I have my laptop set to maximum brightness, but it's not bright enough. Is it possible to somehow make it brighter?
asked May 16, 2016 at 10:27
2 Answers
Run this to see a list of your outputs. You're looking for the one that is "connected":
xrandr --current
Here's a screenshot of my list. The output I want is the "connected" eDP1 at the top:
Now you can run these commands to make adjustments. Replace eDP1 with the name of your output, and change 1.2 to make the adjustments:
xrandr --output eDP1 --brightness 1.2
# Note: 1 is default
You can also use gamma instead of brightness:
xrandr --output <outputname> --gamma 0.5:1.0:1.0
# Note: 1.0:1.0:1.0 is default
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2You should not add other information in the middle of your code, it breaks the code and when people copy it, it simply won't work. I have edited it but be careful not to break your code. May 16, 2016 at 11:53
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1@MarkKirby Thanks for pointing out that mistake. I will make sure not to do that again.– HizqeelMay 16, 2016 at 11:56
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@Hizqeel, I get the following:
userone@laptop:~$ xrandr --output DVI-0 --brightness 2 warning: output DVI-0 not found; ignoring xrandr: Need crtc to set gamma on. userone@laptop:~$May 17, 2016 at 9:39 -
1@oshirowanen you obviously didn't read the comment to your question. DVI-0 is not the name of your screen. May 17, 2016 at 10:44
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1@oshirowanen I have updated the answer. If this is clear and solves your problem then let me know.– HizqeelMay 17, 2016 at 10:45
use both of them
xrandr |grep " connected" |cut -f1 -d " "
get the name that listed and use it instead of eDP-1
xrandr --output eDP-1 --brightness 1.4
xrandr --output <screen_name> --brightness 1.1does that, but the screen usually looks ugly then. Retrieve<screen_name>from the output ofxrandr.