Questions related to colour management of the machines display, etc.

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Replace screen colors

Is it possible to replace colors on my screen? I want to search for colors close to white (#FFFFFF) and replace it with something darker like a light grey. My current setup is Ubuntu 14.04, XFCE, ...
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0answers
19 views

Color calibrate printer/ink/paper using the integrated scanner (without requiring a colorimeter/photometer device)

Ubuntu 15.04 has successfully recognized my All-In-One printer+scanner Canon PIXMA MG3550 as a Canon MG3500 series. Scanning and black-and-white printing are correct :-) But color printing does not ...
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0answers
15 views

Installation screen problems

on installing Ubuntu 14.04 two major problems colours are awful, can hardly see icons my screen is small, and can not scroll down to see final icons Questions therefore can colours be changed at ...
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1answer
39 views

Screen has broken color set after a while - Ubuntu 14.04

After a while of no activity the screen locks, but when I log in the screen looks like this: :D I am sure it is something with the software, not the hardware as I have never experienced similar ...
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0answers
13 views

Xorg blocking a specific color channel

I'm curious as to whether it's possible or not to block a specific color channel or set of channels in Xorg. (I.e. Display only Red/Red and Green on the screen instead of Red, Green and Blue); ...
3
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0answers
134 views

Spyder5 Monitor Calibration Ubuntu 14.04

I tried to get the Spyder5Express running under Ubuntu 14.04. Installed is dispcalGUI and the Argyll_V1.7.0 software. Unfortunately the device is neither detected in the GUI nor in the Terminal. I ...
2
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1answer
141 views

How do I change color profile via terminal commands?

I frequently change color profiles from the color settings. I would like to set an alias for convenient switching between color profiles e.g. D50 to D55 and switch back. Does anyone know how to ...
2
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0answers
22 views

color problem Epson XP215

I just installed Epson XP 215. Printing plain black text works,only the CMYK colours are not lined up correctly: there is a vertical shift... Can someone help me on fixing that problem? Thanks in ...
1
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0answers
94 views

Display color calibration error “unknown calibration display type selection”

Fresh installation of Ubuntu 15.04. Running Settings-Color-Calibrate Have "Eye-one display 2" sensor connected and working. Getting the message during step be step calibration configuration: ...
1
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1answer
133 views

Ubuntu : Why little yellow tint on display?

Why little bit yellow tint on Ubuntu OS? When I see white colors on both the windows and Ubuntu. Ubuntu is little yellow display. Why Its little tuned by Yellow color? Sorry I don't know weather its ...
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0answers
78 views

What is a good Ubuntu application for adjusting the screen colour balance and contrast?

It seems that the screen of my Samsung Series 7 Chronos laptop has a weird white glare. (try seeing how the pdf file on the Overleaf website looks like!) I installed "redshift" but that is just ...
0
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0answers
295 views

How do I MANUALLY calibrate my laptop's monitor color on ubuntu

My laptop's screen has a yellowish tint so when I look at a white page, it seems yellow. I was able to correct this in windows by using the built in color calibration tool to reduce the amount of red ...
0
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1answer
189 views

Adjust color settings

I am looking for a nice and simple way to adjust screen colours. Redshift seems to do it so it is certainly possible. Is there a utility which gives some Red, Green, Blue scroll bars to adjust screen ...
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0answers
44 views

How can I apply a color correction LUT to an arbitrary X window?

Here is an explanation of what I mean by LUT: http://www.lightillusion.com/luts.html I'd be interested in ways to apply any of the three varieties of LUT described there: a LUT defined by a simple ...
0
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1answer
184 views

How can I set a certain temperature on Redshift?

