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Message #57991
[Bug 1313830] Status changed to Confirmed
This change was made by a bot.
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1313830
Title:
LCD Backlight dims completely when disconnecting external monitor
Status in “linux” package in Ubuntu:
Confirmed
Bug description:
After undocking with external DVI monitor connected to dock the
laptop's internal LCD dims all the way (backlight still on, but as dim
as it goes). Keyboard backlight controls cause OSD indicator to show
backlight changing but no affect on LCD brightness.
Issue also reported for RedHat here:
https://bugzilla.redhat.com/show_bug.cgi?id=1067071
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-3.13.0-24-generic 3.13.0-24.46
ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
Uname: Linux 3.13.0-24-generic x86_64
ApportVersion: 2.14.1-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: dustin 2683 F.... pulseaudio
CurrentDesktop: Unity
Date: Mon Apr 28 10:13:42 2014
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=79c0f3ac-bda7-4a28-9ae1-6bb19ab0fd0d
InstallationDate: Installed on 2013-10-08 (201 days ago)
InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Beta amd64 (20130925.1)
MachineType: LENOVO 2306CTO
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-24-generic.efi.signed root=UUID=2f1bbe89-ca2f-4884-8fc6-8a476dd1a475 ro
RelatedPackageVersions:
linux-restricted-modules-3.13.0-24-generic N/A
linux-backports-modules-3.13.0-24-generic N/A
linux-firmware 1.127
SourcePackage: linux
UpgradeStatus: Upgraded to trusty on 2014-01-08 (109 days ago)
dmi.bios.date: 03/05/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: G2ETA0WW (2.60 )
dmi.board.asset.tag: Not Available
dmi.board.name: 2306CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Defined
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvrG2ETA0WW(2.60):bd03/05/2013:svnLENOVO:pn2306CTO:pvrThinkPadX230:rvnLENOVO:rn2306CTO:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 2306CTO
dmi.product.version: ThinkPad X230
dmi.sys.vendor: LENOVO
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References