Public bug reported:
No backlight slider is present and backlight hot keys do not function.
No backlight interface is detected.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-14-generic 3.13.0-14.34
ProcVersionSignature: Ubuntu 3.13.0-14.34-generic 3.13.5
Uname: Linux 3.13.0-14-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.13.2-0ubuntu5
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: grogg 2134 F.... pulseaudio
CurrentDesktop: GNOME
Date: Mon Mar 3 21:58:55 2014
HibernationDevice: RESUME=UUID=99d01de8-21f5-40d2-ad2d-55c129bdc93e
InstallationDate: Installed on 2014-03-04 (0 days ago)
InstallationMedia: Ubuntu-GNOME 14.04 "Trusty Tahr" - Alpha amd64 (20140226)
MachineType: Hewlett-Packard 23se-d494
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-3.13.0-14-generic.efi.signed
root=UUID=1ff47b74-2577-42d0-b1a3-1d43600a0aa7 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.13.0-14-generic N/A
linux-backports-modules-3.13.0-14-generic N/A
linux-firmware 1.125
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/25/2013
dmi.bios.vendor: AMI
dmi.bios.version: 80.04
dmi.board.asset.tag: 3CR40108R6
dmi.board.name: 2B04
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 1.02
dmi.chassis.asset.tag: 3CR40108R6
dmi.chassis.type: 3
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias:
dmi:bvnAMI:bvr80.04:bd09/25/2013:svnHewlett-Packard:pn23se-d494:pvr1.02:rvnHewlett-Packard:rn2B04:rvr1.02:cvnHewlett-Packard:ct3:cvr:
dmi.product.name: 23se-d494
dmi.product.version: 1.02
dmi.sys.vendor: Hewlett-Packard
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: amd64 apport-bug trusty
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https://bugs.launchpad.net/bugs/1287528
Title:
No backlight interface on HP ENVY 23se-d494 AIO
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