I just switched to Ubuntu, and on Windows I was using f.lux. I was able to set the temperature to a certain time and leave it at that, it wouldn't change at all. Now I installed Redshift and I can't ...
1
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0answers
31 views

Color settings keep popping up by themselves

Recently, my Ubuntu 14.04 installation is showing a very irritating behavior: every few minutes, the color settings window just pops up out of the blue. It says: "Each device needs an up to date ...
1
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1answer
268 views

Display Contrast Ubuntu 14.0.4 x32 on Elitebook2560p

I downloaded icc-profiles and icc-profiles-free from apt-get and this gave me a few more options inside Gnome-Color-Manager / but I still have no option to Calibrate (button is disabled) and all of ...
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0answers
60 views

Ubuntu 14.04 Color Variable Troubles

I have tried all the links from the first 2 pages of google searches regarding editting the LS_COLORS variable, but I can't get it to work as expected. I want all my source code files to show up as ...
0
votes
1answer
170 views

Compiz plugins / filter - ordering

Using Ubuntu 14.04. In Compiz, I have enabled Negative and OBS plugins (color filters). What I want is, filter A should be applied after filter B (I want to be able to control the order). How can I ...
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0answers
105 views

How to make font black and background white on dash window

Ubuntu 14.04.1 Theme Radiance Opacity 0 Background solid color white I want simple black text on white background like in normal books. Dash window: for selecting programs program label font color ...
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1answer
261 views

14.04: gnome-color-manager - fails to connecto 'instrument'

When using: System Settings > Color > (select display) > Calibrate ... to attempt to do calibration on a display I consistently get: gnome-color-manager new_disprd() failed with ...
2
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0answers
52 views

Is there a way to make cmyk thumbnail, images, look good in ubuntu

Is there a way to make cmyk thumbnails, images, look good in Ubuntu. Some appliactions like Krita and scribus show correct color on screen. I know they support cmyk profiles. But I wanted to know ...
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0answers
2k views

Display calibration in Ubuntu 14.04?

I'm experiencing problems with my display. My monitor displays weird whites. In windows I can use Calibrate Display Color wizard and set the color balance of rgb to extreme low to fix it but cant ...
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0answers
49 views

Changing desktop item text colours on 14.04

I found questions like this on forum, but i need to change only text colour of the items on desktop folder. My wallpaper obstructs the black coloured item names. But i don't want to change the item ...
1
vote
2answers
498 views

How to get accurate colors and contrast in Ubuntu?

I just bought a couple of Dell U2414H monitors, but I don't think this has anything to do with the monitors. In windows the black levels are perfect, but in Ubuntu the black levels are way off. ...
1
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0answers
303 views

Cannot calibrate my monitor & laptop

I want to calibrate my laptop (Ubuntu 14.04) and monitor because they have slightly different colors, but the calibrate button is grayed out. Why is that? How can I fix it?
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0answers
69 views

Adjust color temperature using GUI [duplicate]

I'm using a laptop with Ubuntu 14.04, using a external monitor I can adjust the color temp of the external monitor using its physical buttons in the monitor. The question is, is there a way to adjust ...
1
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0answers
65 views

color adjusting in VLC

Does the VLC media player 2.0.8 have a control for separate adjusting R, G, B of its window? I have not found any; does a plugin exist for the purpose? Thanks!
2
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0answers
276 views

screen is displaying wrong colors after dual booting 14.04

I have a Dell inspiron 17r which has an Intel hd graphics 4400 GPU dual booted with Ubuntu and Windows 8. When I first tried Ubuntu without installing my screen was green instead of the usually ...
0
votes
1answer
898 views

How to reduce the saturation of of laptop monitor in Ubuntu 14.04?

I want to reduce the saturation of my laptop display as its very high and hurts my eyes. I own a Dell XPS 15z. Also, I would be very grateful if anybody can help me to show how all the color ...
0
votes
1answer
930 views

How can I calibrate colors?

In System Settings -> Colors there is color panel but "calibrate" button is grey and I am unable to calibrate it by myself.
1
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0answers
289 views

Edit color profile (.icc) to change gamma

As a lot of other users here on Ask Ubuntu, I need to use xrandr to correct the gamma settings on one of my external monitors. Settings applied this way aren't permanent and they can reset basically ...
0
votes
1answer
1k views

Can I run gcm-calibrate on Xubuntu without installing all of Gnome?

I've got the ColorHug and it's got this nice LiveCD that runs Gnome and runs through a user-friendly monitor calibration program. Can I do this from Xubuntu, without booting into the LiveCD?
2
votes
1answer
176 views

Calibrate Printer Color by Hand

How does one calibrate the color of a printer by hand or by eye. More specifically, the printer just has to match the monitor, it doesn't matter if they are both perfect. Is there a way that you can ...
3
votes
1answer
8k views

How do I calibrate colors without extra hardware, like dccw.exe on Windows?

