According to AceLan's comment #3, #4
I think we can safely mark this bug as Won't Fix
For who is experiencing this, please adjust your screen brightness by the
button on the screen.
Thanks
** Changed in: linux (Ubuntu)
Status: Incomplete => Won't Fix
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https://bugs.launchpad.net/bugs/1203982
Title:
8086:0152 [Dell Inspiron One 2020] Unable to adjust screen brightness
Status in “linux” package in Ubuntu:
Won't Fix
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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