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[Swâmi Petaramesh <971750@xxxxxxxxxxxxxxxxxx>]

This bug is 1 year and a half old, and it's extremely clear to me that
nobody has been addressing this except for "administrative processing".

Administrative processing that typically puts all the burden on the bug
reporter, asking him every 6 months to "test the latest dev kernel"
while nobody else is doing nothing. Business as usual.

I'm not going to test dev kernels for years while nobody else does
nothing for every bug I report.

I'm going to cease reporting Ubuntu bugs, and quit using Ubuntu as well
- which is already partially done, as more than half of my machines have
already migrated to other, non-Ubuntu based, distros.

Bye.

-- 
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https://bugs.launchpad.net/bugs/971750

Title:
  [Toshiba L735-101] screen brightness cannot be set

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  On my Toshiba L735-101, using btrfs, screen brightness keys do not
  allow screen brightness to be set. Actual brightness is always maximum
  (i.e. much too bright...).

  If I boot "normally" , screen brightness keys have no effect at all.

  If I boot adding the "acpi_backlight=vendor" option, then the
  brighness hotkeys cause the corresponding pop-up  level bar to display
  (modulo bug #971734), still there is no change on actual screen
  brightness.

  Video board is :
  [    74.130] (II) NVIDIA(0): NVIDIA GPU GeForce 315M (GT218) at PCI:1:0:0 (GPU-0)

  Boot dmesg shows some funny stuff :
  [    3.346332] [Firmware Bug]: ACPI(VGA) defines _DOD but not _DOS

  Putting the following in /etc/X11/xorg.conf does not help:
  Option	"RegistryDwords"	"EnableBrightnessControl=1"

  # ll /sys/class/backlight/toshiba/
  total 0
  drwxr-xr-x 3 root root    0 avril  2 19:20 ./
  drwxr-xr-x 3 root root    0 avril  2 19:20 ../
  -r--r--r-- 1 root root 4096 avril  2 19:47 actual_brightness
  -rw-r--r-- 1 root root 4096 avril  2 19:47 bl_power
  -rw-r--r-- 1 root root 4096 avril  2 19:23 brightness
  lrwxrwxrwx 1 root root    0 avril  2 19:47 device -> ../../../TOS1900:00/
  -r--r--r-- 1 root root 4096 avril  2 19:23 max_brightness
  drwxr-xr-x 2 root root    0 avril  2 19:47 power/
  lrwxrwxrwx 1 root root    0 avril  2 19:20 subsystem -> ../../../../../../class/backlight/
  -r--r--r-- 1 root root 4096 avril  2 19:23 type
  -rw-r--r-- 1 root root 4096 avril  2 19:20 uevent

  => Using the brightness hotkeys cause the value of "brightness" to
  change here (only if booted with "acpi_backlight=vendor"), but the
  value of "actual_brightness" doesn't change (nor the screen actual
  brigthness...)

