HOWTO - Fix your laptops brightness function keys operating properly in 8.04 Hardy

[AaronMT]

why do we need change brightness for battery?
I almost never changed

If you never change your laptop's brightness than that means you are shortening the time you have available when away from AC power. The screen is the biggest power drain.

[dublued]

tested and working with gateway c140-x tablet pc

thank you!

[microwaver]

What I want to know for sure is, Does this work also for Gutsy GIbbon 7.10?

[shawalli]

does not work on the fujitsu T4220 Tablet

[flamelab]

Doesn't work here (laptop)

Terminal output :

flamelab@flamelab-laptop:~$ su
root@panagiotis-laptop:/home/flamelab# sh /etc/acpi/video_brightnessup.sh
grep: /proc/acpi/video/VGA/LCD/brightness: No such file or directory
/etc/acpi/video_brightnessup.sh: 35: cannot create /proc/acpi/video/VGA/LCD/brightness: Directory nonexistent
root@flamelab-laptop:/home/flamelab#

[microwaver]

There is a workaround in 7.10: just adapting the script manually.
http://ubuntuguide.org/wiki/Ubuntu:G..._splash_screen

[madjr]

another workaround is using the gnome panel brightness applet.

just add it to your panel and use the mouse wheel to make it go up or down, works great.

[madjr]

another workaround is using the gnome panel brightness applet.

just add it to your panel and use the mouse wheel to make it go up or down, works great on my Dell inspiron.

[TwiceOver]

THANK YOU!!

One of the last hardware problems on my Dell Inspiron 1501.

[taiye]

Works nicely on a Compaq Presario M2512 AU. Thanks!