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My monitor seems to have a slightly reddish tint when using the DVI input (it's a LCD, not a CRT). On the VGA input I can adjust the colors, but not on DVI. On OSX/Windows what I would do is create a custom color profile for that display with changed gamma/etc settings, but I cannot seem to find out how to do this under Linux.

Is there any way to change the color profile under linux (short of buying color calibration hardware and using dispcalgui)?

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Try xrandr --gamma 1:1:1. – Hello71 Jun 12 '11 at 16:04
Thanks, that fixed it! – Eli Jun 13 '11 at 0:02
Posted an answer so you can accept. – Hello71 Jun 13 '11 at 0:16

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Typing xrandr --gamma 1:1:1 will likely fix the problem. This should work on any X11 based display system.

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When I try this, it just gives me the usage and options. – John Aug 12 '11 at 1:41
@John: Read it. – Hello71 Aug 12 '11 at 1:59
I read it and re-read it. I even copy-pasted exactly the command you typed. I don't get what I'm doing wrong. (I fixed my display, but I would still like to know why the command didn't work.) – John Aug 12 '11 at 2:19
@John: I mean the usage. – Hello71 Aug 12 '11 at 3:02
I read and re-read that too, and I still don't get it. :/ – John Aug 12 '11 at 3:03
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