[Bug 1169386] Re: [keymap] Toshiba satellite A660: backlight key does not work

[KISS]

I'm running UBUNTU 12.04 LTS Live CD and the backlight doesn't work.  I
have a Toshiba A665-s6057 which normally doesnt come with a backlight
KB, but it works under Windows 7.

I have some info that might be of interest and possibly the source of
confusion.

The service manual for the A660 series shows a bit called KBLED.  It
does not, however, tell you what the bit does.

My belief is that the Satellite Logo can be turned on and off and the KB
Illumination can be turned On and Off.

It appears that when a backlit KB is detected, the illumination settings
appear in the BIOS options.

Toshiba typically does a On/Off or Timed off when you hit a key.

In Windows the touch bar at the top of the keyboard can be completely
illuminated or turned off as it is in UBUNTU,  I ran Win 7 with the
touch bar illuminated.  In windows, if you touched, say the wireless
button on the touch bar, the wireless button would go off briefly and
then return to being on again.

Dunno, if the touch bar and Function events involk the same scan code.

ECO is a mode I really never played with in Windows.

I believe the keyboard Illumination comes on briefly when the laptop is
booted from a powered down state.

I'm not in a position to check Win 7 behavior at this point in time.  If
I remember correctly the behavior of the KB can be set via the BIOS or
through a Toshiba provided control panel.  Thus there is likely more
than one bit that defines the keyboard illumination behavior.

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to systemd in Ubuntu.
https://bugs.launchpad.net/bugs/1169386

Title:
  [keymap] Toshiba satellite A660: backlight key does not work

Status in “systemd” package in Ubuntu:
  Incomplete

Bug description:
  Toshiba satellite A660 backlight just never worked on ubuntu.

  Here is an outline of some of the LEDS in a toshiba

  http://i.imgur.com/l54s5CP.jpg

  When i press Fn+Z the ubuntu keyboard LED notification shows up,
  however nothing changes.

  so i navigated to

  /sys/devices/pci0000:00/0000:00:1c.4/0000:16:00.0/firmware_node/subsystem/devices/TOS1900:00/leds/toshiba::illumination/device/leds/toshiba::illumination

  found files

  brightness device max_brightness power subsystem trigger uevent

  when i changed the value in brightness from 0 to 1

  LED 1, 2, and 3 in the above picture turns on, and led 1 turns off
  when touch bad is off.

  However there is no keyboard backlight.upon boot the backboard
  backlight works while posting and shutdown when grub loads. When i
  disable acpi the keyboard backlight works however ill lose other
  functionalities like brightness.

  Any way to fix it?

  There is also another directory.

  /sys/devices/pci0000:00/0000:00:1c.4/0000:16:00.0/firmware_node/subsystem/devices/TOS1900:00/leds/toshiba::illumination/device/leds/toshiba::illumination/subsystem/mmc0::

  with files brightness device max_brightness power subsystem trigger uevent
  nothing happens when brightness value changes.


  LSB Version:	core-2.0-amd64:core-2.0-noarch:core-3.0-amd64:core-3.0-noarch:core-3.1-amd64:core-3.1-noarch:core-3.2-amd64:core-3.2-noarch:core-4.0-amd64:core-4.0-noarch
  Distributor ID:	Ubuntu
  Description:	Ubuntu Raring Ringtail (development branch)
  Release:	13.04
  Codename:	raring
  Linux mouhanad-Satellite-A660 3.8.0-18-generic #28-Ubuntu SMP Thu Apr 11 19:38:55 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

  #Problem also exists in older version of ubuntu, new kernel in 13.04
  does not solve the problems.

   xev shows a key being pressed and being mapped to kbdbacklight. A a
  notification that keyboard is being turned on appears when Fn+Z is
  pressed. Also unlike other manufactures toshiba doesn't have
  brightness on backlit keyboards, its either on or off or a timer.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1169386/+subscriptions