Brightness fn keys don't work on dell xps 13 ultrabook
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Confirmed
|
Medium
|
Unassigned |
Bug Description
Have found this bug with the last few kernels in raring ringtail with my dell xps 13 ultrabook. Neither of the fn keys for brightness work... very frustrating! This seems to be a regression in the kernel, so I have marked this as an issue with the linux-header-kernel packages.
When I boot the computer I have this issue, as well as when the screen times out, or when I wake from suspend. The screen is stuck on 100% brightness. I have created a simple 'brightness-fix' script which I've put in /usr/local/bin, and run as root whenever I need to have the brightness less than 100%. I haven't looked to implment a better workaround, as I'm hoping for a more permanent fix from the kernel devs. My script for this is below:
---- code ----
#!/bin/bash
#FIx for brightness control:
echo 0 > /sys/class/
---- end code ----
ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: linux-headers-
ProcVersionSign
Uname: Linux 3.8.0-17-generic x86_64
ApportVersion: 2.9.2-0ubuntu5
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
Date: Tue Apr 9 07:56:50 2013
EcryptfsInUse: Yes
HibernationDevice: RESUME=
InstallationDate: Installed on 2013-03-27 (12 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20130326)
MachineType: Dell Inc. Dell System XPS L321X
MarkForUpload: True
PackageArchitec
ProcEnviron:
LANGUAGE=en_AU:en
TERM=xterm
PATH=(custom, no user)
LANG=en_AU.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=
PulseList:
Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
No PulseAudio daemon running, or not running as session daemon.
RelatedPackageV
linux-
linux-
linux-firmware 1.104
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/14/2012
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A07
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.
dmi.modalias: dmi:bvnDellInc.
dmi.product.name: Dell System XPS L321X
dmi.sys.vendor: Dell Inc.
Changed in linux (Ubuntu): | |
importance: | Undecided → Medium |
This change was made by a bot.