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[Bug 1403792] Re: brightness of one of two screens no longer adjustable with hotkeys and menu

To: dx-packages@xxxxxxxxxxxxxxxxxxx
From: Karl-Philipp Richter <krichter722@xxxxxx>
Date: Thu, 18 Dec 2014 09:29:08 -0000
Reply-to: Bug 1403792 <1403792@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
** Description changed:

  Without noticible cause the brightness of the screen of my laptop is no
  longer adjustable and stuck at the lowest level. Both the hotkey on my
  keyboard and the brightness submenu in the system settings no longer
  show any reaction to changes (i.e. key pressing and using the regulation
  bar in the menu).
  
- The issue persists after rebooting which makes the main screen of my
+ The issue persists accross reboots which makes the main screen of my
  laptop unusable and it necessary to plug in an extra monitor!
+ 
+ I had this issue on an unknown version of Ubuntu < 14.10 and the
+ installation of `indicator-brightness` (https://launchpad.net
+ /~indicator-brightness/+archive/ubuntu/ppa) and setting the brightness
+ in it once to the lowest and then to the highest level fixed the issue
+ (persistently accross reboots), but now it doesn't show any reaction
+ neither (I adjusted the package soucres to point to `trusty` after `sudo
+ add-apt-repository ppa:indicator-brightness/ppa` in order to be able to
+ install in 14.10). When the issue occured `indicator-brightness` was not
+ installed.
  
  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: unity 7.3.1+14.10.20141016-0ubuntu1
  Uname: Linux 3.17.6-031706-generic x86_64
  .tmp.unity.support.test.0:
-  
+ 
  ApportVersion: 2.14.7-0ubuntu8
  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
  CurrentDmesg: Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg -'] failed with exit code 1: comm: /var/log/dmesg: Permission denied
  Date: Thu Dec 18 10:06:33 2014
  DistUpgraded: Fresh install
  DistroCodename: utopic
  DistroVariant: ubuntu
  GraphicsCard:
-  Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
-    Subsystem: Lenovo Device [17aa:3904]
+  Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
+    Subsystem: Lenovo Device [17aa:3904]
  MachineType: LENOVO 20221
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.17.6-031706-generic root=UUID=27047ee0-b60c-4dc6-8c14-f416b264f331 ro
  SourcePackage: unity
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/12/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 71CN51WW(V1.21)
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: INVALID
  dmi.board.vendor: LENOVO
  dmi.board.version: 31900003WIN8 STD MLT
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo IdeaPad Z500 Touch
  dmi.modalias: dmi:bvnLENOVO:bvr71CN51WW(V1.21):bd07/12/2013:svnLENOVO:pn20221:pvrLenovoIdeaPadZ500Touch:rvnLENOVO:rnINVALID:rvr31900003WIN8STDMLT:cvnLENOVO:ct10:cvrLenovoIdeaPadZ500Touch:
  dmi.product.name: 20221
  dmi.product.version: Lenovo IdeaPad Z500 Touch
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.12+14.10.20140918-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.58+git20141201.f99522e6-0ubuntu0ricotz
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.0~git20141210.47aaabda-0ubuntu0ricotz~utopic
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.0~git20141210.47aaabda-0ubuntu0ricotz~utopic
  version.xserver-xorg-core: xserver-xorg-core 2:1.16.1.901-1ubuntu1~utopic1
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.99+git20140806.fbf575cb-0ubuntu0sarvatt3
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.916+git20141215.99537089-0ubuntu0sarvatt~utopic
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11+git20141030.3fb97d78-0ubuntu0sarvatt
  xserver.bootTime: Thu Dec 18 10:05:52 2014
  xserver.configfile: default
  xserver.errors:
-  
+ 
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
-  product id                                5557 
-  vendor                                     CMN
+  product id                                5557
+  vendor                                     CMN
  xserver.version: 2:1.16.1.901-1ubuntu1~utopic1

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https://bugs.launchpad.net/bugs/1403792

Title:
  brightness of one of two screens no longer adjustable with hotkeys and
  menu

Status in unity package in Ubuntu:
  New

Bug description:
  Without noticible cause the brightness of the screen of my laptop is
  no longer adjustable and stuck at the lowest level. Both the hotkey on
  my keyboard and the brightness submenu in the system settings no
  longer show any reaction to changes (i.e. key pressing and using the
  regulation bar in the menu).

