IMac :: How To Keep Display Sleeping While Keeping External Display Active?
Jan 23, 2008
Just wondering if anyone could help me figure this out.
I have my 40" flat screen plugged into my imac via VGA cable to mirror the image.
I'm just trying to have the imac display sleep while I play a movie full screen through the external TV.
I've tried two different ways but both have failed.
1-I set up a hot corner in the imac to sleep display but this results in both the display and the TV sleeping.
2-I just set the power settings to sleep after 1 minute. This works but then If a movie is playing the computer won't go to sleep.
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Dec 6, 2009
I've just recently noticed that my iMac display won't go to sleep, despite my energy settings should turn it off after 5 minutes of inactivity. The only difference I can think of is that instead of my Mighty Mouse, I now use a Microsoft standard USB mouse. Is the Microsoft mouse somehow keeping the iMac "active"? What else could just suddenly stop my iMac display from turning off automatically?
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Aug 9, 2010
If you want to use the external display as the main display, and close the macbook pro is it possible that the macbook pro might overheat, or have negative impacts on the machine for keeping it closed while in use?
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Dec 1, 2014
I have a new 27" iMac retina display. Is there any way to use it as an external display (since it does not support Target Display Mode)?
Info:
iMac with Retina 5K display, OS X Yosemite 10.10.1
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Jan 13, 2010
I just purchased a 23" monitor to replace my iMacs 17" display (since it has a nasty crack in one of the corners). I hooked it up fine and all, but the displays are linked, allowing me to hover the mouse to the iMac's display which I find annoying most of the time.
Is there a way to make the iMac display zone out and just use the external by itself?
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Nov 10, 2009
I'm interested in the new iMac but could not work with a glossy display. Can anyone share their experiences of using the iMac with an external display? In one respect it seems like a waste to have two monitors but the base model costs little more than the maxed out Mini and seems like the better option.
I would be interested in seeing photos of any setups featuring the iMac and an external display.
Also, is there a way to turn off the iMac display when using an external display?
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Aug 12, 2008
am having a problem with the displays going to sleep, they go to sleep but wake up on their own as soon after they sleep, I mean they stay asleep for less than a second , what could it be? this started a week ago, worked fine before.
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Jan 22, 2009
I was trawling through the sticky's a few weeks back and i noticed their was a app to stop the display from sleeping when watching a film but i cant for the life of me find it now.
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Sep 4, 2014
My external display (HP w2207) seems to conflict with my MacBook Pro (15 inch Retina display, early 2013) since I upgraded MacBook OS to 10.9.4.The external display works at initial boot of Mac but does not work after OS sleeps and I attempt to awaken, and while the external display is not waking, the Retina display flashes through different screen views, which only partially reflect my normal screen, or do not reflect my normal screen at all.
Info:
OS X Mavericks (10.9.4)
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May 22, 2007
For the past few months i have been using an external display hooked up to my 12" powerbook g4. I have had it on a dual display mode so no mirroring. Recently i would open the laptop lid waking it from being in sleep mode and my internal display will not turn on. The apply system profiler does not even recognize that the internal display exists. My external display works fine and has always been set as the main display. If i go to detect displays nothign happens. I have tried restarting the computer, instering system disks, unplugging the external and nothing has worked. I simply cannot get my internal screen to fire back up. When i used to unplug my external display the internal display would switch back to being the main display and everything would be fine. Now i cannot get the internal display to function whatsoever. Please try and help me as a need this laptop working and i will be ordering a mac pro soon for use with my external display.
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Dec 12, 2008
I have a Macbook Air, and i just picked up the new LED ACD from my local apple store. Since im new to mac, is there a way to either close my Air and not have it go to sleep? I want to use the external display as the primary display with my laptop closed, any ideas?
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Apr 25, 2009
I am about to buy a new 24" iMac. I currently have a Dell 2408WFP 1920*1200 display which I would like to use as a second display for the iMac.
Which Mini Dislpayport to DVI adapter do I need? Single-Link or Dual-Link?
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Mar 25, 2012
Does anyone have a problem with thier displaying turning off while inuse?
Info:iMac (21.5-inch Mid 2010), Mac OS X (10.6.8)
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Oct 26, 2008
I have a question about using dual displays with my new macbook. The basic issue is this:
1: plug in second display and setup dual monitor support to use the external hi-res display and the macbook's display (no problem here).
2: drag windows to the external display and resize to use (no problems here either).
3. Power down and disconnect the external display.
4. Start up the macbook without the external display and try and open up a program that I was using previously on the external display. The problem is that it is resized and positioned for the external display and is now off the screen of my macbook display and I can't directly get to the title bar to move it or the resize corner to resize it.
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Mar 8, 2008
I have an old Dell CRT I'm using currently with my iBook and I want to know how I can just use the display and close the iBook when at my desk without the computer sleeping. Currently if I try waking the computer with the keyboard or mouse, it wakes up for about five seconds before going back to sleep. Is there any way around this or do i just have to keep the iBook Open?
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Mar 11, 2012
My Macbook Pro (purchased Dec 2010) falls asleep when I am in the middle of using it (typing, clicking, watching a tv show).There will be no display or sound, and it will sleep. Most times it will wake up when I click the touchpad alot or close and reopen the screen. However, sometimes I will need to restart. I am not sure why it is doing this all the sudden. It is happening more and more often. How can I fix it? The AC Adapter is plugged in, battery work normally and I set the energy saver so that it would not sleep when plugged in.
Info:
MacBook Pro, Mac OS X (10.6.8)
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Jun 19, 2012
While using Google Sketchup and several other prgrams concurrently my macbook air cpu heats up substantiall. I like keeping the air "open" to allow for maximum heat disipation but of course this keeps the air screen on while I only want to use my external monitor. Is the only way to turn of the air screen turning down the brightness and using the "Mirror Display" option or is there another setting which alows my to utilize only the external display while the screen is open on the air?
