Ubuntu
linux package

Screen brightness setting has no affect on HP ProBook 6560b

Bug #990326 reported by Sami Pietila on 2012-04-28

This bug affects 7 people

Affects		Status	Importance	Assigned to	Milestone
	linux (Ubuntu)	Fix Released	Medium	Unassigned

Bug Description

When trying to set screen brightness I can see the brightness indicator moving, but screen brightness does not change. The brightness is always full (slightly too bright for me). I have ubuntu 12.04 and HP Probook 6560b.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: xserver-xorg 1:7.6+12ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
Uname: Linux 3.2.0-24-generic x86_64
.tmp.unity.support.test.0:

ApportVersion: 2.0.1-0ubuntu6
Architecture: amd64
CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell]
CompositorRunning: None
Date: Sat Apr 28 10:06:36 2012
DistUpgraded: Fresh install
DistroCodename: precise
DistroVariant: ubuntu
DkmsStatus:
virtualbox, 4.1.12, 3.2.0-22-generic, x86_64: installed
virtualbox, 4.1.12, 3.2.0-23-generic, x86_64: installed
virtualbox, 4.1.12, 3.2.0-24-generic, x86_64: installed
ExtraDebuggingInterest: No
GraphicsCard:
Advanced Micro Devices [AMD] nee ATI Seymour [Radeon HD 6400M Series] [1002:6760] (prog-if 00 [VGA controller])
Subsystem: Hewlett-Packard Company Device [103c:161b]
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120308)
MachineType: Hewlett-Packard HP ProBook 6560b
ProcEnviron:
TERM=xterm
PATH=(custom, user)
LANG=fi_FI.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic root=UUID=7f1ce391-a03b-40f2-8a0a-b85be2505231 ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/22/2011
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: 68SCE Ver. F.22
dmi.board.name: 1619
dmi.board.vendor: Hewlett-Packard
dmi.board.version: KBC Version 97.4A
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.modalias: dmi:bvnHewlett-Packard:bvr68SCEVer.F.22:bd12/22/2011:svnHewlett-Packard:pnHPProBook6560b:pvrA0001D02:rvnHewlett-Packard:rn1619:rvrKBCVersion97.4A:cvnHewlett-Packard:ct10:cvr:
dmi.product.name: HP ProBook 6560b
dmi.product.version: A0001D02
dmi.sys.vendor: Hewlett-Packard
version.compiz: compiz 1:0.9.7.6-0ubuntu2
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.32-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.2-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.2-0ubuntu3
version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2

Tags:

Revision history for this message

Sami Pietila (sampie) wrote on 2012-04-28:

BootDmesg.txt Edit (68.0 KiB, text/plain; charset="utf-8")
BootLog.gz Edit (556 bytes, application/x-gzip)
CurrentDmesg.txt Edit (35.6 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (4.0 KiB, text/plain; charset="utf-8")
DpkgLog.txt Edit (1.3 MiB, text/plain; charset="utf-8")
GconfCompiz.txt Edit (27.9 KiB, text/plain; charset="utf-8")
Lspci.txt Edit (12.7 KiB, text/plain; charset="utf-8")
Lsusb.txt Edit (504 bytes, text/plain; charset="utf-8")
MonitorsUser.xml.txt Edit (711 bytes, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (3.6 KiB, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (2.6 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (3.5 KiB, text/plain; charset="utf-8")
UdevDb.txt Edit (134.5 KiB, text/plain; charset="utf-8")
UdevLog.txt Edit (310.1 KiB, text/plain; charset="utf-8")
UnitySupportTest.txt Edit (571 bytes, text/plain; charset="utf-8")
XorgLog.txt Edit (45.3 KiB, text/plain; charset="utf-8")
XorgLogOld.txt Edit (46.6 KiB, text/plain; charset="utf-8")
Xrandr.txt Edit (4.9 KiB, text/plain; charset="utf-8")
xdpyinfo.txt Edit (24.9 KiB, text/plain; charset="utf-8")

Ubuntu Foundations Team Bug Bot (crichton) on 2012-04-28

affects:

ubuntu → xorg (Ubuntu)

Bryce Harrington (bryce) on 2012-04-29

affects:

xorg (Ubuntu) → gnome-power-manager (Ubuntu)

Revision history for this message

Launchpad Janitor (janitor) wrote on 2012-05-03:

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in gnome-power-manager (Ubuntu):
status:	New → Confirmed

Revision history for this message

Sami Pietila (sampie) wrote on 2012-05-08:

Any workaround to set screen less bright?

Revision history for this message

Atheg (hoganaj) wrote on 2012-05-22:

effect.

