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[Mario <828296@xxxxxxxxxxxxxxxxxx>]

same problem on Olivetti Olibook S1530

Intel HD 3000

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https://bugs.launchpad.net/bugs/828296

Title:
  [Latitude E6220/E6420] Brightness hotkeys are sluggish

Status in “linux” package in Ubuntu:
  Invalid

Bug description:
  Changing the brightness using the brightness hotkeys results in a very
  slow change. Both the OSD message and the brightness levels take much
  longer to work then other system's instantaneous changes.

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: linux-image-3.0.0-8-generic-pae 3.0.0-8.11
  ProcVersionSignature: Ubuntu 3.0.0-8.11-generic-pae 3.0.1
  Uname: Linux 3.0.0-8-generic-pae i686
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  Architecture: i386
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: STAC92xx Analog [STAC92xx Analog]
     Subdevices: 0/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ubuntu     1108 F.... pulseaudio
   /dev/snd/pcmC0D0c:   ubuntu     1108 F...m pulseaudio
   /dev/snd/pcmC0D0p:   ubuntu     1108 F...m pulseaudio
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0x3ec60000 irq 43'
     Mixer name	: 'Intel CougarPoint HDMI'
     Components	: 'HDA:111d76e7,102804a9,00100102 HDA:80862805,80860101,00100000'
     Controls      : 27
     Simple ctrls  : 13
  Date: Wed Aug 17 15:19:23 2011
  HibernationDevice: RESUME=UUID=f1f7a9db-8b1f-4def-accf-0602b79dff18
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Alpha i386 (20110815)
  IwConfig:
   lo        no wireless extensions.
   
   eth0      no wireless extensions.
  Lsusb:
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
   Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
   Bus 002 Device 003: ID 0a5c:5800 Broadcom Corp. BCM5880 Secure Applications Processor
  MachineType: Dell Inc. Latitude E6220
  ProcEnviron:
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-8-generic-pae root=UUID=2ada5b80-e85b-43e7-9758-9b86304e8048 ro quiet splash initcall_debug vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.0.0-8-generic-pae N/A
   linux-backports-modules-3.0.0-8-generic-pae  N/A
   linux-firmware                               1.59
  RfKill:
   0: dell-wifi: Wireless LAN
   	Soft blocked: no
   	Hard blocked: no
  SourcePackage: linux
  StagingDrivers: mei
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/28/2011
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: X29
  dmi.board.name: 0862D8
  dmi.board.vendor: Dell Inc.
  dmi.board.version: X00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvrX29:bd03/28/2011:svnDellInc.:pnLatitudeE6220:pvr01:rvnDellInc.:rn0862D8:rvrX00:cvnDellInc.:ct9:cvr:
  dmi.product.name: Latitude E6220
  dmi.product.version: 01
  dmi.sys.vendor: Dell Inc.

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