MacBook Pro :: Won't Detect Monitor - Screen Goes Blue For A Second?

Oct 9, 2009

I have a 13" MBP and it won't detect my external display. It works fine on my sister's whitebook using, but won't detect at all on the MBP. I've went to "detect displays" under system preferences, played around with the cable, and made sure the monitor is on. It work's flawlessly on my sisters. What's wrong? Any suggestion on what I should do? I'm losing my mind right now. The screen on the MBP goes blue for a sec when the external display is connected, but then just goes back to it's original desktop.

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OS X :: Blue Screen With Dual Monitor / MBP Updated From 10.5.2 To 10.5.4

Jul 6, 2008

My MBP was updated from 10.5.2 to 10.5.4 (combined update) this morning and, after the installation finished, it rebooted into a blue screen. I restarted it several times and always went into blue screen.

Now, the interesting part is that this is not the "blue screen after install" problem others are experiencing. If I disconnect the external monitor during restart and wait for OS X to start everything works fine. After OS X starts properly I can even reconnect the external monitor and it works fine. In fact I am writing this post from my MBP using the external monitor right now.

Since some document on the Apple Support website was suggesting to remove the file ApplicationEnhancer.bundle in System/Library/SystemConfiguration when experiencing blue screens after the install of 10.5.4, I did look in that folder for that file but it's not there...

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MacBook Pro :: How To Detect External Monitor Via HDMI

Jun 29, 2014

This is my first Mac. I cannot get it to detect my external display:  It is an ASUS PA248Q, manufactured Aug 2012.

The HDMI cable according to my Amazon history is at least 1.3c from 2010,  "Fanatic Digital Imperial Series Gold-Plated HDMI Cable (6 feet)". It works with perfectly connecting an AmazonTV box to an old Samsung TV, with vivid clarity, unlike our cableTV signal.

Just in case, I have a new HDMI cable on order, which claims to be of newest standards. The Macbook Pro Retina (late 2013) has the standard Intel Iris from the Haswell chips, as well as Nvidia GT 750M, the latter which I don't think has been used yet.

The ASUS display says:  HDMI NO SIGNAL. 

I have tried shutting them down and replugging the cable.  I don't know what the ideal order is.  The Macbook Pro is plugged into AC power, as suggested.

In System Preferences>Display, I press the Option key to select "Detect Displays" option (seriously unintuitive). 

I have also tried resetting the NVRAM:

I shut the machine down.  Pressed the power button, then quickly held the quadruplet:  Option-Command-P-R  (a double handful) and waited for the machine to chime a 2nd time.  Tried to detect external display no luck. 

Next, I reset the SMC:

I shut the machine down.  Then I pressed Shift-Control-Option-Power   for about 5 to 10s.  Then I turned on the machine normally. NVRAM & SMC steps were from an old youtube video, as the instructions I had did not explain how to do so clearly.

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Intel Mac :: 27 Blue Strips, After Loading Blue Screen Or Load Of Blue Dots

Mar 29, 2012

I have iMac 27 and screen problem on start up i have blue vertical lines, when it start i have a lot of blue dots and nothing else. when I connect outside monitor its showing the same.

Just installed lion and still the same problem when it starts blue dots, when startup in safe mode loads of blue lines and dots on the screen.

Info:
iMovie (iOS), Mac OS X (10.7.3)

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MacBook Pro :: Mini Displayport Can't Detect External Monitor

May 28, 2012

I own a MBP 13 that I wish to connect with my Acer external mobitor. I bought a miniDisplayport to HDMI [male] cable for this purpose. Now the problem I am facing is that even though my 40" Samsung TV detects the MBP and works as an extended monitor, the MBP fails to detect the Acer monitor. However, I currently use the Acer monitor with my Mac Mini, Tata Sky+ set top box and also my Playstation 3

Info:MacBookPro, Mac OS X (10.7.4)

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MacBook :: Screen Goes Blue While Using / Diffrent Blue Colors Appear On Screen?

Sep 17, 2010

while i am using my macbook the screen will suddenly go blue and flash between different blue colors like it is trying to work. sometimes it comes back on but most of the time it stays like that. I have to force shut down with the button and then restart...about half the time it is still flashing blue after the restart and if it does work, it goes blue eventually.

dont know if its a problem with the screen or what because the computer continues to work...if there is a movie on, you can here it in the background and the screen just flashes.

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MacBook Pro :: Mid 09 Screen Blue - Dark / Deep Blue Always Look Like Purple Colour

Jan 1, 2010

I just got a new mid 09 macbook pro no matter how I calibrate the screen. the dark/deep blue will always look like purple colour.

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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.

