MacBook Pro :: External Display - Monitor Doesn't Sleep Properly

Jun 25, 2012

Have a brand new MBP 13" using Thunderbolt-DVI adapter with my old Dell 2405 LCD. Have an interesting scenario ... when the display goes to "sleep" there is still some type of signal coming out of the display port.  The monitor will stay on and just blink "NO SIGNAL DETECTED ON INPUT 2".  But the monitor actually still stays on.When I put the entire laptop to sleep them the monitor will properly power down to sleep mode. 

I don't think its the monitor because I've used this monitor with a number of different machines and graphics cards, in every scenario when I had the display set to sleep it powered off just fine.   

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MacBook Air :: Doesn't Detect External Monitor Connected Through Mini Display Port To HDMI Adapter

Sep 8, 2014

I bought a MBA 13" last month and now I'm trying to connect an external monitor through a Mini Display Port-to-HDMI adapter and most of the times the display shows a message "No signal detected"...

I've tried all the possible combinations between the MAC and the Monitor but it would seem a random matter.

MacBook Air (13-inch Mid 2012), Mavericks 10.9.4

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Hardware :: U2410 Monitor With MBP - Wouldn't Sleep Properly

Nov 1, 2009

I just bought a Dell U2410 to use as an external monitor (connected with DVI) with my MBP. After initial problems getting the best calibration setup I'm now very happy with it except for one annoyance. The problem: When the MBP puts its display to sleep the Dell monitor goes into sleep mode and then immediately wakes up and then goes back into sleep mode, cycling like this indefinitely.

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MacBook :: Using External Monitor With New MB (2.4GHz)/monitor Sleep?

Oct 16, 2008

I picked up a new MacBook yesterday and I noticed a weird issue when coming out of "monitor sleep" mode, not regular sleep mode.

When I move the mouse, the external monitor shows what you see in the picture, kinda like a TV with no signal. The MacBook screen works fine so what I just do is unplug and re-plug in the DVI plug and everything is good again.

My 24 inch Dell monitor worked fine with my M1330 and other computers so I know it's not that. Does anyone have the same issue or maybe give me some light on this?

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MacBook Pro :: Why Won't It Startup Properly Without External Monitor And Keyboard

Mar 14, 2012

If I connect a external monitor and keyboard to my late 2011 Macbook Pro (running Lion) it starts up just fine. But if I try to start it up without these (or any other devices) attached, I get no display on the internal screen and the internal keyboard is ignored (the caps lock light doesn't light up when the key is pressed). However, I don't think it's a hardware issue, as a PRAM reset seems to work (I get the second chime) indicating that the keyboard is OK. And I get a second or so of grey screen before the screen goes black. I've tried resetting my SMC and my PRAM. The latter seemed to fix the problem once - but then it came back, and won't go away again this time. I've also tried starting in safe, single user, and verbose mode, but none of these seem to make any difference. I've been having some issues installing Windows (under both BootCamp and Parallels) but wouldn't have thought that these were related.

MacBook Pro, Mac OS X (10.7.3), 2.5 GHz i7 4GB 750GB 7200RPM Matte

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OS X :: Can't Get MacBook To Connect Properly To Samsung External Monitor XL2370

Apr 26, 2010

I used to have a mac Mini that connected so effortlessly to the monitor and allowed the full resolution (1920x1080). But I'm trying to do that with my MacBook (as I recently sold my Mini) and I'm unable to get it to do what I want to. I have Snow Leopard. It would not allow me to do anything until I updated the OS. The monitor was not recognized at all. Except I noticed when I plugged it in, the macbook screen would I figure it's recognizing something. But in display settings, detect display wouldn't show anything, neither would restarting. That is, until I updated Snow Leopard.... Anyone know why this might be? And now that I've been able to get something on the display, I'm still not at all satisfied. The resolution is terrible. It will not allow me to choose anything other than the resolution on my macbook screen, but over 23" it just looks terrible. Not only that, but the Macbook screen stays on. I want the mb screen to go off, and full resolution be on the external monitor. I can choose another option for an extended desktop but that's just ridiculous. I have no desire for anything like that.

