** Changed in: hwe-next
Status: Triaged => Fix Released
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https://bugs.launchpad.net/bugs/1359010
Title:
[HP Probook 6570b] Unable to control brightness on 12.04.5
Status in HWE Next Project:
Fix Released
Status in linux-lts-trusty package in Ubuntu:
Fix Released
Bug description:
CID: 201306-13745 HP Probook 6570b
This system was certified with 12.04.2 [1], but the brightness does not work
on 12.04.5
The brightness level indicator would change with hotkey events, but the
brightness itself does not.
Debugging information:
ubuntu@201306-13745:~$ ls /sys/class/backlight
acpi_video0 intel_backlight
ubuntu@201306-13745:~$ grep -r . /proc/acpi
/proc/acpi/battery/BAT1/alarm:present: no
/proc/acpi/battery/BAT1/state:present: no
/proc/acpi/battery/BAT1/info:present: no
/proc/acpi/battery/BAT0/alarm:alarm: unsupported
/proc/acpi/battery/BAT0/state:present: yes
/proc/acpi/battery/BAT0/state:capacity state: ok
/proc/acpi/battery/BAT0/state:charging state: charged
/proc/acpi/battery/BAT0/state:present rate: 0 mA
/proc/acpi/battery/BAT0/state:remaining capacity: 4907 mAh
/proc/acpi/battery/BAT0/state:present voltage: 12435 mV
/proc/acpi/battery/BAT0/info:present: yes
/proc/acpi/battery/BAT0/info:design capacity: 4932 mAh
/proc/acpi/battery/BAT0/info:last full capacity: 4932 mAh
/proc/acpi/battery/BAT0/info:battery technology: rechargeable
/proc/acpi/battery/BAT0/info:design voltage: 10800 mV
/proc/acpi/battery/BAT0/info:design capacity warning: 200 mAh
/proc/acpi/battery/BAT0/info:design capacity low: 100 mAh
/proc/acpi/battery/BAT0/info:cycle count: 0
/proc/acpi/battery/BAT0/info:capacity granularity 1: 100 mAh
/proc/acpi/battery/BAT0/info:capacity granularity 2: 100 mAh
/proc/acpi/battery/BAT0/info:model number: Primary
/proc/acpi/battery/BAT0/info:serial number: 59312 2013/03/07
/proc/acpi/battery/BAT0/info:battery type: LIon
/proc/acpi/battery/BAT0/info:OEM info: Hewlett-Packard
/proc/acpi/button/lid/LID/state:state: open
/proc/acpi/wakeup:Device S-state Status Sysfs node
/proc/acpi/wakeup:LANC S5 *enabled pci:0000:00:19.0
/proc/acpi/wakeup:EHC1 S0 *enabled pci:0000:00:1d.0
/proc/acpi/wakeup:EHC2 S0 *enabled pci:0000:00:1a.0
/proc/acpi/wakeup:XHC S0 *enabled pci:0000:00:14.0
/proc/acpi/wakeup:PCIB S5 *disabled
/proc/acpi/wakeup:RP02 S4 *disabled pci:0000:00:1c.1
/proc/acpi/wakeup:ECF0 S4 *disabled
/proc/acpi/wakeup:RP03 S4 *disabled pci:0000:00:1c.2
/proc/acpi/wakeup:RP04 S5 *disabled pci:0000:00:1c.3
/proc/acpi/wakeup:WNIC S5 *disabled pci:0000:24:00.0
ubuntu@201306-13745:~$ dmesg | grep 'ACPI: Video'
[ 9.589102] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no)
ubuntu@201306-13745:~$
[1] http://www.ubuntu.com/certification/hardware/201306-13745/
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.13.0-34-generic 3.13.0-34.60~precise1
ProcVersionSignature: Ubuntu 3.13.0-34.60~precise1-generic 3.13.11.4
Uname: Linux 3.13.0-34-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version
k3.13.0-34-generic.
ApportVersion: 2.0.1-0ubuntu17.7
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: ubuntu 1919 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xd4730000 irq 49'
Mixer name : 'Intel PantherPoint HDMI'
Components : 'HDA:111d7605,103c17b7,00100107
HDA:80862806,80860101,00100000'
Controls : 53
Simple ctrls : 18
Date: Tue Aug 19 22:32:50 2014
HibernationDevice: RESUME=UUID=40b3ec1e-30dd-4f84-97d0-50cc592094bd
InstallationMedia: Ubuntu 12.04.5 LTS "Precise Pangolin" - Release amd64
(20140807.1)
MachineType: Hewlett-Packard HP ProBook 6570b
MarkForUpload: True
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-34-generic
root=UUID=3a68144b-91cb-46a6-9be4-cec8c83f33d7 ro quiet splash initcall_debug
vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.13.0-34-generic N/A
linux-backports-modules-3.13.0-34-generic N/A
linux-firmware 1.79.16
SourcePackage: linux-lts-trusty
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/31/2013
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68ICE Ver. F.40
dmi.board.name: 17AB
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 42.32
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias:
dmi:bvnHewlett-Packard:bvr68ICEVer.F.40:bd01/31/2013:svnHewlett-Packard:pnHPProBook6570b:pvrA1029D1102:rvnHewlett-Packard:rn17AB:rvrKBCVersion42.32:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP ProBook 6570b
dmi.product.version: A1029D1102
dmi.sys.vendor: Hewlett-Packard
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