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 Intel® HD Graphics 4400 (HSW GT2).
Previously used this same machine with Ubuntu 20.04.6. I upgraded to the new version of Ubuntu recently.
I have always used xcalib to invert the colors of my screen.
So now that I have upgraded my computer system I went to install xcalib using: ``sudo apt-get install xcalib``` Everything runs fine.
But the command I always use, xcalib -invert -alter, or xcalib -i -a`` didn't work, and the following output came up: Error - unsupported ramp size 0```
I tried following what was in this answer: xcalib error - unsupported ramp size
First I tried these steps: https://askubuntu.com/a/1087465/1705480
There was no solution with that. Actually if I try:
xcalib -i -a , nothing happened.
Then I tried these steps: https://askubuntu.com/a/945565/1705480 And still nothing happened. The screen is still the same colors.
Truthfully, the only change is that I now have xcalib 0.10.0 installed and cloned from GitHub, and if I type any incomplete commands, like xcalib -i, I get the output: Warning - Unable to read file ''
What can I do to run xcalib correctly on my notebook and invert the colors on my screen?
Translated with www.DeepL.com/Translator (free version)