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Intel Mac :: A Website Doesn't Display Properly On It

May 27, 2012

I own both an iMac and a MacBook.Lately I've been trying to use [URL] and while the website does work, it displays totally wrong on my iMac ?I looked at all I could think of (not a newbie, but not savvy enough to go look in the coding to look for errors there).The one section from the site which displays correctly is one without a menu on both right and left. It's a blog. Here's a clue, I guess. I tried with both Safari 5.1.6 and Firefox 13.0, with the exact same result. But on my Macbook it displays perfect! I am using Firefox 12.0 on it. So I downgraded to Firefox 12.0 on the iMac... no success.Of course I also cleared the cache, closed the browser, and the computer... no luck.I then removed all plugins, since it was the only remaining difference...I thought it could be a difference in display... altough I couldn't see how... I changed it from 1920x1080 to the ones similar to my Macbook's (1280x1024 and 1280x720)... Of course it was the same, just more blurry. It doesn't make sense and I hate it when it doesn't make sense!Of course I hate it even more that I can't use that website on my iMac!!! (or with a lot of hassle). 

iMac, Mac OS X (10.7), 21in.

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MacBook Pro :: Detects An External Monitor But No Display On The Monitor?

Aug 5, 2009

As said, my current set up is an HDMI - DVI cable (HDMI to monitor and DVI to adapter) and my DVI - mini DisplayPort adapter, everything is connected fine but when I turn on the monitor, it says cable not found... and nothing is displayed on the screen but on the Macbook side of things, it sees the monitor is connected (I can extend the screen and leave the screen) but other than that, it appears I cannot get an image on the monitor, pressing every button on the monitor does not work either.

Any other information that may seem necessary, let me know. I tried clearing my PRAM and clearing the power and such but nothing seems to work.

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MacBook Pro :: Won't Start, The Monitor Doesn't Come On, And The Sleep Light Blinks Constantly?

May 26, 2012

My computer won't start, the monitor dosn't come on, and the sleep light blinks constantly.

Pro, Mac OS X (10.6.8)

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Mac :: Macbook Pro On External Monitor Will Not Sleep On Its Own

Jan 5, 2010

have a (late 2008) unibody Macbook Pro connected to an external monitor via mini-displayport to HDMI. The MBP is closed and the external monitor is my only display. I have a USB hub connected to the MBP which is connected to a mouse, keyboard, external HDD, etc.My problem is, the computer won't go to sleep unless I manually select the option from the menu. In the Energy Saver settings, the monitor and computer are both set to go to sleep at 15 and 20 minutes, respectively, and the monitor goes to sleep just fine. The computer never does, as indicated by the solid white indicator light on the front of the MBP and the fact that it stays warm after not being used for hours.

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OS X :: External Monitor Not Working Properly With Snow Leopard

Jan 17, 2010

Recently I installed the Snow Leopard OS on my Macbook Pro, previously I had 10.5 installed. However, now when I connect my Macbook to my flatscreen TV (Panasonic Plasma), using a mini display port cable to an HDMI cable, there's a black border around the edges of the picture. Before the Snow Leopard upgrade I was able to view the entire screen area of the Plasma TV, without any borders. The only thing I've done differently since then is install Snow Leopard. Does anyone know how I can fill the screen with image without using the zoom option on the TV screen, as the zoom cuts off some image at the top and bottom?

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MacBook Pro :: External Monitor And Closing The Lid Without Going To Sleep?

May 5, 2010

Is there a function to enable the external monitor to work with the mbp lid closed? Any way around this without third party software??? I enabled mirroring but when I close the lid, the mbp goes to sleep.

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MacBook :: External Monitor - How To Stop From Going To Sleep

Jun 28, 2010

i've been hooking my macbook up to my hdtv to watch hulu, movies etc (using mirroring), but i can never snap my macbook shut or it goes to sleep.

how do i stop that aside from plugging in an external keboard?

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MacBook Pro :: Cannot Wake From Sleep If Attached To External Monitor

Mar 25, 2012

This started recently and is quite annoying.  Like the title says, if I put my computer to sleep via apple menu/sleep while it is attached to my external monitor the computer will not "wake up".  When I try to wake up the computer the sleep indicator stops pulsing and I can hear the hard drive start spinning.  As a result I must force shut down the computer by holding the power button.  The computer is fully charged so it is not a low battery issue.  The external monitor is an 20" Apple Cinema Display, it is attached via Apple's DVI connector.  

