Dell XPS 15 (LX501) unable to adjust brightness

Bug #674970 reported by Jesper Larsen on 2010-11-13
28
This bug affects 5 people
Affects Status Importance Assigned to Milestone
NULL Project
Undecided
Unassigned
linux (Ubuntu)
Undecided
Unassigned

Bug Description

Dell XPS 15 (LX501) running Ubuntu 10.10.

- Not being able to adjust screen brightness

$uname -a

Linux ** 2.6.35-22-generic #35-Ubuntu SMP Sat Oct 16 20:45:36 UTC 2010 x86_64 GNU/Linux

Jesper Larsen (knorr) wrote :
Jesper Larsen (knorr) wrote :
Jesper Larsen (knorr) wrote :
tags: added: kj-triage
Krunal Patel (patelkrunal311) wrote :

I have the same exact laptop and the same exact problems. The dell tech support guy is coming to replace the motherboard for the ac adapter issue.

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 674970

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

Changed in linux:
status: New → Incomplete
tags: added: maverick

AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC665 Analog [ALC665 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: pgrande 2026 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf0a00000 irq 56'
   Mixer name : 'Realtek ALC665'
   Components : 'HDA:10ec0665,1028046e,00100003'
   Controls : 22
   Simple ctrls : 11
Card1.Amixer.info:
 Card hw:1 'NVidia'/'HDA NVidia at 0xcdefc000 irq 17'
   Mixer name : 'Nvidia GPU 14 HDMI/DP'
   Components : 'HDA:10de0014,10de0101,00100100'
   Controls : 16
   Simple ctrls : 4
DistroRelease: Ubuntu 11.04
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110416)
MachineType: Dell Inc. XPS L501X
NonfreeKernelModules: nvidia
Package: linux (not installed)
ProcEnviron:
 LANGUAGE=es_ES:en
 PATH=(custom, user)
 LANG=es_ES.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-11-generic root=UUID=44c6beff-8e42-4702-9302-e130b1fce226 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 2.6.38-11.47-generic 2.6.38.8
RelatedPackageVersions:
 linux-restricted-modules-2.6.38-11-generic N/A
 linux-backports-modules-2.6.38-11-generic N/A
 linux-firmware 1.52.1
Tags: natty
Uname: Linux 2.6.38-11-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin audio cdrom dialout dip fax floppy fuse lpadmin netdev plugdev powerdev sambashare tape vboxusers video
dmi.bios.date: 03/29/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A07
dmi.board.name: 00YWG2
dmi.board.vendor: Dell Inc.
dmi.board.version: A07
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A07
dmi.modalias: dmi:bvnDellInc.:bvrA07:bd03/29/2011:svnDellInc.:pnXPSL501X:pvrA07:rvnDellInc.:rn00YWG2:rvrA07:cvnDellInc.:ct8:cvrA07:
dmi.product.name: XPS L501X
dmi.product.version: A07
dmi.sys.vendor: Dell Inc.

tags: added: apport-collected natty

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Gar Bage (garbage) wrote : CRDA.txt

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Gar Bage (garbage) wrote : Lspci.txt

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Gar Bage (garbage) wrote : Lsusb.txt

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Changed in linux:
status: Incomplete → Confirmed

Jesper Larsen, thank you for reporting this and helping make Ubuntu better. Regarding your Bug Description:
Not being able to adjust screen brightness
 - Battery is wrongly reported as not rechargeable, and with capacity lower than 5Wh
 - No valid temperature readings (I get one that is always 27 degrees)

Please do not stack multiple issues into one bug. Hence, this bug will be focused on the first issue mentioned. If you have any further problems, feel free to file seperate reports, one for each issue.
As well, please make a comment on this report regarding the results of following: https://wiki.ubuntu.com/Kernel/Debugging/Backlight

Changed in linux (Ubuntu):
status: New → Incomplete
Changed in linux:
status: Confirmed → Incomplete
description: updated
summary: - Dell XPS 15 (LX501) ACPI issues
+ Dell XPS 15 (LX501) unable to adjust brightness

Jesper Larsen, in addition to following comment #32, please execute at the Terminal:
apport-collect 674970

AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu7
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC665 Analog [ALC665 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: arthalion7 2211 F.... pulseaudio
 /dev/snd/controlC0: arthalion7 2211 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf0900000 irq 51'
   Mixer name : 'Intel IbexPeak HDMI'
   Components : 'HDA:10ec0665,1028046e,00100003 HDA:80862804,80860101,00100000'
   Controls : 32
   Simple ctrls : 14
Card1.Amixer.info:
 Card hw:1 'NVidia'/'HDA NVidia at 0xadefc000 irq 17'
   Mixer name : 'Nvidia GPU 14 HDMI/DP'
   Components : 'HDA:10de0014,10de0101,00100100'
   Controls : 24
   Simple ctrls : 4
DistroRelease: Ubuntu 12.04
HibernationDevice: RESUME=UUID=027a8a19-4a64-4e89-af5d-38c78106b625
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
MachineType: Dell Inc. XPS L501X
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-24-generic root=UUID=100cf765-b693-4eba-b9bb-7e14f48055e0 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.2.0-24.38-generic 3.2.16
RelatedPackageVersions:
 linux-restricted-modules-3.2.0-24-generic N/A
 linux-backports-modules-3.2.0-24-generic N/A
 linux-firmware 1.79
SourcePackage: linux
StagingDrivers: mei
Tags: precise staging precise staging
Uname: Linux 3.2.0-24-generic x86_64
UpgradeStatus: Upgraded to precise on 2012-04-09 (26 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 10/15/2010
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A03
dmi.board.name: 00CKNG
dmi.board.vendor: Dell Inc.
dmi.board.version: A03
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A03
dmi.modalias: dmi:bvnDellInc.:bvrA03:bd10/15/2010:svnDellInc.:pnXPSL501X:pvrA03:rvnDellInc.:rn00CKNG:rvrA03:cvnDellInc.:ct8:cvrA03:
dmi.product.name: XPS L501X
dmi.product.version: A03
dmi.sys.vendor: Dell Inc.

tags: added: precise staging

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Alex Riva (rivaa) wrote : CRDA.txt

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Alex Riva (rivaa) wrote : Lspci.txt

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Alex Riva (rivaa) wrote : Lsusb.txt

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Alex Riva (rivaa) wrote : RfKill.txt

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Alex Riva (rivaa) wrote : UdevDb.txt

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affects: linux → null
Changed in null:
status: Incomplete → Invalid

Gar Bage / Alex Riva, please do not apport-collect to this report. If you are having a problem in Ubuntu, please execute the following via the Terminal and feel free to subscribe me to it:
ubuntu-bug linux

Thanks!

Launchpad Janitor (janitor) wrote :

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

Changed in linux (Ubuntu):
status: Incomplete → Expired
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