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Hey folks (if anyone is still following this thread). I've been using the BrightnessMenulet as linked above at GitHub with success for a year and a half now with my Dell U2711 display connected via DVI. I've just upgraded to a Dell U2713H (newer model of the same display), however, and it no longer works, either by DVI or DisplayPort. I have no experience ...


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Put the brightness of your computer as low as possible (mine would completely dim so i can't see it) most likely using less battery power or even less than it would while the display is fully brightened. Make sure your settings are set to mirror on the display only.


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If you don't want to install any software or change settings, you can use the Terminal utility caffeinate. Open Terminal (located in /Applications/Utilities/), type in caffeinate, and press return ↩︎. If you want to set a timeout so it will go to sleep after some amount of time, use this: caffeinate -t 3600 That will make it stay awake for an hour. (3600 ...


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Check "Prevent computer from sleeping when the display is off" (edit: in Energy Saver setting) Leave it or press Shift-Control-Power to turn off the display


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You could try Caffeine from the Mac App Store! http://lightheadsw.com/caffeine/


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You could set hot corners. Push the cursor to that corner & it won't nod off. That would save you having to change the regular policy, for the times you do want it to sleep after being idle.


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In you Energy Saver options, just change "Computer sleep" option. For exemple you could put "Computer sleep" option to "Never" While on Power Adapter. Default option put your Mac to sleep after 15 minutes while on Power Adapter.


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We are using an inexpensive Mini DisplayPort to DisplayPort cable between newer (2013) MacBook Pros and the Dell U2713HM monitor, and getting the full 2560 x 1440 at 60 Hz. Our older MBPs need the more expensive Mini DisplayPort to Dual-Link DVI Adapter from Apple.


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I do not know what is it that you trying to do. The HDMI cabled external monitor has nothing to do with the Network (Internet). Also the "My Trace route" applications is bit out of date. I would suggest to use the build in app called Network Utility to check the internet connection parameters including the trace route. The Network Utility app is located ...


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I had similar symptoms on my MBP 13 (mid-2010). Internal display died suddenly and external display worked fine. None of the software or startup tricks did not bring the life back to in-built screen. Disconnecting and re-connecting the battery connector from the logic board fixed this problem. Here is the instruction: ...


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Was having the same problem. Display Calibration helps. :D just go to Sytem preferences, Display, Color Tab then Calibrate. :)


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The solution appeared to be straight forward: just set export DISPLAY=":0" in .bashrc or whatever file your shell sources its profile from.


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I came up with a workaround when I was finalizing the question: mirror only the phantom displays. To do this, go to System Preferences-> Displays and click Arrange (click gather windows if you don't see an option to mirror displays). While holding the Option key, drag the windows that you wish to mirror on top of one another. (In my case, I mirrored all ...


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with a mac pro13" 2013 retina (2.4GHz, 2.9GHz turbo boost) this works and I can clearly see turbo boost kicking in with very tight numerical code and taking the cpu up to 2.88GHz. With this code I am getting ~ 10.22Gflops from a single core using SSE (peak would be 11.6Gflops at 2.9GHz)


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Best workaround I have found so far: When the spaces are arranged vertically, you can move the dock by switching which display is the primary display. In Settings > Displays > Arrangement, drag the thin grey bar (representing the menu bar) from the box representing the current display with the dock to the box to the other display's box. Bar in bottom ...


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I have found that you can move the app window if you position the mouse over the edge to get the horizontal or vertical resize arrows. The trick is to move the mouse horizontally if you have the vertical resize arrows or vertically if you have the horizontal resize arrows. It is a bit tricky, but it works on Mavericks 10.9.x This trick does not work with ...


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I have a Dell P2815Q monitor (nearly 4K) connected to my MacBookPro Early 2011 running 10.9.4 (13E28)



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