kernel-packages team mailing list archive

[Martin Konopka <1257766@xxxxxxxxxxxxxxxxxx>]

Yes, it is still an issue on ubuntu 13.10. (No proprietary NVidia driver
installed.) I will test the problem on the latest development version of
ubuntu.

The issue is worse than you might expect. I often need to read and edit
documents and those use a white background (typically PDF documents).
The brightness is so high that it turns the notebook almost unusable for
me.

Please note that the HP ZBook series is rather new (selling started
about September 2013) and this might be the reason why not so many
people complain about the brightness bug. Nevertheless, the other user
confirmed the issue very recently (25th December).

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https://bugs.launchpad.net/bugs/1257766

Title:
  can not reduce brightness on HP ZBook

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  machine: HP ZBook 15
  (Intel Core i7 4700MQ Haswell, NVIDIA Quadro K1100M 2GB, 1920 x 1080 display)

  I go to the settings/Brightness & Lock section.
  The button which should controll the screen brightness is on the right-hand side.
  I move it to the left-hand side but nothing happens. The screen brightness remains to be 100% (too much for me).
  The machine is running on the AC power cable.

  The machine uses an intel graphics driver.

  It contains also the NVidia card but that one is apparently inactive
  and the system did not offer me to install it.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: xserver-xorg-video-intel 2:2.99.904-0ubuntu2
  ProcVersionSignature: Ubuntu 3.11.0-14.21-generic 3.11.7
  Uname: Linux 3.11.0-14-generic x86_64
  .tmp.unity.support.test.0:
   
  ApportVersion: 2.12.5-0ubuntu2.1
  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
  Date: Wed Dec  4 15:32:39 2013
  DistUpgraded: Fresh install
  DistroCodename: saucy
  DistroVariant: ubuntu
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation 4th Gen Core Processor Integrated Graphics Controller [8086:0416] (rev 06) (prog-if 00 [VGA controller])
     Subsystem: Hewlett-Packard Company Device [103c:1909]
   NVIDIA Corporation GK107GLM [Quadro K1100M] [10de:0ff6] (rev a1) (prog-if 00 [VGA controller])
     Subsystem: Hewlett-Packard Company Device [103c:1909]
  InstallationDate: Installed on 2013-12-04 (0 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016.1)
  MachineType: Hewlett-Packard HP ZBook 15
  MarkForUpload: True
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-14-generic root=UUID=b1bd90e2-af55-4f94-a86e-ec16ca8b47e4 ro quiet splash vt.handoff=7
  SourcePackage: xserver-xorg-video-intel
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 10/25/2013
  dmi.bios.vendor: Hewlett-Packard
  dmi.bios.version: L70 Ver. 01.06
  dmi.board.name: 1909
  dmi.board.vendor: Hewlett-Packard
  dmi.board.version: KBC Version 94.47
  dmi.chassis.type: 10
  dmi.chassis.vendor: Hewlett-Packard
  dmi.modalias: dmi:bvnHewlett-Packard:bvrL70Ver.01.06:bd10/25/2013:svnHewlett-Packard:pnHPZBook15:pvrA3009DD10303:rvnHewlett-Packard:rn1909:rvrKBCVersion94.47:cvnHewlett-Packard:ct10:cvr:
  dmi.product.name: HP ZBook 15
  dmi.product.version: A3009DD10303
  dmi.sys.vendor: Hewlett-Packard
  version.compiz: compiz 1:0.9.10+13.10.20131011-0ubuntu1
  version.ia32-libs: ia32-libs N/A
  version.libdrm2: libdrm2 2.4.46-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 9.2.1-1ubuntu3
  version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
  version.libgl1-mesa-glx: libgl1-mesa-glx 9.2.1-1ubuntu3
  version.xserver-xorg-core: xserver-xorg-core 2:1.14.3-3ubuntu2
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu3.1
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.0-0ubuntu10
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.904-0ubuntu2
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.9-2ubuntu1
  xserver.bootTime: Wed Dec  4 15:18:15 2013
  xserver.configfile: default
  xserver.errors:
   Failed to load module "nvidia" (module does not exist, 0)
   Failed to load module "nvidia" (module does not exist, 0)
   NOUVEAU(G0): [XvMC] Failed to initialize extension.
  xserver.logfile: /var/log/Xorg.0.log
  xserver.outputs:
   product id                                4589 
   vendor                                     AUO
  xserver.version: 2:1.14.3-3ubuntu2

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