Unplugging the monitor dongle and replugging it in do not work.  Pressing any assortment of keys does not bring the display back up.  

I've tried resetting PRAM, disk permissions, and verifying the disk. 

MacBook Pro, Mac OS X (10.7.3)

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OS X V10.7 Lion :: Monitor Doesn't Sleep Anymore And Gets Woken Up Every 45 Secs

Feb 5, 2012

I have been having some issues since I updated to 10.7.3: My monitor does not sleep anymore and gets woken up every 45 secs. In this time I have hundreds of the following messages: 05.02.12 12:42:20,812 loginwindow: resume called when there was already a timer..Any idea what I can do to get this to work the way it used to ??? This is very very annoying and consumes energy for nothing.

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MacBook Pro :: Possible To Connect To External Monitor / Use It When Closed Without Computer Going Into Sleep Mode

Jun 4, 2014

I am currently am using a MacBook Pro mid 2007 and was wondering it is possible to connect it to an external monitor and if so use it when closed without the comp going into sleep mode.

MacBook Pro

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MacBook :: How To Turn Off The Display With External Monitor

Feb 18, 2009

I know that the web have a lot of tips similar to this that i will ask, but i couldn't find no one exactly with what i want

I bought a new monitor, and mini-dvi adapter, an external keyboard and mouse to plug on my macbook

I would like to know how to turn off the macbook display without having to close it. I want to know that because if i don't close the macbook, both displays are on. If i close the macbook, the computer goes to sleep and then i press some keys on keyboard and the mac wake. In that point, if i open my macbook the display is turned off like i want. But i don't want to have to close the macbook all the time, and i don't want to leave the macbook closed because closed the temperature goes high.

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MacBook Pro :: External Monitor Display Blurry

Nov 17, 2009

When I hook up an external monitor to the DVI output, and use both the macbook screen, and the external, the display on the external is blurry, and not very sharp. However, when I close the macbook, and run it in clamshell mode, the external becomes very clear, and crisp (like it should). I never use dual monitors, so this really isn't a problem, but want to know if its normal. 2007 Macbook Pro, 2.4, 4 gig ram. Gforce 8600M GT

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MacBook :: Dell External Monitor And Get Display?

Apr 9, 2010

The text looks a lot different from the Macbook's display. I got it to 1080p and stuff - and yes, it's showing the full 1080p. But how do I get the text to look more like the Mac's text? My Macbook display looks so much sharper. The text on the Dell looks very not isn't thick, etc.

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Hardware :: USB Ports On LED Cinema Display - Monitor Sleep

Jan 20, 2009

I just got a new MacBook Pro and 24-inch LED Cinema Display. I was planning on using one of the USB ports on the back of the display to connect a 1 Tb WD My Book drive as Time Machine backup. I've managed the first backup and everything seemed to be working fine, but occasionally when I wake the computer from sleeping I get an error saying that I disconnected my drive without ejecting it. Nothing has been disconnected, so I'm worried that the USB ports don't stay powered on when monitor/computer sleep, or that there is some other issue using a USB peripheral that is for all intents and purposes plugged into another USB peripheral. Has anyone else had these issues? I'd rather keep things connected the way they are right now- I have 4-5 other external drives I need to access on a regular basis, so going directly into the USB on my MacBook isn't an appealing option.

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MacBook Pro :: Prevent From Going To Sleep When Using External Display?

Dec 4, 2014

When trying to use using an external display my Macbook pro goes to sleep immetetly upon closing it, is there a way to use it with the MacBook closed?

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MacBook Pro :: Making External Monitor Display Primary?

Oct 10, 2007

I'm thinking about replacing my 24" iMac with a 15" MacBook Pro, however I'd like to keep my 20" dell monitor and use it as the primary display for the MacBook Pro, is that possible? By primary I mean having the dock and everything else on it, with the built-in display being like an external display that I can use for extra space. Also, would the same be possible at all with my iMac?

