[Dell Studio XPS 1640] keyboard stops responding after backlight toggle

[apopovas]

I am usind Ubuntu 11.10 x64 on Dell Studio XPS 16 laptop whitch has a keyboard backlight. Everything works fine, except if i try to toggle backlight (to change brightness or to turn it off while on battery), all keyboard seems to stop working, but shortcuts still work - i can kill X, change music, etc.

Edit: it seems same situation is using ubuntu 12.04..
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0-0ubuntu2
Architecture: amd64
DistroRelease: Ubuntu 12.04
HibernationDevice: RESUME=UUID=f963a452-1f94-4294-aaaf-b9532de52b62
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328)
MachineType: Dell Inc. Studio XPS 1640
NonfreeKernelModules: fglrx
Package: linux (not installed)
ProcEnviron:
 TERM=xterm
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-21-generic root=UUID=fd037b24-4917-4420-9a04-5d049fab4493 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.2.0-21.34-generic 3.2.13
SourcePackage: linux
Tags: precise precise
Uname: Linux 3.2.0-21-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 05/07/2009
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A07
dmi.board.name: 0W497D
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:bd05/07/2009:svnDellInc.:pnStudioXPS1640:pvrA073:rvnDellInc.:rn0W497D:rvrA07:cvnDellInc.:ct8:cvrA07:
dmi.product.name: Studio XPS 1640
dmi.product.version: A073
dmi.sys.vendor: Dell Inc.

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/962402/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Brad Figg (brad-figg)]

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

apport-collect 962402

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.

[apopovas (apopovas)]

Doesn't happen every time. Can't catch particular reasons at the moment, bus after the 'happening' it is obvious i can't do anything about it if I'm not prepared - cannot type anything, cannot launch terminal (dash home button stops working either) to get logs.

[Joseph Salisbury (jsalisbury)]

Can you run the following command to add additional debug information to this bug?

apport-collect 962402

[apopovas (apopovas)]

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[rouxero (rodhe-deb)]

AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu7
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC1: rodhe 1902 F.... pulseaudio
 /dev/snd/controlC0: rodhe 1902 F.... pulseaudio
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfc500000 irq 47'
   Mixer name : 'IDT 92HD73C1X5'
   Components : 'HDA:111d7675,102802be,00100103'
   Controls : 17
   Simple ctrls : 10
Card1.Amixer.info:
 Card hw:1 'HDMI'/'HDA ATI HDMI at 0xfc010000 irq 48'
   Mixer name : 'ATI R6xx HDMI'
   Components : 'HDA:1002aa01,00aa0100,00100100'
   Controls : 6
   Simple ctrls : 1
Card1.Amixer.values:
 Simple mixer control 'IEC958',0
   Capabilities: pswitch pswitch-joined penum
   Playback channels: Mono
   Mono: Playback [on]
DistroRelease: Ubuntu 12.04
HibernationDevice: RESUME=UUID=06ebc976-4ca7-42f6-88eb-7bb2296a85f3
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
MachineType: Dell Inc. Studio 1555
NonfreeKernelModules: fglrx
Package: linux (not installed)
ProcEnviron:
 LANGUAGE=es_AR:es
 TERM=xterm
 PATH=(custom, no user)
 LANG=es_AR.UTF-8
 SHELL=/bin/bash
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic-pae root=UUID=ede63b97-6cb2-4f03-bc31-793ccd9b3408 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.2.0-24.39-generic-pae 3.2.16
RelatedPackageVersions:
 linux-restricted-modules-3.2.0-24-generic-pae N/A
 linux-backports-modules-3.2.0-24-generic-pae N/A
 linux-firmware 1.79
SourcePackage: linux
Tags: precise precise
Uname: Linux 3.2.0-24-generic-pae i686
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 11/07/2009
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A08
dmi.board.vendor: Dell Inc.
dmi.board.version: A08
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: A08
dmi.modalias: dmi:bvnDellInc.:bvrA08:bd11/07/2009:svnDellInc.:pnStudio1555:pvrA08:rvnDellInc.:rn:rvrA08:cvnDellInc.:ct8:cvrA08:
dmi.product.name: Studio 1555
dmi.product.version: A08
dmi.sys.vendor: Dell Inc.

[rouxero (rodhe-deb)]

apport information

[Zach (akf-zach-nw2)]

Button (Fn + F6) disables my right touchpad button as well as my keyboard, excluding Fn + F* keys. Seems like it would have something to do with Fn+F6 being bound to some shortcut from hell but I'm not seeing it anywhere.

[Zach (akf-zach-nw2)]

PS this is a Dell Studio 1555 running Ubuntu Precise 12.04

[Bob Merhebi (bobmerhebi)]

This also occurs on my Dell Studio XPS 1640.

I found that you don't need to kill X to regain functionality of the keyboard; just move to any virtual terminal (i.e; tty) using Fn+F# & back toX on F7.

@Zach: I cannot confirm this on my laptop!

P.S.: some of you might also be affected by the following bugs:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/969453
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/41301

Description: Ubuntu 12.04.1 LTS
Release: 12.04
3.2.0-33-generic
amd64

[Dave Campbell (dav-campbell)]

I have the same keyboard backlight issue with my Dell Studio XPS 1640.

Gnome 3 is probably relevant. I have experienced exactly the same problem under Ubuntu, Linux Mint Cinnamon and Fedora.

[Pierce Gerhart (piercegerhart)]

Similar problem with Dell Studio 1555 on Quantal. Let me know if I can post any logs that might be useful.

[penalvch (penalvch)]

apopovas, is this still an issue for you in the latest precise kernel?

[apopovas (apopovas)]

I do not know - that laptop died a year ago :)

Best regards,
Andrius Popovas

On 11/17/2014 01:57 AM, Christopher M. Penalver wrote:
> apopovas, is this still an issue for you in the latest precise kernel?
>
> ** Tags added: bios-outdated-a15
>
> ** Package changed: ubuntu => linux (Ubuntu)
>
> ** Changed in: linux (Ubuntu)
> Importance: Medium => Low
>
> ** Changed in: linux (Ubuntu)
> Status: Confirmed => Incomplete
>

[penalvch (penalvch)]

apopovas, this bug report is being closed due to your last comment https://bugs.launchpad.net/ubuntu/+source/linux/+bug/962402/comments/40 regarding you no longer have the hardware. For future reference you can manage the status of your own bugs by clicking on the current status in the yellow line and then choosing a new status in the revealed drop down box. You can learn more about bug statuses at https://wiki.ubuntu.com/Bugs/Status. Thank you again for taking the time to report this bug and helping to make Ubuntu better. Please submit any future bugs you may find.