*** This bug is a duplicate of bug 1225811 ***
https://bugs.launchpad.net/bugs/1225811
Public bug reported:
the change in the level of illumination of the screen, through the
corresponding option in the control panel, has no effect
ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: linux-image-3.11.0-14-generic 3.11.0-14.21
ProcVersionSignature: Ubuntu 3.11.0-14.21-generic 3.11.7
Uname: Linux 3.11.0-14-generic x86_64
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: alex 1443 F.... pulseaudio
alex 11159 F.... pulseaudio
Date: Tue Dec 17 18:50:13 2013
HibernationDevice: RESUME=UUID=04335018-6e1d-453d-a8ba-25ae1c34f2eb
InstallationDate: Installed on 2013-12-14 (2 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
MachineType: Dell Inc. Inspiron 5521
MarkForUpload: True
ProcEnviron:
LANGUAGE=it
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=it_IT.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-14-generic.efi.signed
root=UUID=d4cdcfba-0a53-41d0-a9ce-0516d3fab0f0 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.11.0-14-generic N/A
linux-backports-modules-3.11.0-14-generic N/A
linux-firmware 1.116
SourcePackage: linux
StagingDrivers: rts5139
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/22/2013
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A06
dmi.board.name: 0K08H3
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A06
dmi.modalias:
dmi:bvnDellInc.:bvrA06:bd02/22/2013:svnDellInc.:pnInspiron5521:pvrA06:rvnDellInc.:rn0K08H3:rvrA00:cvnDellInc.:ct8:cvrA06:
dmi.product.name: Inspiron 5521
dmi.product.version: A06
dmi.sys.vendor: Dell Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug saucy staging
** This bug has been marked a duplicate of bug 1225811
[Dell Inspiron 15R 5521] Can't toggle backlight brightness
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https://bugs.launchpad.net/bugs/1261853
Title:
impossible to adjust the screen backlight
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