Comment 131 for bug 1169376

Chris,

It is true that I haven't posted anything lately, but many others have
taken up the slack. The XPS 13 is my primary computer and I had to switch
back to Windows because of several bugs (including this one) that were
causing me to spend more time troubleshooting than getting actual work
done. Sorry, but I cannot provide any further feedback at the moment. I
will eventually switch back to Ubuntu but, for now, I will now be able to
help troubleshoot.... Of course, there have been plenty of other people
posting updates. It seems incredible that you are still trying to fix this
after so long. I reported it immediately after it happened and while 13.04
was still in beta. You should have been able to just revert the change that
created the problem.

-Adrian

On Tue, Sep 3, 2013 at 8:29 AM, autra <email address hidden> wrote:

> "there hasn't been any activity in it recently"
> Are you kidding me?? :-)
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1169376
>
> Title:
> XPS13 backlight stopped working after update 3.8.0-18.28
>
> Status in Dell Sputnik:
> Confirmed
> Status in “linux” package in Ubuntu:
> Incomplete
>
> Bug description:
> I'm on 13.04 beta 2 and I've been updating daily. After today's
> update, I was asked to restart and, after the restart, the backlight
> stopped working. What's worse is that the backlight is stuck in the
> lowest possible setting. I can barely see enough to type out this bug
> report. This is not a hardware problem. When I restart the computer
> the backlight turns on property but burns off when the Ubuntu
> encryption screen comes up (I'm using full disk encryption). Please
> fix this as soon as possible.
>
> XPS 13 version: L322x
> Display version: FHD (1080p)
> ---
> ApportVersion: 2.9.2-0ubuntu8
> Architecture: amd64
> AudioDevicesInUse:
> USER PID ACCESS COMMAND
> /dev/snd/controlC0: cr45h 1901 F.... pulseaudio
> DistroRelease: Ubuntu 13.04
> HibernationDevice: RESUME=UUID=a5d2ab8b-a068-4a69-95a6-b4e955b290f5
> InstallationDate: Installed on 2013-04-08 (9 days ago)
> InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64
> (20130402.1)
> MachineType: Dell Inc. Dell System XPS L322X
> MarkForUpload: True
> Package: linux (not installed)
> ProcEnviron:
> TERM=xterm
> PATH=(custom, no user)
> XDG_RUNTIME_DIR=<set>
> LANG=en_US.UTF-8
> SHELL=/bin/bash
> ProcFB: 0 inteldrmfb
> ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.8.0-18-generic
> root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
> ProcVersionSignature: Ubuntu 3.8.0-18.28-generic 3.8.6
> RelatedPackageVersions:
> linux-restricted-modules-3.8.0-18-generic N/A
> linux-backports-modules-3.8.0-18-generic N/A
> linux-firmware 1.105
> Tags: raring
> Uname: Linux 3.8.0-18-generic x86_64
> UpgradeStatus: No upgrade log present (probably fresh install)
> UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
> dmi.bios.date: 01/22/2013
> dmi.bios.vendor: Dell Inc.
> dmi.bios.version: A07
> dmi.board.name: 0PJHXN
> dmi.board.vendor: Dell Inc.
> dmi.board.version: A00
> dmi.chassis.type: 8
> dmi.chassis.vendor: Dell Inc.
> dmi.chassis.version: 0.1
> dmi.modalias:
> dmi:bvnDellInc.:bvrA07:bd01/22/2013:svnDellInc.:pnDellSystemXPSL322X:pvr:rvnDellInc.:rn0PJHXN:rvrA00:cvnDellInc.:ct8:cvr0.1:
> dmi.product.name: Dell System XPS L322X
> dmi.sys.vendor: Dell Inc.
>
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>