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[Launchpad Bug Tracker <664045@xxxxxxxxxxxxxxxxxx>]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

** Changed in: linux (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/664045

Title:
  Toshiba Satellite R630 Can't control brightness of display after
  suspend

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  I have Toshiba Satellite R630, modification of Portege R700 with embedded intel i915 video card. After resuming from suspend mode display brightness stays same as it was before suspend, but it is impossible to changed brightness by function keys or by command line. I tried to use kernel parameter acpi_backlight=vendor, also tried to use alternative kernels from Kamal Mostafa, which he created for related problem (Bug #568611), s2ram with different options. Nothing worked. One interesting effect was when using "vbetool post" - screen gone black, only deformated cursor in graphic mode, but I could change brightness by function keys. vbetool with any other options (vbestate save/restore and so on) didn't work for me.
  I use Ubuntu 10.10, previous version 10.04 had same bug.

  ProblemType: Bug
  DistroRelease: Ubuntu 10.10
  Package: xorg 1:7.5+6ubuntu3
  ProcVersionSignature: Ubuntu 2.6.32-25.44-generic 2.6.32.21+drm33.7
  Uname: Linux 2.6.32-25-generic x86_64
  NonfreeKernelModules: wl
  Architecture: amd64
  DRM.card0.DisplayPort.1:
   status: disconnected
   enabled: disabled
   dpms: Off
   modes:
   edid-base64:
  DRM.card0.HDMI_Type_A.1:
   status: disconnected
   enabled: disabled
   dpms: Off
   modes:
   edid-base64:
  DRM.card0.LVDS.1:
   status: connected
   enabled: enabled
   dpms: On
   modes: 1366x768
   edid-base64:
  DRM.card0.VGA.1:
   status: disconnected
   enabled: disabled
   dpms: Off
   modes:
   edid-base64:
  Date: Wed Oct 20 20:56:14 2010
  InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1)
  MachineType: TOSHIBA Satellite R630
  ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-25-generic root=UUID=f2fd007d-3288-4d45-abfe-f21ce856a177 ro quiet splash acpi_backlight=vendor
  ProcEnviron:
   LANG=ru_RU.utf8
   SHELL=/bin/bash
  SourcePackage: xorg
  Symptom: display
  dmi.bios.date: 06/28/2010
  dmi.bios.vendor: TOSHIBA
  dmi.bios.version: Version 1.30
  dmi.board.asset.tag: 0000000000
  dmi.board.name: Portable PC
  dmi.board.vendor: TOSHIBA
  dmi.board.version: Version A0
  dmi.chassis.asset.tag: 0000000000
  dmi.chassis.type: 10
  dmi.chassis.vendor: TOSHIBA
  dmi.chassis.version: Version 1.0
  dmi.modalias: dmi:bvnTOSHIBA:bvrVersion1.30:bd06/28/2010:svnTOSHIBA:pnSatelliteR630:pvrPT31LE-00F00URU:rvnTOSHIBA:rnPortablePC:rvrVersionA0:cvnTOSHIBA:ct10:cvrVersion1.0:
  dmi.product.name: Satellite R630
  dmi.product.version: PT31LE-00F00URU
  dmi.sys.vendor: TOSHIBA
  glxinfo: Error: [Errno 2] Нет такого файла или каталога
  system:
   distro:             Ubuntu
   codename:           maverick
   architecture:       x86_64
   kernel:             2.6.32-25-generic

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