Brightness Problem

Question

Hello there Linux user I am a new user and I don't know how to turn down my brightness of my laptop when I change it with the keys it show on the screen going down but the screen is not dimming I don't know why and I will really like to know why since i want to use this a long time please help my laptop type is :Acer Asphire-V5-561PG 6819

Version is there any fix please help

see here. http://askubuntu.com/questions/128463/how-to-control-brightness — g_p, Sep 09 '14 at 06:46

JomanJi · Answer 1 · 2014-10-27T14:56:34.280

0

Expanding on the current answer, get the output name of your screen by running:

xrandr --current

You can determine if the screen is running if it has 'connected' next to it. For me, the display was called

eDP1

So, I can change the brightness by runnning

xrandr --output eDP1 --brightness 0.5

And replacing 0.5 with any value

edited Oct 27 '14 at 14:56

answered Oct 27 '14 at 14:21

JomanJi

311

Although xrandr --current includes the desired information, it is quite more extensive then just the screen name. You might want to mention that it is the name before "connected" – Jacob Vlijm Oct 27 '14 at 14:41

score -1 · Answer 2 · edited Sep 17 '14 at 17:57

-1

Open the terminal. Type:

xrandr --output LVDS1 --brightness 0.5

You can change 0.5 to any value. 0 will make the screen black and greater value than 0.5 will make the screen brighter.

edited Sep 17 '14 at 17:57

Eliah Kagan

117,780

answered Sep 17 '14 at 17:35

Dung Trinh

9

Brightness Problem

2 Answers2