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 no driver at all to do so,but anyway this is not the key issue). So I was wondering if there is any other colour calibrating hardware(from Pantone or any other decent company) which will be compatible with Ubuntu.There is I am asking this is because I have noticed that in Windows 7 where the Pantone colour calibrator of my laptop works,the eye strain is not happening so often it when it happens it usually is noticeable after a 2-3 hours where in Ubuntu I get it usually after 40 minutes of continuous use.
If by the way there is a way to make Ubuntu to use the colour of the laptop if you do not mind please explain to avoid any additional expenses from the purchase of a new colour calibration hardware.
I found a solution to my problem.The developers/developer who are/is making the dispcalGUI they mention which devices are supported by their software.You can see it to their website HERE
So I guess I will go for X-Rite i1 Display Pro.I would like to go for a Huey Pro,but I looked it up on the web and there were people telling that Pantone is not supporting any more that specific device and whoever has a newer/more modern screen (either laptop screen or a normal PC monitor or MAC monitor) might not be able to make it work properly with them and make the colors look nothing,but normal.
For Linux supported hardware, there's the ColorHug, which was created by Richard Hughes, the principal developer of GNOME Color Manager. I have one, and can recommend it. It comes with a liveCD you can use to calibrate almost any x86-based system; I've used it on Macs, too.
Alternatively, you could search your Windows partition and see where the Pantone calibrator has put the ICC file for your display. If it uses a standard file, it should be usable with Ubuntu. Don't forget that some applications — notably Firefox (for details, fiddle about with the settings described here) — use their own colour management framework.