  The issue persists accross reboots which makes the main screen of my
  laptop unusable and it necessary to plug in an extra monitor!

  I had this issue on an unknown version of Ubuntu < 14.10 and the
  installation of `indicator-brightness` (https://launchpad.net
  /~indicator-brightness/+archive/ubuntu/ppa) and setting the brightness
  in it once to the lowest and then to the highest level fixed the issue
  (persistently accross reboots), but now it doesn't show any reaction
  neither (I adjusted the package soucres to point to `trusty` after
  `sudo add-apt-repository ppa:indicator-brightness/ppa` in order to be
  able to install in 14.10). When the issue occured `indicator-
  brightness` was not installed.

  I could only fix the issue by rebooting and entering BIOS/EFI menu and
  using brightness hotkeys there.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: unity 7.3.1+14.10.20141016-0ubuntu1
  Uname: Linux 3.17.6-031706-generic x86_64
  .tmp.unity.support.test.0:

  ApportVersion: 2.14.7-0ubuntu8
  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
  CurrentDmesg: Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg -'] failed with exit code 1: comm: /var/log/dmesg: Permission denied
  Date: Thu Dec 18 10:06:33 2014
  DistUpgraded: Fresh install
  DistroCodename: utopic
  DistroVariant: ubuntu
  GraphicsCard:
   Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller])
     Subsystem: Lenovo Device [17aa:3904]
  MachineType: LENOVO 20221
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.17.6-031706-generic root=UUID=27047ee0-b60c-4dc6-8c14-f416b264f331 ro
  SourcePackage: unity
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 07/12/2013
  dmi.bios.vendor: LENOVO
  dmi.bios.version: 71CN51WW(V1.21)
  dmi.board.asset.tag: No Asset Tag
  dmi.board.name: INVALID
  dmi.board.vendor: LENOVO
  dmi.board.version: 31900003WIN8 STD MLT
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: Lenovo IdeaPad Z500 Touch
  dmi.modalias: dmi:bvnLENOVO:bvr71CN51WW(V1.21):bd07/12/2013:svnLENOVO:pn20221:pvrLenovoIdeaPadZ500Touch:rvnLENOVO:rnINVALID:rvr31900003WIN8STDMLT:cvnLENOVO:ct10:cvrLenovoIdeaPadZ500Touch:
  dmi.product.name: 20221
  dmi.product.version: Lenovo IdeaPad Z500 Touch
  dmi.sys.vendor: LENOVO
  version.compiz: compiz 1:0.9.12+14.10.20140918-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.58+git20141201.f99522e6-0ubuntu0ricotz
  version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.0~git20141210.47aaabda-0ubuntu0ricotz~utopic
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.0~git20141210.47aaabda-0ubuntu0ricotz~utopic
  version.xserver-xorg-core: xserver-xorg-core 2:1.16.1.901-1ubuntu1~utopic1
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.99+git20140806.fbf575cb-0ubuntu0sarvatt3
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.916+git20141215.99537089-0ubuntu0sarvatt~utopic
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11+git20141030.3fb97d78-0ubuntu0sarvatt
  xserver.bootTime: Thu Dec 18 10:05:52 2014
  xserver.configfile: default
  xserver.errors:

  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                5557
   vendor                                     CMN
  xserver.version: 2:1.16.1.901-1ubuntu1~utopic1

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References

[Bug 1403792] [NEW] brightness of one of two screens no longer adjustable with hotkeys and menu
From: Karl-Philipp Richter, 2014-12-18