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[Po-Hsu Lin <po-hsu.lin@xxxxxxxxxxxxx>]

Public bug reported:

CID: 201301-12632 Dell Inspiron One 2020

On this all-in-one desktop, I was unable to adjust screen brightness in System Settings/Brightness and Lock
The slidebar of brightness level could be freely adjusted , but nothing happens.

The OSD works fine on this system, screen brightness could be adjusted through it
But the change is not reflected in "Brightness and Lock"

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.5.0-23-generic 3.5.0-23.35~precise1
ProcVersionSignature: Ubuntu 3.5.0-23.35~precise1-generic 3.5.7.2
Uname: Linux 3.5.0-23-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.25.
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: PCH [HDA Intel PCH], device 0: ALC662 rev3 Analog [ALC662 rev3 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: PCH [HDA Intel PCH], device 0: ALC662 rev3 Analog [ALC662 rev3 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC0:  ubuntu     1575 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'PCH'/'HDA Intel PCH at 0xf7d00000 irq 42'
   Mixer name	: 'Realtek ALC662 rev3'
   Components	: 'HDA:10ec0662,10280579,00100300'
   Controls      : 17
   Simple ctrls  : 8
Date: Tue Jul 23 02:47:00 2013
HibernationDevice: RESUME=UUID=0c9d79aa-e95b-4c59-b8e4-c51b862b1982
InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release amd64 (20130213)
MachineType: Dell Inc. Inspiron One 2020
MarkForUpload: True
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-23-generic root=UUID=36293b43-a3d7-4ff2-a6f7-608f8002990b ro quiet splash initcall_debug vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-3.5.0-23-generic N/A
 linux-backports-modules-3.5.0-23-generic  N/A
 linux-firmware                            1.79.1
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/30/2013
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A05
dmi.board.name: 03KE02
dmi.board.vendor: Dell Inc.
dmi.board.version: X02
dmi.chassis.type: 3
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA05:bd01/30/2013:svnDellInc.:pnInspironOne2020:pvr:rvnDellInc.:rn03KE02:rvrX02:cvnDellInc.:ct3:cvr:
dmi.product.name: Inspiron One 2020
dmi.sys.vendor: Dell Inc.

** Affects: linux (Ubuntu)
     Importance: Undecided
     Assignee: Anthony Wong (anthonywong)
         Status: New


** Tags: 201301-12632 amd64 apport-bug blocks-hwcert precise qa-kernel-lts-testing running-unity taipei-lab

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https://bugs.launchpad.net/bugs/1203982

Title:
  [Dell Inspiron One 2020] Unable to adjust screen brightness

Status in “linux” package in Ubuntu:
  New

Bug description:
  CID: 201301-12632 Dell Inspiron One 2020

  On this all-in-one desktop, I was unable to adjust screen brightness in System Settings/Brightness and Lock
  The slidebar of brightness level could be freely adjusted , but nothing happens.

  The OSD works fine on this system, screen brightness could be adjusted through it
  But the change is not reflected in "Brightness and Lock"

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.5.0-23-generic 3.5.0-23.35~precise1
  ProcVersionSignature: Ubuntu 3.5.0-23.35~precise1-generic 3.5.7.2
  Uname: Linux 3.5.0-23-generic x86_64
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.25.
  AplayDevices:
   **** List of PLAYBACK Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: ALC662 rev3 Analog [ALC662 rev3 Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  ApportVersion: 2.0.1-0ubuntu17.1
  Architecture: amd64
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: ALC662 rev3 Analog [ALC662 rev3 Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ubuntu     1575 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xf7d00000 irq 42'
     Mixer name	: 'Realtek ALC662 rev3'
     Components	: 'HDA:10ec0662,10280579,00100300'
     Controls      : 17
     Simple ctrls  : 8
  Date: Tue Jul 23 02:47:00 2013
  HibernationDevice: RESUME=UUID=0c9d79aa-e95b-4c59-b8e4-c51b862b1982
  InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release amd64 (20130213)
  MachineType: Dell Inc. Inspiron One 2020
  MarkForUpload: True
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-23-generic root=UUID=36293b43-a3d7-4ff2-a6f7-608f8002990b ro quiet splash initcall_debug vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.5.0-23-generic N/A
   linux-backports-modules-3.5.0-23-generic  N/A
   linux-firmware                            1.79.1
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 01/30/2013
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A05
  dmi.board.name: 03KE02
  dmi.board.vendor: Dell Inc.
  dmi.board.version: X02
  dmi.chassis.type: 3
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrA05:bd01/30/2013:svnDellInc.:pnInspironOne2020:pvr:rvnDellInc.:rn03KE02:rvrX02:cvnDellInc.:ct3:cvr:
  dmi.product.name: Inspiron One 2020
  dmi.sys.vendor: Dell Inc.

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