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problems with colors and refresh rate
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Fresh-Faced Recruit
Join Date: Nov 2006
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Hello, all!
I have just switched from PC to Mac and until this morning everything ran smoothly. For some reason my screen started displaying the everything in what appears to be 16bit? (It's not as vivid as before and there's a bunch of shading that looks like it was done with a pen or something - lots of black) and I am also unable to select a refresh rate (it's dimmed). I have tried using safe mode, but that didn't work.
Does anyone know what I can do to fix this and why it's happening?
Thanks much!
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Moderator
Join Date: Oct 2001
Location: San Jose, CA
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Go to Displays in the System Preferences application and make sure Millions is selected in Colors. As for refresh rate, that only applies to external displays. You can't select it on the internal because it's fixed.
Steve
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Fresh-Faced Recruit
Join Date: Nov 2006
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Hi, ibook_steve! Thanks for replying.
If I remember correctly, Millions was selected in Colors. I do have my mbp attached to an external monitor and saw the refresh rate at 60. Is that the problem?
If I reinstalled OSX would this problem be solved?
Originally Posted by ibook_steve
Go to Displays in the System Preferences application and make sure Millions is selected in Colors. As for refresh rate, that only applies to external displays. You can't select it on the internal because it's fixed.
Steve
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Fresh-Faced Recruit
Join Date: Jan 2002
Location: London
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Can you describe your setup in more detail? Do you always have the MacBook plugged into the external display? Do you have both displays on at the same time, or just the external display? Are you using video spanning or video mirroring? Which screen are you seeing the problem with -- the built-in display, the external display, or both?
Have you tried basic things like restarting your Mac, or clicking the 'Detect displays' button?
Also, if you could take a photo of the problem, that'd be a huge help in diagnosing it.
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Fresh-Faced Recruit
Join Date: Nov 2006
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Originally Posted by chrismear
Can you describe your setup in more detail? Do you always have the MacBook plugged into the external display? Do you have both displays on at the same time, or just the external display? Are you using video spanning or video mirroring? Which screen are you seeing the problem with -- the built-in display, the external display, or both?
Have you tried basic things like restarting your Mac, or clicking the 'Detect displays' button?
Also, if you could take a photo of the problem, that'd be a huge help in diagnosing it.
Oh, wonderful! I'll take photos tonight.
My mbp is connected to a 19" LG widescreen monitor (L194WT) - DVI to VGA (I wonder if there will be a noticeable difference?). They are on at the same time and I am using video spanning. I see the problem with both of the displays. I have tried regularly restarting, restarting in safe mode, and I do believe I've tried clicking the "Detect Displays" button. I'll try these things again tonight, though.
Thanks much!
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Fresh-Faced Recruit
Join Date: Nov 2006
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Thanks for your help, guys!
I just reinstalled OSX and everything is fine. I needed to do a clean install anyway
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Admin Emeritus
Join Date: Oct 1999
Location: Zurich, Switzerland
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I'd be willing to bet that you could have fixed the problem by going to System Preferences -> Universal Access and returning the "Enhance Contrast" slider to normal. It most likely got moved by accidentally pressing the command-option-^ key combination.
It's also possible (though less likely) that an improper ColorSync profile got selected.
One of the things that Windows users need to get of the habit of doing is reinstalling the OS at the drop of a hat. It's really not necessary on Macs to fix the vast majority of problems.
tooki
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Fresh-Faced Recruit
Join Date: Nov 2006
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Originally Posted by tooki
I'd be willing to bet that you could have fixed the problem by going to System Preferences -> Universal Access and returning the "Enhance Contrast" slider to normal. It most likely got moved by accidentally pressing the command-option-^ key combination.
It's also possible (though less likely) that an improper ColorSync profile got selected.
One of the things that Windows users need to get of the habit of doing is reinstalling the OS at the drop of a hat. It's really not necessary on Macs to fix the vast majority of problems.
tooki
Ah, okay. Thanks much! There is quite a lot I need to learn . I'm really surprised at how much "easier" things are with macs. Especially the whole dragging an app to the trash bin to uninstall. Haha. How convenient!
Do you happen to know of a place that has an organized list of basic tips and applications switchers should know of? I've been bookmarking places here and there, but would much rather be able to visit a single page.
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Fresh-Faced Recruit
Join Date: Jan 2002
Location: London
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Originally Posted by tooki
I'd be willing to bet that you could have fixed the problem by going to System Preferences -> Universal Access and returning the "Enhance Contrast" slider to normal. It most likely got moved by accidentally pressing the command-option-^ key combination.
Wow, good catch! Now that you mention it, that does fit the description of the problem perfectly.
Originally Posted by lizzle
Do you happen to know of a place that has an organized list of basic tips and applications switchers should know of? I've been bookmarking places here and there, but would much rather be able to visit a single page.
Apple has a pretty good Switch 101 mini-site on their Support site. A lot of it is quite basic, but there's some good info in there, and it's tailored for people who are coming to the Mac from Windows.
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