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Message #57208
[Bug 1311297] Re: Screen brightness cannot be adjusted on ASUS Eeepc 1015PEM
Tested with mainline kernel (linux-image-3.15.0-031500rc2-generic) -
Both hotkeys and the Brightness slider in the Brightness & Lock settings
dialogue change the screen brightness correctly.
** Tags added: kernel-fixed-upstream
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1311297
Title:
Screen brightness cannot be adjusted on ASUS Eeepc 1015PEM
Status in “linux” package in Ubuntu:
Confirmed
Bug description:
This is a regression. Up to 13.10 there was no problem changing
screen brightness on my Asus Eeepc 1015PEM. This machine has function
keys for changing the screen brightness up (with Fn+F6) and down
(with Fn+F5).
In 14.04 using the function keys causes the indicator to appear and
the the brightness bar moves appropriately, but there is no change to
screen brightness.
Using the slider on the (new?) Brightness and Lock settings form also
has no affect on the screen brightness. Operation of the function
keys will move the slider. However, repeated use of the function keys
causes the slider control to disappear from the form (as is found on a
machine where control of screen brightness by function keys are not
available).
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-24-generic 3.13.0-24.46
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic i686
NonfreeKernelModules: wl
ApportVersion: 2.14.1-0ubuntu3
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: tony 2031 F.... pulseaudio
CurrentDesktop: Unity
Date: Tue Apr 22 20:12:48 2014
HibernationDevice: RESUME=UUID=fcc3dc2b-0a3b-4dcf-98d9-b1f03b2c812e
InstallationDate: Installed on 2012-04-27 (724 days ago)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
MachineType: ASUSTeK Computer INC. 1015PEM
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic root=UUID=abf837ae-032d-4686-8803-27a1376ee9c5 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.13.0-24-generic N/A
linux-backports-modules-3.13.0-24-generic N/A
linux-firmware 1.127
SourcePackage: linux
UpgradeStatus: Upgraded to trusty on 2014-04-20 (2 days ago)
dmi.bios.date: 10/06/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0801
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: 1015PE
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: x.xx
dmi.chassis.asset.tag: 0x00000000
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer INC.
dmi.chassis.version: x.x
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0801:bd10/06/2010:svnASUSTeKComputerINC.:pn1015PEM:pvrx.x:rvnASUSTeKComputerINC.:rn1015PE:rvrx.xx:cvnASUSTeKComputerINC.:ct10:cvrx.x:
dmi.product.name: 1015PEM
dmi.product.version: x.x
dmi.sys.vendor: ASUSTeK Computer INC.
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References