LCD brightness adjusting

[dimafogo]

Hi all,

after I upgraded my Ubuntu installation on Dell Inpiron 1501 (6400) to v8.04 I can't smoothly adjust brightness of the screeen using hotkeys [Fn]+[Up/Down], it can be only set in one of three levels (full brightness, 50% bright, low brightness). Is it possible to add some more intermediate levels?

Regards,
Dima

[Teamgeist]

I had the same problem with my XPS m1330.
Try the following:

sudo gedit /etc/modprobe.d/blacklist

At the end add a line looking like this:

blacklist video

Then save the file and after a reboot, it should work.
Well at least it did on my machine.

Good Luck.

[dimafogo]

Teamgeist, thanks a lot, it worked on my Inspiron 1501 too!

[meborc]

thanks, worked on my 1520 as well ;)

[zeroed]

Doesn't work for me.

Bios 2.6.3

[findepi]

great thanks!
Are there any side effects? Indeed, what are we blacklisting?

[TechieAu]

great thanks!
Are there any side effects? Indeed, what are we blacklisting?

It did have a side effect for me, pretty nasty one! After disabling "video" as advised above, once I adjusted the brightness, the keyboard stopped working as well as taskbar and right-click menus.