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Questions tagged [xcalib]

15 questions
13
votes
3 answers

xcalib error - unsupported ramp size

I'm trying to change the contrast with xcalib with the command xcalib -co 70 but I get the following error: Error - unsupported ramp size 0
tomasantunes
  • 244
11
votes
3 answers

`xcalib -i -a` controls only one of two screens - can it control both?

I am using 2 screens, and wish to invert the colors on both of them without using compiz (I'm using gnome shell). I can use xcalib -invert -alter as suggested in this question, but it only inverts one of the screens. Is there a way to specify both…
drevicko
  • 4,523
9
votes
2 answers

How to adjust contrast with xcalib

I'm trying to adjust contrast on my laptop, a ThinkPad E430, running ubuntu 12.04: xcalib -co 70 -a xrandr --output LVDS1 --brightness 0.7 Either of them works only for 1-2 seconds and after that contrast drops to its normal setting by Ubuntu.…
user52151
  • 265
5
votes
2 answers

How to reset xcalib contrast to default without seeing screen?

I installed xcalib to adjust my screen contrast, and I executed this : xcalib -co 0 -a Which set my screen contrast to 0 , and now my screen turned dark, and I don't have any clue as to how can I reset this setting ? Thank you
SmootQ
  • 539
5
votes
1 answer

xcalib stops working at random Ubuntu 18.04

I have just upgraded my ubuntu (Ubuntu 18.04.2 LTS, bionic). I am using xcalib -i -a to reverse the colors of my screen. Unfortunately, since the upgrade, something seems to have broken: xcalib stops working at random (and this is a little nightmare…
Synia
  • 101
  • 4
3
votes
2 answers

xcalib -inver -alter does not work with the NVIDIA driver version 364

I have been using xcalib -invert -alter to reverse the colors in my screen. The command works fine with the nouveau driver using the onboard graphics driver. However, when I switch to NVIDIA binary driver version 364, the screen color is not…
Sertan Senturk
  • 51
3
votes
2 answers

How could I make my display monochrome?

Let's say I want to simulate on old monochrome gas plasma display on a current-day Ubuntu installation. That could be something like this: https://www.youtube.com/watch?v=Di9OQLiwbIU How could I do this? I'd mean making everything monochrome.
d3pd
  • 3,791
3
votes
1 answer

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?
unhammer
  • 2,321
2
votes
0 answers

xcalib only works upon restarting computer

I'm running Ubuntu Gnome 16.04.1 LTS on a Dell XPS 13 laptop. After installing xcalib, running "xcalib -i -a" won't invert colors initially; instead, it only works when I set my laptop to sleep then turn it on again. The reverse is also true, making…
Alex Kadah
  • 21
2
votes
1 answer

`xcalib -i -a` won't invert colors anymore

I used to use the xcalib -i -a command on my old desktop system running 18.04 with an onboard Intel graphics card. This xcalib -i -a command successfully inverted my system colors. I just got a fancy new 20.04 desktop with a Radeon graphics card and…
Display name
  • 2,331
1
vote
0 answers

using xcalib -i -a to invert colors in just *one* monitor

For years, using Ubuntu 16.04 LTS, xcalib -i -a would invert the colors of just one monitor on my dual monitor Xorg setup. For that reason, I used both xcalib as well as xrandr-invert-colors, which successfully inverted colors on both screens.…
lara michaels
  • 213
0
votes
0 answers

Ubuntu XFCE options to emulate Windows Color Filter Grayscale

I am looking to see if there are any options outside of Gnome plugins to achieve some color filters to protect my eyes during evening laptop sessions. I have attempted using a redshift config and xcalib to see if i can atleast get something easier…
Alexandru Gologan-Dalimon
  • 21
0
votes
0 answers

I tried all the answers I saw on the internet, but xcalib still doesn't work on my Ubuntu 22.04.2. What to do?

I am an Ubuntu 22.04.2 LTS user. I enjoy using linux distributions, but I still consider myself a novice in using terminal commands. My laptop is an ASUSTeK COMPUTER INC. Processor: Z450LA. Intel® Core™ i3-4005U CPU @ 1.70GHz × 4. Graphics: desktop…
Dan Ben-Hur S. Oliveira
  • 1
0
votes
2 answers

what is dependencies, build, installing about apt ? (intalling xrandr-invert-colors)

I want to install xrandr-invert-colors on my ubuntu 18.04 to invert display of laptop and monitor both. but have no idea what is dependencies, build and how to install it. Yeah~ I am ubuntu newbie and have typed only sudo apt-get install 000…
Roy
  • 3
0
votes
0 answers

xcalib error -> unsupported ramp size -> Missing letters in menus and folder names

When issuing xcalib commands I was getting the error Error - unsupported ramp size 0. I was able to fix this by creating the following file /etc/X11/xorg.conf.d/20-intel.conf and placing this text inside the file Section "Device" Identifier "Intel…
stackinator
  • 2,041