ASUS M51SN dim

[Paolo4500]

asus-laptop kernel Module PROBLEM!
I have an asus m51sn laptop with dual system VISTA/UBUNTU boot..
When i power off Vista, i reboot in Ubuntu, after 4/5 sec, LCD
brightness go down (very dim).
I can go up with LCD brightness using Fn-F6 keys, but every time i
reboot, it reset...
 is it the problem the light sensor maybe?
This problem is present in Ubuntu 8.10 Kernel: Linux 2.6.27-14-generic(i686) and in ubuntu 9.04

infos

Asus Laptop Support 0.42
Model reference : M51Sn
SFUN value : 0xa08f7
DSDT length : 45942
DSDT checksum : 201
DSDT revision : 1
OEM id : M5Sn4
OEM table id : M5Sn4203
OEM revision : 0x203
ASL comp vendor id : INTL
ASL comp revision : 0x20051117

[Fabio Marconi (fabiomarconi)]

Thank you for taking the time to report this bug and helping to make Ubuntu better.
Is this bug reproducible with the latest Lucid or Maverick packages ?
Tanks in advance.

[Fabio Marconi (fabiomarconi)]

 Thank you for taking the time to report this bug and helping to make Ubuntu better. This bug did not have a package associated with it, which is important for ensuring that it gets looked at by the proper developers. You can learn more about finding the right package at https://wiki.ubuntu.com/Bugs/FindRightPackage .

When reporting bugs in the future please use apport by using 'ubuntu-bug' and the name of the package affected. You can learn more about this functionality at https://help.ubuntu.com/community/ReportingBugs.

[Fabio Marconi (fabiomarconi)]

We'd like to figure out what's causing this bug for you, but we haven't heard back from you in a while. Could you please provide the requested information? Thanks!

[Fabio Marconi (fabiomarconi)]

We are closing this bug report because it lacks the information we need to investigate the problem, as described in the previous comments. Please reopen it if you can give us the missing information, and don't hesitate to submit bug reports in the future. To reopen the bug report you can click on the current status, under the Status column, and change the Status back to "New". Thanks again!