How do I change screen contrast?

Question

The contrast on my laptop's screen is not enough for me.. Do you know how to change screen contrast in Ubuntu 11.10? I've tried xcalib and f.lux, but it isn't what I'm looking for.

Answer 1

These instructions will allow you to invert the colors on your screen by pressing Ctrl+m. This should increase contrast and allow you to more easily see things when they are most difficult to read.

1. Install CompizConfigSettingsManager
2. Open it
3. Go under Accessibility
4. Check the box next to "Negative"
5. Click on "Negative" to open it's options
6. Change the "Toggle Screen Negative" key to Ctrl+m

Answer 2

I have wondered why my Linux box had washed out colours compared to my windows gaming laptop. xgamma 0.7 solved that problem after half a year of wondering what question to write.