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Questions tagged [gamma]

Gamma or gamut is is a certain complete subset of colors. The most common usage refers to the subset of colors which can be accurately represented in a given circumstance, such as within a given color space or by a certain output device. Use this tags for questions concerning gamut/gamma on Ubuntu.

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Does anyone knows how to fix Intel+Nvidia gamma problem?

This is problem on HP laptop which has 2 video controllers. By using prime-select you can choose Intel or Nvidia. If you choose "prime-select intel", then xgamma working, but you are using low speed ...
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Text in Ubuntu 18.04 are too “white/bright”

I am having some trouble reading in both firefox and chrome. The texts in black/grey are sometimes unreadable (too white), mainly in login boxes. What can i do about it? Sorry about my english, i live ...
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Something is bad with colors (only in Ubuntu 18.04)

I have a problem with colors on one of my displays. It's BenQ GW2470. I can't see things like shadows or thin lines etc. On the second monitor, I can see proper colors. The weird thing is that this ...
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How do I change gamma on wayland

On X, I could change gamma by tuning the xorg.conf file and add a "Gamma" line with the right value to the "Monitor Section". How do I do this on wayland? [edit]Or: What's the name of the tool for ...
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xrandr --gamma values not reported accurately

When setting the gamma values using xrandr the monitor repaints appropriately. When retrieving the gamma values xrandr is not reporting them correctly: $ xrandr --output DP-1-1 --gamma 1.2:.9:.7 --...
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Dark brightness / gamma with Nvidia drivers

I have this problem... When Im on Ubuntu 16.04 (LTS) or basicly every Linux distro that i tried before, i have a bug. On open-source drivers, my brightness and gamma are normal, but when i use any ...
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How to use “xrandr --gamma” for Gnome “Night Light”-like usage?

Background: More red / Less blue at night To save the eyes at night, adding more red and/or subtracting blue, is becoming popular in Windows 10 (blue-light filter) and Linux; Gnome Desktop (Night ...
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xrandr : Failed to get size of gamma for output default" for mDP type connection

My system specs : Intel i7-8700k (Coffe-lake) Mother board : ROG(Maximus X Hero) OS :Ubuntu-Gnome 16.04 I booted my new PC with Ubutnu-Gnome 16.04, after installation the screen resolution is ...
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Problem with custom resolution ubuntu 17.04

I installed Ubuntu 17.04. I have a problem with the screen resolution, I want to set a resolution of 1366x768 but the max resolution that Ubuntu allows me is 1024x768. I tried to increase the max ...
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How to control the RGB components for gamma+brightness+contrast from command line?

I saw this on nVidia application. We can control, for each component of RGB, these 3 values: gamma, brightness and contrast (below showing only for Red component): So, I want to know if we can access ...