Public bug reported:
The keyboard backlight on my Sony Vaio has been working ever since I
installed 10.04. Since the upgrade to 11.10, the backlight no longer
comes on. (Judging by forum comments, this problem does not seem to be
specific to Sony laptops).
I can still enable the backlight by entering "echo 1 | sudo tee
/sys/devices/platform/sony-laptop/kbd_backlight" in a terminal, but
there doesn't seem to be any other way to enable it.
The expected behavior would be for the backlight to be enabled by
default, just like it was prior to 11.10.
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: linux-image-3.0.0-13-generic-pae 3.0.0-13.22
ProcVersionSignature: Ubuntu 3.0.0-13.22-generic-pae 3.0.6
Uname: Linux 3.0.0-13-generic-pae i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu4
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC275 Analog [ALC275 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: ebo 1794 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xdb400000 irq 44'
Mixer name : 'Intel IbexPeak HDMI'
Components : 'HDA:10ec0275,104d4100,00100005
HDA:80862804,104d4100,00100000'
Controls : 19
Simple ctrls : 11
Date: Sun Nov 6 23:52:49 2011
HibernationDevice: RESUME=UUID=9553d829-6252-4e0d-9f21-27795ec1d2de
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
MachineType: Sony Corporation VPCS111FM
ProcEnviron:
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-13-generic-pae
root=UUID=6cab5da8-0758-4bfc-a97d-86297802bbc3 ro quiet splash pcie_aspm=force
vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.0.0-13-generic-pae N/A
linux-backports-modules-3.0.0-13-generic-pae N/A
linux-firmware 1.60
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: Upgraded to oneiric on 2011-10-17 (21 days ago)
dmi.bios.date: 09/30/2010
dmi.bios.vendor: INSYDE
dmi.bios.version: R0310Q3
dmi.board.asset.tag: N/A
dmi.board.name: VAIO
dmi.board.vendor: Sony Corporation
dmi.board.version: N/A
dmi.chassis.asset.tag: N/A
dmi.chassis.type: 10
dmi.chassis.vendor: Sony Corporation
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnINSYDE:bvrR0310Q3:bd09/30/2010:svnSonyCorporation:pnVPCS111FM:pvrC10457J6:rvnSonyCorporation:rnVAIO:rvrN/A:cvnSonyCorporation:ct10:cvrN/A:
dmi.product.name: VPCS111FM
dmi.product.version: C10457J6
dmi.sys.vendor: Sony Corporation
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 oneiric running-unity staging
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https://bugs.launchpad.net/bugs/887013
Title:
Keyboard backlight no longer enabled by default in 11.10
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