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

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Hardware :: System Does Not Detect The Monitor In Display Preferences

Aug 23, 2009

a mini display port. I purchased the mini display port to DVI adapter to hook my computer up to a Viewsonic vx2235wm 22" screen. I plug it in and get nothing. I've read on the apple support site that some people with older mac mini's and MacBook Pro's can hook it up no problem. But for me, my monitor is getting no signal and my MacBook Pro doesn't detect the monitor in the Display Preferences.

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Intel Mac :: It Will Not Detect External Monitor After Recent Update

Apr 10, 2012

I have a VGA monitor plugged in to my imac using the VGA adapter to the mini-DVI.  All was working well. Since I updated over the weekend, the computer will not detect the monitor. 

Info:
iMac, Mac OS X (10.6.8), VGA Adapter

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Intel Mac :: Connect 17" Macbook Pro As External Monitor To 24" But Won't Detect Displays

Apr 7, 2012

I'm using a mini display port to dvi adapter and dvi cable. 17" macbook pro is several years old and software is up to date.

the first picture is from the imac, the second is from the laptop.

Info:
iMac, Mac OS X (10.6.7)

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MacBook Pro :: Every Letter With Red Or Blue Tint On External Monitor

Mar 23, 2010

I noticed that almost every letter has a red or blue tint on my external monitor, like behind it, as a shadow. I am connected to dvi. If I use the dvi to vga converter. It gets reduced. I even tried on a new dell monitor and it does the same thing! Is this normal? Could it be my videocard that is beginning to be defective?

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MacBook :: Screen Not Working Fine / Blue Screen Appears And Then Everything Gets Dark

Aug 2, 2010

I have a problem with my MacBook screen. Everytime I try to turn on the MacBook, the blue screen appears for a second and then everything gets dark (but I can see that the computer turned on normally, it's just the screen that gets almost black, without light). Sometimes only the right side of the screen is blue and then gets dark just like the left one. I was looking for the problem and I perceived that the left side seems to be loose and I can't fix it. What should I do?

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MacBook Pro :: Grey Screen No Apple Followed By Blue Screen With Vertical Lines?

Nov 30, 2014

grey screen no apple followed by blue screen with vertical lines. Graphics and logic board replaced <6 months ago. What to do? I held down shift, it gets HOT HOT and makes noises. (for safety mode) followed by a blank grey screen and blue screen. Then tried the other way (I think  it's command alt delete? I don't remember) and it turned from grey (no apple symbol) to blue blank. Then third time, grey followed by blue with vertical lines, not blocky clear lines that you can see if you are close to it. 

Info:
MacBook Pro, OS Lion

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OS X :: MacBook Won't Start Beyond Blue Screen

Oct 4, 2008

I've had a MacBook for about four months, completely standard version, no modifications, no nothing. It's been working perfectly. I've the latest version of Leopard and any other software update that comes with. Today I've been working on setting up a new user account entitled "Work" - for obvious purposes. I've copied my regular account's home folder as well as applications and such to make "Work" as much of a copy of my regular account as possible - let's call that account "Me".

And so I've mostly been browsing around "Work" trying to give it the same access to files as "Me" has - "Me" is an administrator, "Work" is standard - by changing access and privileges. I had some problems getting "Work" to save - when I would log out and then log in again, "Work" would have lost the preferences, e.g. Stacks and Dock settings. I also couldn't change the desktop picture for whatever reason.

So then I was going to log out "Work" to see if it still had the saving problem, and it lagged behind a lot, so I did the emergency-turn-off-by-holding-down-power-button-that-you're-not-supposed-to-do thing. And then when I tried to restart, it wouldn't............

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OS X :: MacBook Just Stuck On Blue Screen?

Oct 3, 2009

I'm using Macbook Pro Unibody (late 2008). 2.4GHz, 2GB Ram. Mac OS X. So I'm in the library right now and tried to start my computer, and it is just stuck on the blue screen. It worked fine like an hour ago, I don't know what happened. So I hear the chime, and the white screen with apple logo. And then, blue screen and I see that little circle thing going around and around on and off, but nothing. I do hear the fan and hardware. I tried to do PRAM reset, but it doesn't work? I tried to look for other posts with similar symptoms, but couldn't find anything.

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MacBook :: Boots To Blue Screen Only

Jul 1, 2010

A few days ago my macbook froze, when I did a hard reboot it boots to bluescreen. I've even left it up overnight just in case it was talking awhile.

