Brightness issue on lucid lynx

[Haseeb ul Hasan]

Hiya, my name is Hasan

I have a Compaq presario V6700 notebook and the bug is that the brightness
keys (fn+f6/7) dont work. Following are the things that i have tried...
Using Lucid Lynx

first off, i searched the known bugs on the website and i found out some
solutions which didnt work on my pc... i even did this:

mhasan at mhasan-laptop:~$ lshal | grep system.hardware
  system.hardware.primary_video.product = 10754  (0x2a02)  (int)
  system.hardware.primary_video.vendor = 32902  (0x8086)  (int)
  system.hardware.product = 'Presario V6700 Notebook PC'  (string)
  system.hardware.serial = 'CNF80449S1'  (string)
  system.hardware.uuid = '434E4638-3034-3439-5331-001E6804EA99'  (string)
  system.hardware.vendor = 'Hewlett-Packard'  (string)
  system.hardware.version = 'Rev 1'  (string)


then i went into

mhasan at mhasan-laptop:/usr/share/hal/fdi/information/10freedesktop$

did this

mhasan at mhasan-laptop:/usr/share/hal/fdi/information/10freedesktop$ sudo su
root at mhasan-laptop:/usr/share/hal/fdi/information/10freedesktop# gedit
10-laptop-panel-hardware.fdi

and changed the following line:

<match key="/org/freedesktop/Hal/devices/computer:system.hardware.product"
contains_outof="4410s;4415s;4416s;Compaq 5X5">
  <!-- needed since the acpi video module reports it handle the events, but
it don't work on this machines-->
          <merge key="laptop_panel.brightness_in_hardware"
type="bool">false</merge>
        </match>

and inserted the model no. appeared in lshal 'Presario V6700 Notebook PC'
above and the line went like this:

<match key="/org/freedesktop/Hal/devices/computer:system.hardware.product"
contains_outof="V6700;4410s;4415s;4416s;Compaq 5X5">

rebooted and it didnt work.....

have also tried:
<match key="/org/freedesktop/Hal/devices/computer:system.hardware.product"
contains_outof="Presario V6700 Notebook PC;4410s;4415s;4416s;Compaq 5X5">

and also tried these combinations.....

<match key="/org/freedesktop/Hal/devices/computer:system.hardware.product"
contains_outof="Presario V6700;4410s;4415s;4416s;Compaq 5X5">

<match key="/org/freedesktop/Hal/devices/computer:system.hardware.product"
contains_outof="V6700 Notebook PC;4410s;4415s;4416s;Compaq 5X5">

<match key="/org/freedesktop/Hal/devices/computer:system.hardware.product"
contains_outof="Presario V6700 Notebook PC;4410s;4415s;4416s;Compaq 5X5">


rebooted each time i edited something but it dodnt work as it did in the
attached post.....

then i tried something else... where you determine if the system is
detecting key presses.... turns out my system is not detecting a key press
event which is "fn+F6" or "fn+F7" .... i think this is the main issue
here..... what can i do to fix that......???
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