[Bug 399587] [NEW] Brightness control does not work with Toshiba Portege M100

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Binary package hint: acpi-support

Hi!

I tried to adjust the brightness on my Toshiba Portege M100 by pressing
Fn + F6/F7. Unfortunately nothing happened.

"toshiba_acpi" is loaded and "acpi_listen" gives me the following on
pressing Fn + F6/F7:

#  acpi_listen
hkey VALD 00000000 00000140
hkey VALD 00000001 00000140
hkey VALD 00000000 00000141
hkey VALD 00000001 00000141

Running "acpid -d" gives me the following output by pressing Fn + F6/F7:

# acpid -d
acpid: received event "hkey VALD 00000000 00000140"
acpid: rule from 4077[0:0] matched
acpid: notifying client 4077[0:0]
acpid: rule from 4021[105:106] matched
acpid: notifying client 4021[105:106]
acpid: 2 total rules matched
acpid: completed event "hkey VALD 00000000 00000140"
acpid: received event "hkey VALD 00000001 00000140"
acpid: rule from 4077[0:0] matched
acpid: notifying client 4077[0:0]
acpid: rule from 4021[105:106] matched
acpid: notifying client 4021[105:106]
acpid: rule from /etc/acpi/events/tosh-video_brightnessdown matched
acpid: executing action "/etc/acpi/video_brightnessdown.sh"
BEGIN HANDLER MESSAGES
END HANDLER MESSAGES
acpid: action exited with status 0
acpid: 3 total rules matched
acpid: completed event "hkey VALD 00000001 00000140"
acpid: received event "hkey VALD 00000000 00000141"
acpid: rule from 4077[0:0] matched
acpid: notifying client 4077[0:0]
acpid: rule from 4021[105:106] matched
acpid: notifying client 4021[105:106]
acpid: 2 total rules matched
acpid: completed event "hkey VALD 00000000 00000141"
acpid: received event "hkey VALD 00000001 00000141"
acpid: rule from 4077[0:0] matched
acpid: notifying client 4077[0:0]
acpid: rule from 4021[105:106] matched
acpid: notifying client 4021[105:106]
acpid: 2 total rules matched
acpid: completed event "hkey VALD 00000001 00000141"

So my first guess was to add the keycode in "/etc/acpi/events" but my
first dry run with:

# /etc/acpi/video_brightnessdown.sh

or

# /etc/acpi/video_brightnessup.sh

had no effect.

Btw: changing the brightness with something like:

% echo 'brightness: 1' > /proc/acpi/toshiba/lcd

works but "Power Management Brightness Applet" does not get notified by
that change. In contrast changing the brightness with the applet is very
coarse. Instead of 8 brightness-levels it is only able to set three
levels (0, 3 and 7).

Nevertheless the main goal is to get the function keys running. Any
clues?

# uname -a
Linux antares 2.6.28-13-generic #45-Ubuntu SMP Tue Jun 30 19:49:51 UTC 2009 i686 GNU/Linux

# lsb_release -rd
Description:    Ubuntu 9.04
Release:        9.04

# apt-cache policy acpi-support
acpi-support:
  Installed: 0.121
  Candidate: 0.121
  Version table:
 *** 0.121 0
        500 http://at.archive.ubuntu.com jaunty/main Packages
        100 /var/lib/dpkg/status

Thank you for maintaining!

Greetings,
 - Darsha

** Affects: acpi-support (Ubuntu)
     Importance: Undecided
         Status: New

-- 
Brightness control does not work with Toshiba Portege M100
https://bugs.launchpad.net/bugs/399587
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