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: linux-image-3.2.0-21-generic 3.2.0-21.34
  ProcVersionSignature: Ubuntu 3.2.0-21.34-generic 3.2.13
  Uname: Linux 3.2.0-21-generic i686
  NonfreeKernelModules: nvidia
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0-0ubuntu2
  Architecture: i386
  CheckboxSubmission: 1ea6109db29b53f721a523a77b7f3abf
  CheckboxSystem: d00f84de8a555815fa1c4660280da308
  Date: Mon Apr  2 19:39:09 2012
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=0e7ded16-c4fc-4f81-8562-3cb1196809d3
  InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
  MachineType: TOSHIBA SATELLITE L735
  ProcEnviron:
   LANGUAGE=fr_FR:fr:en_US:en
   TERM=xterm
   PATH=(custom, user)
   LANG=fr_FR.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-21-generic root=/dev/mapper/VG1-UBUNTU ro rdblacklist=nouveau nouveau.blacklist=1 acpi_backlight=vendor clocksource=hpet rdblacklist=nouveau nouveau.blacklist=1 acpi_backlight=vendor quiet splash vt.handoff=7
  SourcePackage: linux
  StagingDrivers: rts5139 mei
  UpgradeStatus: Upgraded to precise on 2012-03-10 (23 days ago)
  dmi.bios.date: 02/10/2012
  dmi.bios.vendor: INSYDE
  dmi.bios.version: 2.20
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: Base Board Product Name
  dmi.board.vendor: Intel Corp.
  dmi.board.version: Base Board Version
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: OEM Chassis Manufacturer
  dmi.chassis.version: OEM Chassis Version
  dmi.modalias: dmi:bvnINSYDE:bvr2.20:bd02/10/2012:svnTOSHIBA:pnSATELLITEL735:pvrPSK0CE-00900LFR:rvnIntelCorp.:rnBaseBoardProductName:rvrBaseBoardVersion:cvnOEMChassisManufacturer:ct10:cvrOEMChassisVersion:
  dmi.product.name: SATELLITE L735
  dmi.product.version: PSK0CE-00900LFR
  dmi.sys.vendor: TOSHIBA
  ---
  ApportVersion: 2.5.1-0ubuntu2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  michel     3640 F.... pulseaudio
   /dev/snd/controlC0:  michel     3640 F.... pulseaudio
  CRDA:
   country FR:
    (2402 - 2482 @ 40), (N/A, 20)
    (5170 - 5250 @ 40), (N/A, 20)
    (5250 - 5330 @ 40), (N/A, 20), DFS
    (5490 - 5710 @ 40), (N/A, 27), DFS
  CheckboxSubmission: 1ea6109db29b53f721a523a77b7f3abf
  CheckboxSystem: d00f84de8a555815fa1c4660280da308
  DistroRelease: Ubuntu 12.10
  EcryptfsInUse: Yes
  HibernationDevice: RESUME=UUID=b49c11a6-09a7-4da7-9efa-500df0c9d257
  MachineType: TOSHIBA SATELLITE L735
  NonfreeKernelModules: nvidia
  Package: linux (not installed)
  ProcFB: 0 VESA VGA
  ProcKernelCmdLine: BOOT_IMAGE=/UBUNTU/@boot/vmlinuz-3.5.0-12-generic root=/dev/mapper/VG1-BTR_POOL ro rootflags=subvol=UBUNTU/@ rdblacklist=nouveau nouveau.blacklist=1 acpi_osi=Linux acpi_backlight=vendor quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.5.0-12.12-generic 3.5.2
  PulseList:
   Error: command ['pacmd', 'list'] failed with exit code 1: Home directory /home/michel not ours.
   No PulseAudio daemon running, or not running as session daemon.
  RelatedPackageVersions:
   linux-restricted-modules-3.5.0-12-generic N/A
   linux-backports-modules-3.5.0-12-generic  N/A
   linux-firmware                            1.90
  StagingDrivers: rts5139
  Tags:  quantal staging
  Uname: Linux 3.5.0-12-generic x86_64
  UpgradeStatus: Upgraded to quantal on 2012-08-28 (0 days ago)
  UserGroups:

  dmi.bios.date: 06/26/2012
  dmi.bios.vendor: INSYDE
  dmi.bios.version: 2.50
  dmi.board.asset.tag: Base Board Asset Tag
  dmi.board.name: Base Board Product Name
  dmi.board.vendor: Intel Corp.
  dmi.board.version: Base Board Version
  dmi.chassis.asset.tag: No Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: OEM Chassis Manufacturer
  dmi.chassis.version: OEM Chassis Version
  dmi.modalias: dmi:bvnINSYDE:bvr2.50:bd06/26/2012:svnTOSHIBA:pnSATELLITEL735:pvrPSK0CE-00900LFR:rvnIntelCorp.:rnBaseBoardProductName:rvrBaseBoardVersion:cvnOEMChassisManufacturer:ct10:cvrOEMChassisVersion:
  dmi.product.name: SATELLITE L735
  dmi.product.version: PSK0CE-00900LFR
  dmi.sys.vendor: TOSHIBA~

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