*** This bug is a duplicate of bug 1163720 ***
https://bugs.launchpad.net/bugs/1163720
3.8.0-30-44 fixed my backlight. Has been working fine since. I have the
1080p dell xps 13 (L322x). I'm using xUbuntu. How can I check if I have
UEFI boot?
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https://bugs.launchpad.net/bugs/1169376
Title:
8086:0166 [Dell XPS 13 L322X] 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)
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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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