laptop brightness not changing.

ankitchawla · 06-07-2008, 12:06 PM

i have a compaq laptop v3335
i have installed fedora core 8 but after installing my desktop brightness is not changing not manually nor by pressing the fn+f6 and ffn+f7 key
please help in resolving this problem.

Junior Hacker · 06-07-2008, 02:46 PM

Have you looked in the bios, (setup)?
I know it's a little inconvenient not being able to do it on the fly when the operating system is running, that's how I change it on my Dell XPS. I can dim it a lot more if I remember correctly, for those times I need to be inconspicuous.

If your using Gnome desktop, also have a look in the gnome-power-manager for a brightness slider.

And my last suggestion:
Try Googling "laptop hotkeys in Fedora 8" or similar. Here's one that might help.

onebuck · 06-07-2008, 05:03 PM

Hi,

Quote:

Originally Posted by ankitchawla

i have a compaq laptop v3335
i have installed fedora core 8 but after installing my desktop brightness is not changing not manually nor by pressing the fn+f6 and ffn+f7 key
please help in resolving this problem.

I don't use FC8 but you should make sure that 'acpi' or 'apm' is enabled.

ankitchawla · 06-08-2008, 12:49 PM

Quote:

Originally Posted by Junior Hacker

Have you looked in the bios, (setup)?
I know it's a little inconvenient not being able to do it on the fly when the operating system is running, that's how I change it on my Dell XPS. I can dim it a lot more if I remember correctly, for those times I need to be inconspicuous.

If your using Gnome desktop, also have a look in the gnome-power-manager for a brightness slider.

And my last suggestion:
Try Googling "laptop hotkeys in Fedora 8" or similar. Here's one that might help.

i have tries the brightness slider but it doesn't work. moreover when i switch of my ac power mode the brightness doesn't decrease automatically as it used to be in windows.