*** This bug is a duplicate of bug 1229591 ***
https://bugs.launchpad.net/bugs/1229591
@madvinegar: No, I don't know how to do that.
I can still experience the issue on 14.04.1 which is just crazy. I'm on
13.04 trying to avoid losing this functionality but now they took all
the repositories offline because its support life cycle ended. It would
seem that 14.04 support was the one that ended though given how this
hasn't even been looked at (along with many others bug reports).
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https://bugs.launchpad.net/bugs/1280394
Title:
8086:0116 [Dell Inspiron 14z (N411z)] Display brightness keys do not
work on kernels 3.11 and 3.13
Status in “linux” package in Ubuntu:
Confirmed
Bug description:
Brightness keys Fn+F4 and Fn+F5 (decrease and increase brightness) do not
work on 13.10 and 14.04.
On 12.04 (up to 12.04.3) and 13.04 worked ok.
That is, up to ubuntu repository kernel 3.8 the brightness keys worked ok.
On ubuntu repository kernels 3.11 and 3.13, the brightness keys do not
work. (this includes 12.04.4 that has kernel 3.11).
I currently have installed 14.04 with kernel 3.13.0-8.
However, brightness can be adjusted just fine by going to system settings >
Brightness Control and moving the slider back and forth.
So the problem is specific only to the function keys.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-8-generic 3.13.0-8.28
ProcVersionSignature: Ubuntu 3.13.0-8.28-generic 3.13.2
Uname: Linux 3.13.0-8-generic x86_64
ApportVersion: 2.13.2-0ubuntu2
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: mike 1549 F.... pulseaudio
CurrentDesktop: Unity
Date: Fri Feb 14 20:01:28 2014
HibernationDevice: RESUME=UUID=4ffb442c-e2bf-4dbd-8a25-6a4ef0e346f2
InstallationDate: Installed on 2014-01-25 (19 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140124)
MachineType: Dell Inc. Dell System Inspiron N411Z
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-8-generic
root=UUID=308a58c8-4425-4ae1-b9a5-86bee1de5030 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.13.0-8-generic N/A
linux-backports-modules-3.13.0-8-generic N/A
linux-firmware 1.124
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
WifiSyslog:
dmi.bios.date: 09/10/2012
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A06
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 0YWNPW
dmi.board.vendor: Dell Inc.
dmi.board.version: FAB1
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: 0.1
dmi.modalias:
dmi:bvnDellInc.:bvrA06:bd09/10/2012:svnDellInc.:pnDellSystemInspironN411Z:pvr:rvnDellInc.:rn0YWNPW:rvrFAB1:cvnDellInc.:ct8:cvr0.1:
dmi.product.name: Dell System Inspiron N411Z
dmi.sys.vendor: Dell Inc.
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