Here is what I've tried so far:
-boot into safemode, holding in shift does nothing.
-Tried to run disk utility, it said something like it couldn't be done (forgot the exact message)
-reinstall the OS from cd, but holding in c causes it to reboot.
-holding option and clicking the cd to boot from causes a reboot also
-command-option-shift-delete does nothing
-Gone into single user mode done the fsck thing, also tried this [URL]

Starting to think the HDD is shot. Just noticed an error when I type in /sbin/fsck -fy it says "Incorrect block count for file pcscd.pub it should be 16 instead of 17. Not sure if that means anything. Was able to run disk utility now, no errors were found however it still will only boot to blue screen.

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MacBook Pro :: Its Frozen On Blue Screen

Mar 10, 2012

The mail program froze and I forced quit and reset the pc. Now all it does is reboot on a blue screen and the mail keeps opening up.  Im running the os x 10.6.8 software.

Info:MacBookPro, Mac OS X (10.6.8)

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MacBook Pro :: Why Is There A Blue Line On Screen

Mar 14, 2012

why is there a blue line on my screen?

Info:
MacBook Pro, Mac OS X (10.7.3)

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MacBook :: It Won't Go Past Blue Screen

Mar 28, 2012

My MacBook pro froze so I turned it off.Now when I turn it on it goes to the grey apple screen then stops at a plain blue screen with the mouse up but nothing else.

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MacBook Pro :: Blue Screen On Startup

Apr 3, 2012

After updating the mac os and other applications that displayed in the update software notification, some of my apps wouldn’t open or start up. The icon would bounce in the sidebar like it was trying to open but then a crash report would display. Then last night, I started up the computer to find that it loaded the blue screen of death. I tried to load in safe user mode, but it only loads the different background, but no apps or finder displays. I also tried to load the OS disk that was provided at the time of purchase, but am not sure if i am doing that correctly. I can't seem to get past the blue screen.

Info:
MacBook Pro (13-inch Mid 2010), Mac OS X (10.6.8)

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MacBook Pro :: Blue Screen On Startup?

Apr 18, 2012

I have MacBook Pro Late 2011.

I don't know if it's a problem or it's a normal. But i've noticed that when I boot up the macbook, just before the login screen appears, i can see the blue screen for few seconds. Must there be a blue screen? 

Info:
MacBook Pro, Mac OS X (10.7.3), 15-inch: 2.2 GHz

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MacBook Air :: Has A Blue Screen On Start Up

Apr 24, 2012

My macbook air freezes on a blue screen on startup. I can see the cursor, but nothing else happens. Before this occured, the colourful "spinning wheel" used to come up with almost every application that I ran (for instance when writing documents). 

Info:
MacBook Air

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MacBook Pro :: Startup With Blue Screen?

May 20, 2012

I have been having issues with my two year old MacBook Pro for a while. I have replaced two hard drives and I am now having time out problems. I have just started the computer and all I get is a blue screen.

Info:MacBook Pro (15-inch 2.53 GHz), Mac OS X (10.6.3)

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MacBook Pro :: Screen Goes Blue Every Five Seconds

May 26, 2012

I am facing weird problem of screeing going BLUE every five second. I tried checking Hardware using hardware test DVD and it found no issues. Additionally, I verified both the partitions along with permissions verification using DiskUtility.  But, the problem is not going. Finally, when i tried to reinstall the OS by inserting Mac OS X Install DVD and pressing 'C', the DVD is being rejected.

[code]...

Info:MacBook Pro (13-inch Mid 2009), Mac OS X (10.6.8)

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MacBook Pro :: It Goes To Blue Screen When Turned On

Jun 3, 2012

My MacBook pro goes to blue screen when turned on and stays there nothing seems to work what should I do?

Info:MacBook Pro (15-inch Late 2008)

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MacBook Pro :: Keep Getting Blue Start Up Screen

Jun 6, 2012

I keep getting the blue start up screen. Am I low on ram?

Info:
MacBook Pro

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MacBook Pro :: Screen Keeps Going Blue And/or Blurring?

Jun 26, 2012

My screen keeps going blue and/or blurring. Also iMovie playback is kinda rubbish. What is causing this, I've ridden it out for 8mths cos I need my MacBookPro daily, but I need it sorting now.

Info:
MacBook Pro, Mac OS X (10.6.8)

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MacBook Pro :: Blue Shadow On Screen?

Jul 1, 2012

Is it normal for a blue shadow to appear on the bottom of the screen whenever the background is black? I noticed it when I watch videos or the background is black by that spot. I bought my laptop in Feb. Does it need to be repaired? or would they even repair it? This is my first time owning any Mac computer.

Info:
MacBook
Pro, Mac OS X (10.7.4)

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MacBook Pro :: Won't Start - Screen Is Blue?

Dec 1, 2014

MMy computer won't turn on. Screen is blue. Plugged in

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