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MacBook Pro :: Won't Find Display Info / Using An External Monitor

Jul 2, 2009

I plan to get a 13" 2.26ghz Macbook Pro, and I have a 20" external monitor with a 1680, 1050 resolution.

First thing, I've barely used OS X, let alone with an external monitor. How well does OS X handle it? Is it pretty simple, and can I set separate backgrounds for each display?

Secondly, will the GPU handle it alright, or will it be sluggish when I hook up the external? I'll mostly be using the 20" to do Photoshop work, with occasional video editing (though I have other computers available to do rendering on.)

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MacBook Pro :: External Monitor Attached And Display Closed

Nov 30, 2009

I typed Mac Help about "to operate the portable computer with an external monitor attached and the display closed. When I close the display of my Mac Book or MacBookPro, the external monitor such as my 50" Plasma monitor or video projector would go black. I read the Help and it said and required the USB Mouse and Keyboard to close the Macbook display and put computer sleep. My question is will the Apple blue tooth or wireless keyboard and mice will work with out using the USB? Has any one try that? I am not sure if I should buy wired or wireless to operate this.

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MacBook Pro :: HDTV Versus LCD Display As External Monitor?

Mar 9, 2010

I'm looking to have a display hookup in my room for my Macbook Pro 15". I can't decide if i should get a 26" 720p HDTV with a pc input or a large lcd desktop display with a cable input to watch tv.

What are the pros/cons? Has anyone tried/preferred either? Any recommended monitors or hdtvs?

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MacBook Pro :: Can Not Display External Monitor Under Bootcamp Windows XP?

May 11, 2010

I have got my new uMBP i7. It is gorgeous, super happy with it . Because I need to run several programs under Windows XP, I have installed Windows XP under Bootcamp. I used Winclone to migrate bootcamp partition from my old MBP to the i7.My problem is that when I linked my external monitor (20 inch ViewSonic) to uMBP using the Minidisplay-to-DIV adaptor from Apple, there is no display on my external monitor. I can set the external monitor as extension of main monitor under "Setting", but after the windows Ding/Done sound, there is nothing on my external monitor. Does anyone have experiences about fixing this problem?

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MacBook Pro :: Screen Display On DVI External Monitor Does Not Match

Jul 15, 2010

I am attempting to use an external DVI monitor using the mini port port and the mini port DVI adapter sold by apple. However the screen display on the external monitor does not match the Mac book display. All I get is a color Mac opening screen with no icons.apparently there is more to getting an external monitor going then just plugging it in.

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Mac :: My IPhone Keeps Brining My Macbook & External Display Out Of Sleep?

Nov 24, 2009

I did search Mroogle to no avail..But anywaysIf I shut my MBP, my external DELL 2005FPW goes to sleep, but if I take my iPhone out of the USB stand connected to the MBP, it comes out of sleep and all info (log in, etc) is shown on my external display nad I can't obviously make it go to sleep unless I log in, then sleep the machin

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MacBook Pro :: Necessary To Remove External Display In Sleep Mode?

Jun 11, 2010

I have just seen another thread here which links to the following Apple KB article about running in clamshell mode. [URL]. It says something about putting your laptop to sleep before removing the external monitor. I am not running in clamshell mode but I have a dual screen setup using a Mini DisplayPort to VGA adapter. When I take my MBP (2010 - see sig) off my desk, do I need to put it to sleep to remove the Mini DisplayPort connector, and, if so, does anyone know why this is necessary?

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OS X :: Unable To Show 10.6 Install On External Monitor / Grey Box On External Display With Black Bar

Feb 27, 2009

I have a Macbook Pro 2.16 Core Duo, and I'm wanting to install 10.6, but about a year ago, I cracked my screen to the point that I cannot make anything out on it, and haven't replaced it. Instead, I have just been using it in clamshell mode, which has worked out fine so far. My problem is that I cannot get the 10.6 install to show up on my external monitor.

I searched around, and could only find one other similar thread that just ended with the author putting it in clamshell and having it work fine. When I boot to the install and close the screen, I just get a grey box on my external display with a black bar on either side of it. I can't seem to find any other resources, so I'm not entirely sure what to do at this point. Any help would be greatly appreciated.

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