How to Adjust Brightness in Lubuntu 15.04

Question

I just installed Lubuntu 15.04 on my Toshiba Satellite laptop and can't figure out how to adjust the brightness. I can't find it anywhere and have been looking at other people's questions for an hour trying to figure this out.

Can anyone point me in the right direction? Thanks.

Solution

This might not fix the problem, but it does provide a workaround.

There is a program called xbacklight that you can install via apt-get, and it allows you to change brightness with a simple interface through the command line.

$ sudo apt-get install xbacklight

The program lets you set the brightness on a scale from 0 to 100. For example, to maximize your brightness, you could do:

$ xbacklight -set 100

Additionally, if your problem is that your function keys aren't changing the brightness, there might be a problem with your keyboard drivers.

Comments

[theferrit32]

Have you tried this: pclinuxos.com/forum/index.php?topic=127998.0

[techraf]

OP asked "Can anyone point me in the right direction?". Which direction is your answer pointing OP to?