I installed Ubuntu 12.10 on a Sony vpc cw18gf.
I can not decrease or increase brightness and my Fn key does not work.
My brightness and lock settings are as in this image:
I tried both pages below but my problem is not solved.
page 1: Brightness control doesn't seem to work on a Toshiba Satellite M115 laptop
page 2: Ubuntu 12.04 - Brightness controls not working [duplicate]
I'm using Samsung RV 520 installed Ubuntu 12.04 LTS
but the problem is I'm not able to control the screen brightness, not only this whenever
I try to increase/decrease the screen brightness the laptop stuck-and I have to restart. Any help?
Please Developers fix this bug.
thanks
I have a Samsung Series 5 NP530U3C laptop with an Intel HD 4000 graphics card. I've found that I can't control the screen brightness with either the GUI tools (e.g. KDE's Power Management or the equivalent in Unity) or the function keys on the keyboard.
However I can control the brightness by writing directly to the files in /sys/class/backlight/acpi_video0.
Hi everyone. Just installed Fedora 17 on my Samsung NC110 netbook because I'm loving it on my desktop. At first the brightness control worked fine, but after I ran the software update it doesn't work.
Hi
I've got a laptop with the Intel GMA 4500 chipset, and my Ubuntu system is using the i915 driver.
I've gone through a few different versions of Ubuntu, and other linux distro's, each one unable to control the brightness. This is obviously eating up my battery life, since the screen is at a constant 100% brightness, when I usually use about 35% brightness.
Hi Fedora Users!
I've got a very annoying problem. Although the F2 and F3 function keys work fine in terms of adjusting screen brightness, there is a but. I must always be careful not to decrease brightness to zero with F2 because whenever I do it, I cannot increase it back with F3, the screen remaining almost black.
Hi everyone, when I start my computer it starts with max brightness, I don't like it.
So in rc.local I put
Quote:
echo -n 25 >/proc/acpi/video/GFX0/LCDD/brightness
It work fine for run-level 3, but when I startx the brightness go to max again. Can I control/save brightness for X.
I use slackware64 13.1 with a Ati graphic card.
I recently download Ubuntu 12.04 LTS onto my Macbook Pro 5-5. Everything worked seamlessly, save for the brightness control.
Hi friends,
I would like to know if there is an application that can manually change the brightness LCD monitor of a desktop computer;
i've seen f.lux but i would one manual utility
many many thanks