** Tags added: needs-vivid-test
** Changed in: xorg (Ubuntu)
Importance: Undecided => Low
** Changed in: xorg (Ubuntu)
Status: New => Incomplete
** Description changed:
Brightness controls are not working in Unity / Xorg. When pressing the
keys <fn><home> and <fn><end> on my Lenovo W510, I see the indicator on
the screen showing the level of brightness changing, so key mapping is
not the problem. However, the brightness is not changing.
On the kernel level, I have the single following device:
# cd /sys/class/backlight
# ls -l
total 0
lrwxrwxrwx 1 root root 0 Nov 3 17:16 acpi_video0 ->
../../devices/pci0000:00/0000:00:03.0/0000:01:00.0/backlight/acpi_video0
When playing with the <fn><home> and <fn><end>, the value of
/sys/class/backlight/brightness changes accordingly. The screen
brightness does not change.
Performing:
# echo 10 >brightness
...does not have any effect (regardless of the value provided, 10 being
just an example).
WORKAROUND
There is an odd workaround. Simply go to the console using
<CTRL><ALT><F1> and using the <fn><home> and <fn><end> keys, brightness
then changes. Return to Unity / Xorg with <CTRL><ALT><F7> and the
selected brightness persists.
NON WORKING WORKAROUND
On the web, I read that adding:
Option "RegistryDwords" "EnableBrightnessControl=1"'
in xorg.conf might fix the problem. I do not have an xorg and when I
let the proprietary Nvidia driver generate one and add this option, X
does not start anymore.
Ubuntu 14.04.1 LTS with latest updates as of this writing.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: xorg 1:7.7+1ubuntu8
ProcVersionSignature: Ubuntu 3.13.0-39.66-generic 3.13.11.8
Uname: Linux 3.13.0-39-generic x86_64
NonfreeKernelModules: nvidia
.proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory:
'/proc/driver/nvidia/gpus/0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.version:
- NVRM version: NVIDIA UNIX x86_64 Kernel Module 331.38 Wed Jan 8 19:32:30
PST 2014
- GCC version: gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1)
+ NVRM version: NVIDIA UNIX x86_64 Kernel Module 331.38 Wed Jan 8 19:32:30
PST 2014
+ GCC version: gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1)
.tmp.unity.support.test.0:
-
+
ApportVersion: 2.14.1-0ubuntu3.5
Architecture: amd64
CompizPlugins:
[core,bailer,detection,composite,opengl,compiztoolbox,decor,place,put,snap,resize,move,regex,session,vpswitch,imgpng,gnomecompat,text,ring,grid,mousepoll,animation,unitymtgrabhandles,wall,expo,ezoom,workarounds,fade,scale,unityshell]
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Tue Nov 4 07:38:59 2014
DistUpgraded: Fresh install
DistroCodename: trusty
DistroVariant: ubuntu
DkmsStatus:
- bbswitch, 0.7, 3.13.0-32-generic, x86_64: installed
- bbswitch, 0.7, 3.13.0-39-generic, x86_64: installed
- nvidia-331, 331.38, 3.13.0-32-generic, x86_64: installed
- nvidia-331, 331.38, 3.13.0-39-generic, x86_64: installed
- tp-smapi, 0.41, 3.13.0-32-generic, x86_64: installed
+ bbswitch, 0.7, 3.13.0-32-generic, x86_64: installed
+ bbswitch, 0.7, 3.13.0-39-generic, x86_64: installed
+ nvidia-331, 331.38, 3.13.0-32-generic, x86_64: installed
+ nvidia-331, 331.38, 3.13.0-39-generic, x86_64: installed
+ tp-smapi, 0.41, 3.13.0-32-generic, x86_64: installed
ExtraDebuggingInterest: Yes
GraphicsCard:
- NVIDIA Corporation GT216GLM [Quadro FX 880M] [10de:0a3c] (rev a2) (prog-if
00 [VGA controller])
- Subsystem: Lenovo Device [17aa:2145]
+ NVIDIA Corporation GT216GLM [Quadro FX 880M] [10de:0a3c] (rev a2) (prog-if
00 [VGA controller])
+ Subsystem: Lenovo Device [17aa:2145]
InstallationDate: Installed on 2014-11-01 (3 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64
(20140722.2)
MachineType: LENOVO 4318CTO
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-39-generic
root=UUID=994f9c2c-f967-472e-ace3-23cd620ec702 ro quiet splash
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 10/03/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 6NET84WW (1.45 )
dmi.board.name: 4318CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvr6NET84WW(1.45):bd10/03/2012:svnLENOVO:pn4318CTO:pvrThinkPadW510:rvnLENOVO:rn4318CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 4318CTO
dmi.product.version: ThinkPad W510
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.11.2+14.04.20140714-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.52-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.1
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.1
version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3.1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.910-0ubuntu1.1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:1.0.10-1ubuntu2
xserver.bootTime: Tue Nov 4 01:40:35 2014
xserver.configfile: default
xserver.errors: open /dev/fb0: No such file or directory
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
-
+
xserver.version: 2:1.15.1-0ubuntu2.1
- ---
- .proc.driver.nvidia.gpus.0: Error: [Errno 21] Is a directory:
u'/proc/driver/nvidia/gpus/0'
- .proc.driver.nvidia.registry: Binary: ""
- .proc.driver.nvidia.version:
- NVRM version: NVIDIA UNIX x86_64 Kernel Module 331.113 Mon Dec 1 21:08:13
PST 2014
- GCC version: gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1)
- .tmp.unity.support.test.0:
-
- ApportVersion: 2.14.1-0ubuntu3.7
- Architecture: amd64
- CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
- CompositorRunning: compiz
- CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
- CompositorUnredirectFSW: true
- CurrentDesktop: Unity
- DistUpgraded: Fresh install
- DistroCodename: trusty
- DistroRelease: Ubuntu 14.04
- DistroVariant: ubuntu
- ExtraDebuggingInterest: Yes
- GraphicsCard:
- NVIDIA Corporation GT216GLM [Quadro FX 880M] [10de:0a3c] (rev a2) (prog-if
00 [VGA controller])
- Subsystem: Lenovo Device [17aa:2145]
- InstallationDate: Installed on 2014-11-01 (116 days ago)
- InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64
(20140722.2)
- MachineType: LENOVO 4318CTO
- NonfreeKernelModules: nvidia
- Package: xorg 1:7.7+1ubuntu8.1
- PackageArchitecture: amd64
- ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-46-generic
root=UUID=994f9c2c-f967-472e-ace3-23cd620ec702 ro quiet splash
- ProcVersionSignature: Ubuntu 3.13.0-46.75-generic 3.13.11-ckt15
- Tags: trusty possible-manual-nvidia-install ubuntu compiz-0.9
- Uname: Linux 3.13.0-46-generic x86_64
- UpgradeStatus: No upgrade log present (probably fresh install)
- UserGroups: adm admin audio cdrom dip floppy libvirtd lpadmin plugdev
sambashare sambashare tape video www-data
- _MarkForUpload: True
- dmi.bios.date: 10/03/2012
- dmi.bios.vendor: LENOVO
- dmi.bios.version: 6NET84WW (1.45 )
- dmi.board.name: 4318CTO
- dmi.board.vendor: LENOVO
- dmi.board.version: Not Available
- dmi.chassis.asset.tag: No Asset Information
- dmi.chassis.type: 10
- dmi.chassis.vendor: LENOVO
- dmi.chassis.version: Not Available
- dmi.modalias:
dmi:bvnLENOVO:bvr6NET84WW(1.45):bd10/03/2012:svnLENOVO:pn4318CTO:pvrThinkPadW510:rvnLENOVO:rn4318CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
- dmi.product.name: 4318CTO
- dmi.product.version: ThinkPad W510
- dmi.sys.vendor: LENOVO
- version.compiz: compiz 1:0.9.11.3+14.04.20150122-0ubuntu1
- version.ia32-libs: ia32-libs N/A
- version.libdrm2: libdrm2 2.4.56-1~ubuntu2
- version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.3-0ubuntu0.3
- version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
- version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.3-0ubuntu0.3
- version.nvidia-graphics-drivers: nvidia-graphics-drivers N/A
- version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2.7
- version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2
- version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3.1
- version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.910-0ubuntu1.4
- version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:1.0.10-1ubuntu2
- xserver.bootTime: Wed Feb 25 03:42:14 2015
- xserver.configfile: default
- xserver.errors: open /dev/fb0: No such file or directory
- xserver.logfile: /var/log/Xorg.0.log
- xserver.outputs:
-
- xserver.version: 2:1.15.1-0ubuntu2.7
** Attachment removed: "xserver.devices.txt"
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1389215/+attachment/4327220/+files/xserver.devices.txt
** Attachment removed: "xdpyinfo.txt"
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** Attachment removed: "nvidia-settings.txt"
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** Attachment removed: "nvidia-installer.log.txt"
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** Attachment removed: "Xrandr.txt"
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** Attachment removed: "XorgLogOld.txt"
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** Attachment removed: "XorgLog.txt"
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** Attachment removed: "UnitySupportTest.txt"
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** Attachment removed: "ProcCpuinfo.txt"
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** Attachment removed: "NvidiaBugReportLog.txt"
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** Attachment removed: "Lsusb.txt"
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** Attachment removed: "LightdmLog.txt"
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** Attachment removed: "LightdmGreeterLogOld.txt"
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** Attachment removed: "LightdmDisplayLog.txt"
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** Attachment removed: "GconfCompiz.txt"
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** Attachment removed: "DpkgLog.txt"
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** Attachment removed: "DkmsStatus.txt"
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** Attachment removed: "Dependencies.txt"
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** Attachment removed: "CurrentDmesg.txt"
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** Attachment removed: "BootLog.txt"
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** Attachment removed: "BootDmesg.txt"
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** Attachment removed: ".proc.driver.nvidia.params.txt"
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You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
https://bugs.launchpad.net/bugs/1389215
Title:
Brightness controls are not working in Unity / Xorg because of Nvidia
proprietary driver.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1389215/+subscriptions
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