Colors on my monitor are too yellow. On Windows 7, there is the color calibration tool accessible from the Control Panel, or as dccw.exe. I'd like to calibrate color without extra spectrometers ...
2
votes
1answer
883 views

external monitor has very washed out colors, blacks look almost gray

I have a macbookpro (late 2013 retina model - 11,1) running xubuntu 13.10. I have the main laptop monitor and two Asus VS238H monitors. One connected by DVI and another by HDMI. Currently, one ...
2
votes
1answer
273 views

Gnome Color Manager, To/From sRGB Tabs

When I open gnome-color-manager, select a profile, and hit "View Details", there are two tabs labeled "From sRGB" and "To sRGB". I'm not sure exactly what these are, but I assume that you want them ...
2
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0answers
16 views

How can I turn my screen mode to grayscale? [duplicate]

I would like to temporarily turn my screen gray, to estimate how certain images would appear if printed with a black-and-white printer. I think xcalib could do it but I don't know how. Does anyone ...
0
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1answer
101 views

darktable can't startup

During darktable startup from console I get: nnnn@nn:~$ darktable darktable: symbol lookup error: /usr/lib/x86_64-linux-gnu/libcolordprivate.so.1: undefined symbol: cmsGetHeaderCreator I tried to ...
3
votes
1answer
1k views

How can I improve color saturation in Ubuntu?

My laptop, a Thinkpad T430 with Intel HD4000 graphics, shows pretty desaturated colors by default. On Windows I can just increase saturation using the Intel Graphics and Media Control Panel to get ...
0
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1answer
351 views

Does ubuntu come with little CMS color management system

Does Ubuntu come with the little CMS libraries or do i have to install them myself. I am looking for a Linux that does.
3
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4answers
7k views

How to use GNOME Color Manager in Ubuntu 12.04?

I need to correct colours displayed by my monitor. From the 'Ubuntu Software Center' I have installed the 'GNOME Color Manager', but I cannot use it for making my own colour profile: I have not found ...
0
votes
1answer
137 views

accidentally applied color profile

I accidentally applied a color profile to my display in the color application in system settings. I was wondering if any one knew how to revert this, as there is no revert option in the window. I am ...
0
votes
1answer
812 views

How to set screen contrast using Ubuntu 12.04 on Macbook Pro?

I have a Macbook Pro running Ubuntu 12.04 LTS. It works fine with all the required packages. The only thing I see which is weird is colors are way too light. I think this is contrast ratio which I ...
11
votes
4answers
7k views

How do I set the prompt to use two colors?

One thing I liked about Mint was that the terminal would usually show two colors: everything from the left to the $ would be one color, and everything past the $ would be another. Is there a way to ...
2
votes
1answer
13k views

How to change GTK3 color scheme on Ubuntu 13.04

I am making the transition from Windows 7 to Ubuntu 13.04. I have run Ubuntu twice on my laptop before, and switched back to Windows 7. Mostly because the orange and gray colors of Ubuntu is just ...
3
votes
1answer
167 views

color calibration and 3d acceleration

I am a photographer and I am looking at moving to Ubuntu in the near future. I also enjoy playing games. I am planning on building a new computer specifically for Ubuntu. I've been doing some testing ...
3
votes
2answers
2k views

Can a 10-bit monitor connection preserve all tones in 8-bit sRGB gradients on a wide-gamut monitor?

This question is about color management and the use of a higher color depth, 10 bits per channel (30 bits in total, resulting in 1.07 billion colors, or 1024 shades of gray, sometimes referred to as ...
2
votes
2answers
855 views

Is there a GUI application for adjusting monitor color?

I have an Asus laptop with an i5 processor, and an nVidia 610m graphics card, and an external monitor that is slightly pink. It was easy to fix this with the Windows control panel. Seeing that Ubuntu ...
2
votes
2answers
3k views

Colour Calibration Hardware Compatible with Ubuntu 12.04 LTS

I have a Thinkpad W520 and it has a Pantone colour calibrator.I looked it up here and in Google Search but as it seems the gnome colour manager can't use it as calibrating device at all(maybe there is ...