OSxMavericks Mini Display Port Won't Return to Original Display Settings When Unplugged

I have a new MacBook Pro 13" Retina Display and display the screen on my Samsung TV. I have never had any problems with the display adjusting from the Samsung output back to the laptop settings when unplugged (on my old MacBook Air), but with OSxMavericks, it will not convert/adjust. When plugged in and displayed on the Samsung, the laptop display is very small; when subsequently unplugged, it is stretched and I have to manually reduce the size of each window. I would like it to be able to adjust to a larger display when plugged into the Samsung but then automatically adjust back to the smaller display when the mini displayport is unplugged. I feel that this is an easy setting to change, but I can't find it. Can anyone give me a tip? Thanks!

I had a MacBook Pro 2010 that was running 10.9.1 and worked fine using mdp to hdmi. Now I changed it to a pro 2012 running 10.9.2 and the same wire no longer works.

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I need to connect a computer monitor to my MacBook Pro but have found that when using the mini display port to VGA adaptor the screen display on my macbook is very small font. Please what do I do to correct this?

I need to connect a computer monitor to my mac book pro, using a mini display port to VGA adaptor. But have experienced a drastic reduction in font size on my
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Hi alangium,
Welcome to the Support Communities!
Resetting your computer's PRAM should restore your Macbook Pro's screen appearance.
OS X Mavericks: Reset your computer’s PRAM
http://support.apple.com/kb/ph14222
This article may provide some information about your Mini DisplayPort to AVI adapter. Have you tried to connect a different VGA monitor to your Macbook to see if you get the same results?
Apple Mini DisplayPort adapters: Frequently asked questions (FAQ)
http://support.apple.com/kb/HT3382
18. What is the maximum resolution available for use with the Apple Mini DisplayPort to VGA adapter?
The resolution available with the Apple Mini DisplayPort to VGA Adapter is 1920 x 1200. VGA displays that use higher refresh rates (such as 85 Hz) at resolutions of 1600 x 1200 or greater may not generate video properly until you lower the refresh rate.
Apple computers: Troubleshooting issues with video on internal or external displays
http://support.apple.com/kb/HT1573#5
How can I detect displays?
If the detect displays option is not available, hold down the Option key while you are in the Display pane.
How do I select additional resolutions on my display?
You can use the Display pane of System Preferences to specify how your display works. Not all options appear for all display models. By default the best resolution for your display will already be selected in System Preferences.
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I hope this information helps ....
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Wanted to give everybody an update on this situation. Previously I indicated that the suggestion to change the BIOS to discrete graphics only fixed this problem. Turns out I spoke too soon - it seems that even with this setting, I only get native 2560x1600 resolution 25% of the time. Fiddling around with other settings did nothing, in the end I concluded that the discrete vs. optimus setting in the BIOS didn't do anything to help me - I just got lucky following the BIOS suggestion. There may be other things that correlate with this 25%, but I don't have time to track down what they might be.
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Problem:
Apple Mini Display Port does NOT work at resolutions over 1600X1200 on NON Apple Cinema Displays.
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Thanks, but I think two things may be different in that setup.
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2. It was a laptop not a Mac Pro with a video card.
I think it has specifically to do with either one or both of the above combos. In particular I think it's the video card they are putting in them.
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MacBook suddenly won't detect my display, Using Mini Display Port to VGA?

MacBook suddenly won't detect my display, Using Mini Display Port to VGA?

dohdoh1985, I have the exact same problem also! I recently bought a 42" RCA LCD TV. I connected my MacBook Pro to my TV using a Dynex Mini DisplayPort to HDMI adapter that I got from BestBuy. It worked great until I upgraded to Mac OS 10.6.4 and then it suddenly stopped working. Same TV, same settings, same cables, same adapter. Nothing changed since the last time it worked except that my OS was upgraded to 10.6.4, so i am assuming that is the culprit. The symptoms are EXACTLY the same as what dohdoh1985 described; when I plug in the TV, the laptop display flashes (3 times) as though it is detecting an external display and the picture on the TV briefly goes from blue to black for about 1 second then back to blue. The TV does not appear in the display menu / control panel and there is no sign that the MacBook detected it. I went through the usual troubleshooting steps (reset PRAM, checked connections, tv settings, etc) but nothing worked. Other HDMI sources (i.e. Blu-ray player) work fine on the TV using the same HDMI cable on the same port so there is nothing wrong with the cable, the TV or the TV's input settings.
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OSxMavericks Mini Display Port Won't Return to Original Display Settings When Unplugged

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