Definitely a laptop problem, hopefully not a hardware problem.
When I try to adjust my laptops screen brightness, it goes to some very low brightness and then the screen starts flickering (ie changing between different brightness levels). When my laptop boots, it's at full brightness, and when I adjust that, flickering starts. After that I cannot get it back to any non-very-low brightness.
Overview
My problem is that the hotkeys to change brightness of my laptop are not changing the underlying setting in Gnome.
Hello!I have just install Crunchbang 11 (Statler) on my 64 bit. laptop. And I have problem. Every time I put my laptop on battery, system reduces my screen brightness. I checked Xfce-power-manager and it shows that my monitor brightness level is 20% (on AC 80%). I tried to change these number but it didn't worked out.
Hi all,
So i've recently installed Kubuntu 13.04 on my Vivobook V300 and i've just noticed a strange bug with my keyboard brightness FN keys. If I use the Brightness Down button it works as expected, however if I use the Brightness Up key it seems to scroll through 3 different brightness levels before returning to the first and repeating the process.
My son has a new Lenovo G580, and it works great with 13.04, except for one minor thing... How can I set the default screen brightness? He has to manually increase the brightness once the laptop is booted up, because it wants to black out the screen for some reason.
Hello! I have just installed Ubuntu 12.10 on my Acer Aspire One 725 but I cannot seem to adjust my screen brightness and it is stuck on maxmimum draining my battery quickly. I have searched through every thread but nothing seems to work for my specific laptop. I have tried editing my
Code:
/etc/default/grub
as tried in many other threads but it has not worked for me.
I tried using Fn+<- to turn the brightness down, and it showed the little sun icon indicating the brightness was turning down, but it didn't do anything.
I also tried xbacklight -set 100 but that didn't do anything either.
How can I adjust my backlight?
Is there a way to prohibit Powerdevil from messing with the screen brightness?
I already tried to disable the tick box "Let PowerDevil manage screen powersaving" but that does not fix it. It still controls brightness.
I just installed Fedora 18 on my ASUS K55VD laptop 2 days ago, I've noticed that when i try to adjust the screen brightness in KDE either with the fn keys or with the GUI in the power management or the using the slider when clicking on the battery icon, All i get is the brightness bar comes up and changes but almost instantly reverts to 90%.