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Mint color calibration is disabled

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linux-howto

http://superuser.com – I just install Linux Mint Debian Edition in at laptop Dell XPS M1530. I want to calibrate the color of the screen but, when I open Menu > Preferences > Color dialog, the calibrate options is always disabled. I also tried dispcalGUI, and also the calibrate buttons are disabled. How can I do it? UPDATE: I'm using Cinnamon (HowTos)