4.5-rc1 and above bug exists
kernel-bug-exists-upstream-4.5-rc1
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1645985
Title:
ubuntu 1404_HWE_EOL kernel breaks Thinkpad T530 keyboard backlight
operation
Status in linux package in Ubuntu:
Confirmed
Bug description:
Using kernel 3.19.0-66-generic the keyboard backlight and screen-top
illuminator work.
However, after upgrading to kernel 4.4 the keyboard backlight and
screen-top illuminator come on without hitting the special keys. When
it returns from screen saver when I hit the return key these lights
come on also.
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ApportVersion: 2.14.1-0ubuntu3.21
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: painter 3092 F.... pulseaudio
DistroRelease: Ubuntu 14.04
HibernationDevice: RESUME=UUID=05f2d9dc-173d-41bc-8332-7d0a6e7394fa
InstallationDate: Installed on 2014-11-23 (741 days ago)
InstallationMedia: Ubuntu-GNOME 14.04.1 LTS "Trusty Tahr" - Release amd64
(20140722.2)
MachineType: LENOVO 2359CTO
Package: linux (not installed)
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-51-generic
root=UUID=349d96ad-2412-45a5-b1d9-46eb9050bce1 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 4.4.0-51.72~14.04.1-generic 4.4.30
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-4.4.0-51-generic N/A
linux-backports-modules-4.4.0-51-generic N/A
linux-firmware 1.127.22
Tags: trusty
Uname: Linux 4.4.0-51-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
_MarkForUpload: True
dmi.bios.date: 09/10/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: G4ETA5WW (2.65 )
dmi.board.asset.tag: Not Available
dmi.board.name: 2359CTO
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:bvrG4ETA5WW(2.65):bd09/10/2015:svnLENOVO:pn2359CTO:pvrThinkPadT530:rvnLENOVO:rn2359CTO:rvrNotDefined:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 2359CTO
dmi.product.version: ThinkPad T530
dmi.sys.vendor: LENOVO
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