Revision history for this message

Malte S. Stretz (mss) wrote on 2012-05-28:

This isn't a bug in gnome-power-manager since it affects KDE as well. Actually, it looks like the kernel (?) ignores whatever is written to /sys/class/backlight/acpi_video0/brightness; I can set it to zero and still no change:

$ ls /sys/class/backlight/
acpi_video0
$ cat /sys/class/backlight/acpi_video0/max_brightness
20
$ cat /sys/class/backlight/acpi_video0/brightness
20
$ echo 0 | sudo tee /sys/class/backlight/acpi_video0/brightness
0
$ cat /sys/class/backlight/acpi_video0/brightness
0

summary:	- Screen brightness setting has no affect + Screen brightness setting has no affect on HP ProBook 6560b
affects:	gnome-power-manager (Ubuntu) → linux (Ubuntu)

Revision history for this message

Malte S. Stretz (mss) wrote on 2012-05-28:

Download full text (10.0 KiB)

I tried to boot with acpi_backlight=vendor which didn't help; now there aren'd any backlights registered in /sys/class/backlight at all.

This is an HP ProBook 6560b as well:

$ lspci -v
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
        Subsystem: Hewlett-Packard Company Device 1619
        Flags: bus master, fast devsel, latency 0
        Capabilities: <access denied>

00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) (prog-if 00 [Normal decode])
        Flags: bus master, fast devsel, latency 0
        Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
        I/O behind bridge: 00002000-00002fff
        Memory behind bridge: d0300000-d03fffff
        Prefetchable memory behind bridge: 00000000c0000000-00000000cfffffff
        Capabilities: <access denied>
        Kernel driver in use: pcieport
        Kernel modules: shpchp

00:19.0 Ethernet controller: Intel Corporation 82579V Gigabit Network Connection (rev 04)
        Subsystem: Hewlett-Packard Company Device 1619
        Flags: bus master, fast devsel, latency 0, IRQ 46
        Memory at d0400000 (32-bit, non-prefetchable) [size=128K]
        Memory at d042a000 (32-bit, non-prefetchable) [size=4K]
        I/O ports at 3020 [size=32]
...

I tried to boot with acpi_backlight=vendor which didn't help; now there aren'd any backlights registered in /sys/class/backlight at all.

This is an HP ProBook 6560b as well:

00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
        Subsystem: Hewlett-Packard Company Device 1619
        Flags: bus master, fast devsel, latency 0, IRQ 48
        Memory at d0424000 (64-bit, non-prefetchable) [size=16]
        Capabilities: <access denied>                                                                                                                                                           
        Kernel driver in use: mei                                                                                                                                                               
        Kernel modules: mei                                                                                                                                                                     
                                                                                                                                                                                                
00:19.0 Ethernet controller: Intel Corporation 82579V Gigabit Network Connection (rev 04)                                                                                                       
        Subsystem: Hewlett-Packard Company Device 1619                                                                                                                                          
        Flags: bus master, fast devsel, latency 0, IRQ 46                                                                                                                                       
        Memory at d0400000 (32-bit, non-prefetchable) [size=128K]                                                                                                                               
        Memory at d042a000 (32-bit, non-prefetchable) [size=4K]                                                                                                                                 
        I/O ports at 3020 [size=32]                                                                                                                                                             
        Capabilities: <access denied>                                                                                                                                                           
        Kernel driver in use: e1000e                                                                                                                                                            
        Kernel modules: e1000e                                                                                                                                                                  
                                                                                                                                                                                                
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 04) (prog-if 20 [EHCI])                                                      
        Subsystem: Hewlett-Packard Company Device 1619                                                                                                                                          
        Flags: bus master, medium devsel, latency 0, IRQ 16                                                                                                                                     
        Memory at d0429000 (32-bit, non-prefetchable) [size=1K]                                                                                                                                 
        Capabilities: <access denied>                                                                                                                                                           
        Kernel driver in use: ehci_hcd

00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04)
        Subsystem: Hewlett-Packard Company Device 1619
        Flags: bus master, fast devsel, latency 0, IRQ 49
        Memory at d0420000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: <access denied>
        Kernel driver in use: snd_hda_intel
        Kernel modules: snd-hda-intel

00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b4) (prog-if 00 [Normal decode])
        Flags: bus master, fast devsel, latency 0
        Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
        Memory behind bridge: d0200000-d02fffff
        Capabilities: <access denied>
        Kernel driver in use: pcieport
        Kernel modules: shpchp

00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 3 (rev b4) (prog-if 00 [Normal decode])
        Flags: bus master, fast devsel, latency 0
        Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
        Memory behind bridge: d0100000-d01fffff
        Prefetchable memory behind bridge: 00000000d0600000-00000000d06fffff
        Capabilities: <access denied>
        Kernel driver in use: pcieport
        Kernel modules: shpchp

