MacBook Pro Screen Goes Blue
If you’ve got a MacBook Pro from Apple, including the shiny new ones like mine, you might have noticed a strange problem in which you screen tints blue after being on for some time. I can’t really take a screenshot of it, but everything works fine with a slightly blue (cyan?) overlay. It’s only happened twice since I’ve had the machine (about a month of heavy use), so it’s a pretty infrequent occurrence.
I did a little Googling this evening and found a post on leyton.org with a fix that worked perfectly for me. I don’t use Fast User Switching on this machine so I don’t think that’s the problem, but running the DMProxy command immediately cleared the blue. Bookmarking it here for everyone else with the same problem, and for myself next time I forget that I’ve created a fixtint alias 
Anyone know what DMProxy actually does?
» December 18th, 2008, 9:42 pm • permalink • categories: Observatory • tags: blue, cyan, fix, fixtint, leyton.org, macbook pro, screen, tint • Subscribe to comments for this entry through the 
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Haven't had that problem with my MBP yet, but thanks for the heads up. Just in case.
Thanks for posting this. I have a MBP 2.5 GHz Intel Core 2 Duo and the same problem — happens about once a week and putting the machine to sleep and waking again seems to fix things. I'll have to try your fix.
The leyton.org link no longer functions – any clues as to what they said the fix was? This is driving me nuts.
Just click screen preferences and it goes away..
Anan: Wow, thanks, really easy solution!
This has happened to me a few times the last months, never really bothered as it goes away automatically eventually. Today i googled, and it is as you say.
Keep the bookmark, it still happens in Snow Leopard.
This just happened to me. Simply opened System Preferences>Display and it immediately removed the blue tint. Crazy, but it works!