apport information

** Attachment added: "ProcCpuinfo.txt"
   
https://bugs.launchpad.net/bugs/1686268/+attachment/4868095/+files/ProcCpuinfo.txt

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https://bugs.launchpad.net/bugs/1686268

Title:
  Backlight brightness level not restored after reboot

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  I am not sure if this is the right place to report this, so feel free
  to move it elsewhere.

  It looks like the systemd-backlight service (/lib/systemd/system
  /systemd-backlight@.service) does not restore the brightness level
  (although it saves it before shut-down).

  However the following command does restore the saved brightness:

  sudo /lib/systemd/systemd-backlight load backlight:intel_backlight

  As a temporary solution to automate it at boot I am using the
  following line added to the root cron:

  @reboot /lib/systemd/systemd-backlight load backlight:intel_backlight

  - Ubuntu 4.10.0-20.22-generic 4.10.8
  - Gnome 3.24

  Please, let me know if you need more info. Thanks.
  --- 
  ApportVersion: 2.20.4-0ubuntu4
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  dd         1540 F.... pulseaudio
  CurrentDesktop: GNOME
  DistroRelease: Ubuntu 17.04
  InstallationDate: Installed on 2017-04-12 (13 days ago)
  InstallationMedia: Ubuntu-GNOME 17.04 "Zesty Zapus" - Release amd64 (20170411)
  Lsusb:
   Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
   Bus 001 Device 002: ID 8087:0a2b Intel Corp. 
   Bus 001 Device 003: ID 1bcf:2b95 Sunplus Innovation Technology Inc. 
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  MachineType: Dell Inc. Precision 5520
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-20-generic.efi.signed 
root=/dev/mapper/nvme-ubuntu_gnome ro systemd.restore_state=1 quiet splash 
vt.handoff=7
  ProcVersionSignature: Ubuntu 4.10.0-20.22-generic 4.10.8
  RelatedPackageVersions:
   linux-restricted-modules-4.10.0-20-generic N/A
   linux-backports-modules-4.10.0-20-generic  N/A
   linux-firmware                             1.164
  Tags:  zesty
  Uname: Linux 4.10.0-20-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip input lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 03/29/2017
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.2.4
  dmi.board.name: 06X96V
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 10
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.2.4:bd03/29/2017:svnDellInc.:pnPrecision5520:pvr:rvnDellInc.:rn06X96V:rvrA00:cvnDellInc.:ct10:cvr:
  dmi.product.name: Precision 5520
  dmi.sys.vendor: Dell Inc.

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