Public bug reported:
Running 12.04.2 on the system and the brightness keys do not work. The
keys are a combination of Fn and Up or Down arrow.
On attempting to use the keys, there is no effect on screen brightness,
nor is there the brightness indicator.
However, I am able to control brightness using the Brightness settings
from "System Settings"
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.
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: STAC92xx Analog [STAC92xx Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: ubuntu 1407 F.... pulseaudio
CRDA:
country TW:
(2402 - 2472 @ 40), (3, 27)
(5270 - 5330 @ 40), (3, 17), DFS
(5735 - 5815 @ 40), (3, 30)
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xf7e30000 irq 48'
Mixer name : 'Intel PantherPoint HDMI'
Components : 'HDA:111d76df,10280584,00100203
HDA:80862806,80860101,00100000'
Controls : 23
Simple ctrls : 10
Date: Mon Mar 4 02:25:42 2013
HibernationDevice: RESUME=UUID=c0470f10-8436-437b-8009-ba2be8ecb392
InstallationMedia: Ubuntu 12.04.2 LTS "Precise Pangolin" - Release amd64
(20130213)
MachineType: Dell Inc. Latitude 6430U
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=4c3d4b80-eff7-43f9-bf80-3904f2788102 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
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/31/2012
dmi.bios.vendor: Dell Inc.
dmi.bios.version: X28
dmi.board.name: 0V4GYG
dmi.board.vendor: Dell Inc.
dmi.board.version: X01
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrX28:bd08/31/2012:svnDellInc.:pnLatitude6430U:pvr01:rvnDellInc.:rn0V4GYG:rvrX01:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude 6430U
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Assignee: Canonical Hardware Enablement Team (canonical-hwe-team)
Status: New
** Tags: 201208-11537 amd64 apport-bug precise qa-kernel-lts-testing
running-unity taipei-lab
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https://bugs.launchpad.net/bugs/1143778
Title:
[Dell Latitude 6430u] Brightness keys do not work
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