00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b4) (prog-if 00 [Normal decode])
        Flags: bus master, fast devsel, latency 0
        Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
        Memory behind bridge: d0000000-d00fffff
        Capabilities: <access denied>
        Kernel driver in use: pcieport
        Kernel modules: shpchp

00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 04) (prog-if 20 [EHCI])
        Subsystem: Hewlett-Packard Company Device 1619
        Flags: bus master, medium devsel, latency 0, IRQ 16
        Memory at d0428000 (32-bit, non-prefetchable) [size=1K]
        Capabilities: <access denied>
        Kernel driver in use: ehci_hcd

00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC Controller (rev 04)
        Subsystem: Hewlett-Packard Company Device 1619
        Flags: bus master, medium devsel, latency 0
        Capabilities: <access denied>
        Kernel modules: iTCO_wdt

00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 04) (prog-if 01 [AHCI 1.0])
        Subsystem: Hewlett-Packard Company Device 1619
        Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 45
        I/O ports at 3048 [size=8]
        I/O ports at 3054 [size=4]
        I/O ports at 3040 [size=8]
        I/O ports at 3050 [size=4]
        I/O ports at 3000 [size=32]
        Memory at d0427000 (32-bit, non-prefetchable) [size=2K]
        Capabilities: <access denied>
        Kernel driver in use: ahci

01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Seymour [Radeon HD 6400M Series] (prog-if 00 [VGA controller])
        Subsystem: Hewlett-Packard Company Device 161b
        Flags: bus master, fast devsel, latency 0, IRQ 47
        Memory at c0000000 (64-bit, prefetchable) [size=256M]
        Memory at d0300000 (64-bit, non-prefetchable) [size=128K]
        I/O ports at 2000 [size=256]
        Expansion ROM at d0340000 [disabled] [size=128K]
        Capabilities: <access denied>
        Kernel driver in use: radeon
        Kernel modules: radeon

01:00.1 Audio device: Advanced Micro Devices [AMD] nee ATI Caicos HDMI Audio [Radeon HD 6400 Series]
        Subsystem: Hewlett-Packard Company Device 161b
        Flags: bus master, fast devsel, latency 0, IRQ 50
        Memory at d0320000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: <access denied>
        Kernel driver in use: snd_hda_intel
        Kernel modules: snd-hda-intel

03:00.0 System peripheral: JMicron Technology Corp. SD/MMC Host Controller (rev 30)
        Subsystem: Hewlett-Packard Company Device 1619
        Flags: bus master, fast devsel, latency 0, IRQ 18
        Memory at d0104000 (32-bit, non-prefetchable) [size=256]
        Expansion ROM at d0600000 [disabled] [size=64K]
        Capabilities: <access denied>
        Kernel driver in use: sdhci-pci
        Kernel modules: sdhci-pci

03:00.2 SD Host controller: JMicron Technology Corp. Standard SD Host Controller (rev 30) (prog-if 01)
        Subsystem: Hewlett-Packard Company Device 1619
        Flags: fast devsel, IRQ 18
        Memory at d0103000 (32-bit, non-prefetchable) [size=256]
        Capabilities: <access denied>
        Kernel modules: sdhci-pci

04:00.0 Network controller: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller (rev 01)
        Subsystem: Hewlett-Packard Company Device 145c
        Flags: bus master, fast devsel, latency 0, IRQ 19
        Memory at d0000000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: <access denied>
        Kernel driver in use: brcmsmac
        Kernel modules: bcma, brcmsmac

Revision history for this message

Malte S. Stretz (mss) wrote on 2012-05-28:

This is a dup of bug 951736 (I completely forgot that I reported this before).

Joseph Salisbury (jsalisbury) on 2012-05-29

Changed in linux (Ubuntu):
importance:	Undecided → Medium

Revision history for this message

penalvch (penalvch) wrote on 2013-08-22:

Sami Pietila, could you please confirm this issue exists with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ . If the issue remains, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report:

apport-collect -p linux <replace-with-bug-number>

Also, could you please test the latest upstream kernel available following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Please do not test the daily folder, but the one all the way at the bottom. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-v3.11-rc5

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results. Thank you for your understanding.

tags:	added: bios-outdated-f.42 needs-upstream-testing
Changed in linux (Ubuntu):
status:	Confirmed → Incomplete

Revision history for this message

Sami Pietila (sampie) wrote on 2013-08-22:

This bug was fixed in ubuntu 13.04.

Changed in linux (Ubuntu):
status:	Incomplete → Fix Released

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Screen brightness setting has no affect on HP ProBook 6560b

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