[ubuntu-za] IBM R61 notebook screen dim's over time

[Michael]

Greetings

  I have weird one regarding the LCD screen on my notebook screen.
Over time, the screen brightness dim's - usually after reboots or
hibernations.

  I know that Ubuntu has a power saving function where it dim's the
backlight of the screen to save power - especially when running on
battery and it seems to visually recover when I plug power back in but
eventually the screen gets so dim I can bearly see the display.

  Thus far the only way to fix it is to boot back into M$ Vista,
shutdown and boot into Ubuntu and the screen returns to its usual
brightness only to start fading again.  I have scavenged through all
the configs and Googled but can't seem to find an option or setting to
correct this.  I have turned all screen related power saving functions
off and anything even vaguely related to no avail.

Ubuntu 8.10
IBM R61 notebook
Using a ASUS VW192T 19" external LCD screen in dual screen setup
(extended desktop)
Compiz is installed but off

michael at milegrin:~$ sudo vpddecode
# vpddecode 2.9
BIOS Build ID: 7LETB7WW
Box Serial Number: XXXXXXXX
Motherboard Serial Number: VF0YA76H1DV
Machine Type/Model: 77321EG
michael at milegrin:~$ uname -a
Linux milegrin 2.6.27-11-generic #1 SMP Thu Jan 29 19:24:39 UTC 2009
i686 GNU/Linux
michael at milegrin:~$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=8.10
DISTRIB_CODENAME=intrepid
DISTRIB_DESCRIPTION="Ubuntu 8.10"
michael at milegrin:~$

Any suggestion, tips, tricks or solutions would be appreciated.

R e g a r d s
M i c h a e l  L  G r i f f i n
michael at griffin.co.za
http://www.griffin.za.net
Fax : +27 86 670 8945
Cell : +27 83 462 0462
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He who play in root,
           eventually kill tree.