Info:
MacBook Air, Mac OS X (10.7.4)
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Feb 27, 2012
does keeping a high brightness level all the time effect performance or display?
Info:
iMac, Mac OS X (10.4.1), 27"/4GB/2.7GHz/intel core i5
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Dec 24, 2009
The title says it all really... Quite a simple problem that I can't find any answer to!
I've hooked up my 30" Apple Cinema Display to the new iMac 27" and the highest resolution I'm getting as an option is 1280x800... The iMac correctly detects the ACD as a Cinema HD display but limits my resolution. Why oh why?!
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Jul 12, 2009
Is there a way to keep dashboard active all the time? What i mean is, everytime i click on the dashboard icon it shows-up on the screen and the other programs running on the background just fades. And if i switch to any other programs/applications dashboard does not show-up anymore.
To be more concise, i would like to have it at my screen all the time without having to click it (of course i do have to click for the first time ). Is it possible?
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Sep 22, 2009
i am having a weird problem with my brand new imac.. I bought it custom made last friday with ATI Radeon HD 4850. Now here is my issue.. Every time i boot up it takes a while for the screen to turn on. I hear the start up sound and HDD working and all that but screen stays off for another 5+ sec. before finally going grey before apple logo comes up. Now I thought this isn't an issue since i did order it with ATI card instead of standard Nvidia. Figured different cards react differently. However, later on after playing a game for few hours and doing a restart it would do the same thing, but the screen would never turn on. Just stay black forever until i shut it down and wait a minute or two then power it back on. So to clear this up. What happens is, i push power button, start up sound happens, then black.... like it is off, not even the back light. This only happens every few days, not every restart.. I reset SMC, PRAM, ran hardware test, spoke with apple on phone, went to genius bar, and after all that and being passed around now the apple engineers are looking into my problem and i am expecting a call back from them. So i guess my question is, is there anyone else with this setup (ATI Radion) that has this issue?
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Jul 6, 2008
In the near future I will be purchasing a 24" iMac and I wanted to now if I could display TV programs or video game consoles on it using S-video (or another type of cable)like a normal Television screen.
I want to know because I also plan on purchasing a PS3 and want to display it on the iMac's beautiful 1080p screen!
Please tell me if there is any way so I can purchase the needed accessories in advance.
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Nov 18, 2009
Hi this is my first time doing this, but I want to connect my iMac to my LCD TV via HDMI, but my computer only has a mini dvi port on the back. What cables do I need and is my iMac capable of outputting to 1080p?
I have the baseline late 2006 iMac (5,1) with ati x1600 card and my current display resolution is 1440x900.
Will I have to have both monitors on or can I just have the LCD TV be on and the iMac built in monitor be off?
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Jul 12, 2010
Purchased a brand new 27" i7 imac a few weeks ago, display is awesome!!! I was using my old 28" LCD monitor from my PC and running dual displays on the iMac. The 28" LCD monitor annoyed me a bit because i could not get the same color/crispness/brightness that i got from the iMac. ( also it has a Matt screen and i am more into the glossy screens ) So i found a used 24" cinema display locally. Paid 600.00 and it came with 2 yrs of AppleCare. It is only 7 months old ( still have 5 months under orignal warranty ) Got home, hooked it up and it had a "hint" of yellowness to it, It wasn't a exact image of my iMacs display...I tried to calibrate it also, but it still had just a HINT of yellowness....Nothing at all major, but enough for me to be annoyed with it.
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Jul 3, 2006
I want to take my old iMac G4 and use it as an external display for my MBP. Is this possible? Has anyone done this?
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Apr 16, 2009
I've found that my 24" display just isn't big enough for the currents applications I'm using. Could I use the following to attach either a bigger monitor or my projector to the iMac?
[URL]
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Feb 20, 2010
Is this even possible?
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Mar 23, 2012
I bought iMac 27" 3.4 GHz quad core i7 ( with thunderbolt) , how can i use this iMac as external display of a PC with VGA only ?
Info:
iMac (27-inch Mid 2011), iOS 5.1
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May 28, 2012
I'm trying to using my iMac wireless keyboad for my macbook pro while my iMac is in external display mode but I can't get the keyboad to connect. I've tried disconnecting the wireless keyboard from my iMac but it won't go into target display mode without the keyboad. Can I used my iMac wireless keyboard with my Macbook pro while my iMac is being used as an external display?
Info:
MacBook Pro (15-inch Late 2011), Mac OS X (10.7.4), Main Computer
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Mar 25, 2012
Ever since I reformatted my Mac a few weeks ago, I've had some interesting new problems. I've been told for some of them that it is because before my reformat, my Mac was updated from Snow Leopard, and carried over some stuff into Lion.
This problem involves iTunes 10.6 and streaming to a second-generation Apple TV. (The 720p version, but running iOS 5 that came out with the new 1080p Apple TV) The problem involves my Mac going to sleep. I can fix the problem, but it works differently than it used to: Before, my Mac went to sleep after three hours of inactivity; if my iTunes library was being accessed by my AppleTV, iPhone, or iPad using Home Sharing, it would never sleep as long as it was being accessed remotely. Now, however, it will still sleep if it is being accessed, which causes problems since my Mac is on the other end of the house from the Apple TV, and I often run it for more than three hours when listening to music as ambiance or watching a television/movie marathon from my iTunes Library.
I can set my Mac to never sleep, but I would prefer it would still sleep after the three hours -- assuming it wouldn't sleep while accessing it from Home Sharing.
Info:
Mac mini, Mac OS X (10.7.3), Mac mini 2010 with OS X Lion
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