.product.family: ThinkPad P17 Gen 1
  dmi.product.name: 20SNZ5GCUS
  dmi.product.sku: LENOVO_MT_20SN_BU_Think_FM_ThinkPad P17 Gen 1
  dmi.product.version: ThinkPad P17 Gen 1
  dmi.sys.vendor: LENOVO

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