I got it working with the windows 2012 grub boot parameter that I found on
Google, which reads:
GRUB_CMDLINE_LINUX_DEFAULT=quiet splash acpi_osi=\!Windows 2012\
I also noticed starting with Linux kernel 3.10, this is supported out of
the box with no need to put in any grub parameters.
Thank you.
-J
On Jul 23, 2013 9:10 AM, Sundaravenkataraman 1180...@bugs.launchpad.net
wrote:
Hoping that this link will be useful to all...
http://askubuntu.com/questions/293925/brightness-buttons-not-working-
properly
--
You received this bug notification because you are subscribed to the bug
report.
https://bugs.launchpad.net/bugs/1180156
Title:
Brightness keys not working Lenovo E430.
Status in “linux” package in Ubuntu:
Expired
Bug description:
Ubuntu 13.04, Lenovo E430.
The brightness keys on this laptop act a little strange. If I hit the
brightness down key, it will drop the brightness to about 1%. If I
press brightness up, it does nothing at all. I see the pop ups come up
as if it's trying, but it never actually changes the brightness at
all.
If I go into the brightness and lock menu from system settings and
adjust the brightness via the slider it works absolutely fine. This
makes me wonder a few things. What is the difference between the
function keys and the slider in system settings? How is it one works
and the other doesn't? Is there a way to re-map the function keys to
adjust the brightness slider?
Also - I tried the mainline 3.9 kernel and it acted 100% identical to
the Ubuntu 3.8 kernel.
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: linux-image-3.8.0-19-generic 3.8.0-19.30
ProcVersionSignature: Ubuntu 3.8.0-19.30-generic 3.8.8
Uname: Linux 3.8.0-19-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
AudioDevicesInUse:
USERPID ACCESS COMMAND
/dev/snd/controlC0: jason 2027 F pulseaudio
CurrentDmesg: [ 12.393178] input: TPPS/2 IBM TrackPoint as
/devices/platform/i8042/serio1/serio2/input/input13
Date: Tue May 14 21:06:12 2013
HibernationDevice: RESUME=UUID=504647a2-9377-4a75-9669-218848b4ee6b
InstallationDate: Installed on 2013-05-14 (0 days ago)
InstallationMedia: Ubuntu 13.04 Raring Ringtail - Release amd64
(20130424)
MachineType: LENOVO 3254CTO
MarkForUpload: True
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
XDG_RUNTIME_DIR=set
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-19-generic
root=UUID=fa9f5123-ae3f-48f6-9132-94a21bf14459 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.8.0-19-generic N/A
linux-backports-modules-3.8.0-19-generic N/A
linux-firmware1.106
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/27/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: H0ET91WW (2.51 )
dmi.board.asset.tag: Not Available
dmi.board.name: 3254CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvrH0ET91WW(2.51):bd02/27/2013:svnLENOVO:pn3254CTO:pvrThinkPadEdgeE430:rvnLENOVO:rn3254CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 3254CTO
dmi.product.version: ThinkPad Edge E430
dmi.sys.vendor: LENOVO
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1180156/+subscriptions
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1180156
Title:
Brightness keys not working Lenovo E430.
Status in “linux” package in Ubuntu:
Expired
Bug description:
Ubuntu 13.04, Lenovo E430.
The brightness keys on this laptop act a little strange. If I hit the
brightness down key, it will drop the brightness to about 1%. If I
press brightness up, it does nothing at all. I see the pop ups come up
as if it's trying, but it never actually changes the brightness at
all.
If I go into the brightness and lock menu from system settings and
adjust the brightness via the slider it works absolutely fine. This
makes me wonder a few things. What is the difference between the
function keys and the slider in system settings? How is it one works
and the other doesn't? Is there a way to re-map the function keys to
adjust the brightness slider?
Also - I tried the mainline 3.9 kernel and it acted 100% identical to
the Ubuntu 3.8 kernel.
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: linux-image-3.8.0-19-generic 3.8.0-19.30
ProcVersionSignature: Ubuntu 3.8.0-19.30-generic 3.8.8
Uname: Linux 3.8.0-19-generic x86_64
