How to adjust contrast of laptop screen

[Chandan]

When I start Tiny core, the screen contrast goes to maximum level.
I want to reduce the laptop screen contrast. Which packages I have to download?
I use HP 520 model laptop.
Please help..

[TinyCoreLinux]

Hello friends
Logically, you don't need to install any additional extensions:

Code: [Select]

xgamma -gamma 0.75(0-10)
If you still need to adjust the brightness, you can also do this:

Code: [Select]

xrandr | grep -v disconnected | grep connected
xrand --output LVDS --brightness 0.5(0-1)


[Chandan]

In ubuntu, I used to run in interminal :
xcalib -co 90 -a
to reduce the screen contrast only. I dont't have to set red blue or green colors individually. I want something like that, to reduce the contrast only. Dont want to change other red green blue values...
Is there any way tot do that??

[Rich]

Hi Chandan
Welcome to the forum.

Found this on askubuntu:

On command line (Terminal), try writing

Code: [Select]

xgamma -gamma 0.3
You should see a very noticeable difference. Experiment with different values. 1.0 is normal value.
Setting a lower gamma will increase the contrast of bright values (decrease white washing), and
setting a higher gamma will increase the contrast of dark values (but increase white washing).

This avoids having to adjust the colors individually.

You will need  Xorg-7.7-bin.tcz  for this.

[Chandan]

Thanks..