MacBook Pro :: Will Not Start After Shutdown - Purple Vertical Lines Flickering On Screen

Jun 3, 2012

I was sitting with my MacBook Pro, when out of no where, purple vertical lines began flickering on the screen. I tried getting them to stop, then eventually just shut down my laptop. When I went to power it up again, it first popped up with the white apple screen and chime, then a gray screen dropped down with the message "You need to restart your computer. Hold down the Power button for several seconds or press the Restart button.".

I tried the Power button option first, but the computer does not come back on. When I press the Power button again, it does the same thing all over again. I do not know where the "Restart button" is, so I haven tried that. I have also tried pulling the battery and restarting, restarting in safe mode by holding the shift key at start up, and trying control-r and control-s functions. None of which worked.

Info:
MacBook Pro, Mac OS X (10.7.4)

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OS X :: Stuck With Vertical Lines Across Screen At Start Up On MacBook

Dec 8, 2009

This is my first time having some serious problems with my first MacBook, and I was hoping someone out there could help me out. This macbook was bought on June 2006 (a white MB) with I believe the 10.4.6 OSX on. I gave it to my dad which is across the world and he called desperate a few days ago saying that the system won't boot up. When the power button is pushed on and the system starts, rings the Apple bell and soon after colorful vertical lines show up across the screen and the system freezes. Here's what I found out from my research on the topic, for some macs of that generation, when the system updates from 10.4.6 to 10.4.7 some video card issue causes this glitch to happen. The solution: zap the PRAM (by holding control + command + p + r when booting the computer.) My dad has tried this approach many times and it doesn't solve it. We also tried booting it with the installation disc and that didn't work. We also tried the safe mode boot and that also didnt work.

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MacBook Pro :: Strange Purple Lines In Pattern On Screen

May 3, 2010

i have had a Macbook Pro which I got in mid 2008 and it just yesterday began doing something strange. After working in Mac OS X for a while I saw that many of the white areas on my screen were filled with purple lines. Most of my pics in my background are outlined with varying colors and I cannot figure out what is going on.

I began to suspect the graphics chip at first, so to test this theory I plugged it into an external display and the problem did not exist there so I concluded that it was not due to the graphics chip. I have a friend who performed some tests and believes that it is a problem in the connection between the monitor and the graphics chip and that certain bits of data just aren't making it through. I thought that this was a feasible problem, but to get a second opinion I took it to the local apple store on my university campus and they looked at it and also concluded that it was not a graphics chip problem, but that I may have to replace the whole display assembly. This was fairly expensive and I cannot afford to do that since time got away from me and I forgot to purchase applecare. (How stupid of me. Aargh!) Anyway, so I was wondering what is believed by the macrumors community to be the best option. I discovered that this problem seemed to happen on a lot of this particular model of macbook pro and that apple offered to replace the graphics chip for free because of it, but since they do not think it is a graphics chip issue, it appears that I am stuck.

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MacBook Pro :: Flickering Lines On Screen

Aug 20, 2014

I have flickering lines on my macbook pro , screenshot doesn't show them up, and I don't know how they got there.

Panicking a little as this laptop is fairly new and expensive.

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Software :: Vertical Lines On Start Up?

Sep 25, 2009

When I start up my screen is filled with a load of bars made up of small vertical lines. After about 20 minutes they seem to stop appearing, although fragments of them remain on the desktop and dock.
It' also runs really slowly at first.

Running OS x 10.5.8

Old G5 tower

Apple Cinema display

I have tried disc utility Repair Disc (booted as a target disc) and Repair Disc Permissions

I have posted a screen grab here (it ain't pretty):[URL]

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MacBook Air :: Flickering Lines Periodically Displaying On Screen

Mar 8, 2012

The screen on my Macbook Air just recently started to periodically display flickering lines. They are multicolored and stretch across the entire screen. Hardware test was ok, and console not reported any issues. MBA is "late 2010". Warranty ended January!

Info:
MacBook Air, Mac OS X (10.7.3)

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IMac (Intel) :: How To Remove Vertical Purple Line On Screen

Dec 8, 2014

I've had this iMac for about 5 years and cannot upgrade to IOS Yosemite. I am on OS X 10.6.8 and have 1 GB of RAM. 

Two days ago I found a vertical purple/pink line on the left side on my screen.

Info:
iMac, Mac OS X (10.6.8), 1 GB of RAM

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MacBook Pro :: Vertical Lines On LCD Screen?

Nov 9, 2009

For the past few days, my screen has been going in and out of being entirely covered by 1px white lines that occasionally flicker blue or something. Like, when I'm typing (as I am now) if the window is positioned one pixel off, the blinking cursor won't appear (and on my black screensaver, it looks more like it's white/light grey because literally every other 1px line is white). Well, this morning it got weird again, but it hasn't gone back to normal!

I have a Mid-2007 Santa Rosa Macbook Pro, 2.4 Ghz Core 2 Duo- LED Screen, backlight works fine and if I turn it completely down ('off') the problem persists. I have Boot Camp installed, and the problem persists when booting into Windows as well.

I looked around and tried a few fixes to no avail (slept the screen, reset the PRAM, messed with the resolution a bit).

I took a screenshot and everything shows up normal. I had to finish a paper I was working on, and the screen was getting unbearable, so I tried plugging it into a mate's external lcd and the image came up completely fine, no vertical lines!

So, what could this be, and what could I do to fix it? Could this be the infamous problem with the Nvidia 8600GT M graphics card- so would I have to get the logic board repaired!? (UGH I hope not) Could it just be a connection issue? I did install a new hard drive, a new stick of memory, and Leopard, but that was months ago! Anything else I might be missing? and I hope this problem isn't too serious!

P.S.-on a side-note, has anybody done the upgrade to the latest firmware for the fans (SMC something)? Should I give that a try (or should I do it anyway, regardless of whether it could help)? When it was released, I heard of some bad experiences, so I stayed away.

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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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MacBook Pro :: Vertical Lines Throughout External Screen

Oct 6, 2010

Hi I'm connecting an external monitor to my macbook pro and am experiencing regular vertical lines throughout the external screen. I've tried DVI-D and VGA. I've tried changing resolutions. I have taken a screen shot of the monitor but this screen shot shows a clear image. Attached is a picture of what it looks like. Hard to spot as taken with my isight. (Ignore the cable hanging down).

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OS X :: Vertical Gray Lines Appear On My Macbook Pro Screen?

Jul 25, 2009

Specs:
2007 MBP, using a clear hard Speck case
15 inch
4mb RAM
160gb HD, 650gb external HD

I've had it sent into Apple once for the horizontal flashing lines, but these are new... it's like a gray vertically striped film covers the whole screen, and unlike the horizontal lines, shaking/hitting the screen does not help.

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MacBook Pro :: Red Vertical Lines For Black Screen?

Mar 13, 2010

My MacBookPro 15" 5.3 worked fine until today, All the blacks (rgb 0,0,0) on the screen become red stripes.

When I boot into Linux or Windows the same problem appears, so it's probably a hardware problem.

I have no expensive adaptor to connect to an external lcd screen, so I don't know yet if the problem is in the mac screen or in the cabling or somewhere else...

Here are 2 screenshots of black squares a drawed in Illustrator, one taken on the mac (cmd + shift + 3)

one taken with a camera (where you can see the red lines)

I want to avoid the MacStore as I want to avoid missing my laptop for a month...

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MacBook Pro :: Apple Logo Comes Up Then Screen Goes To Vertical Lines?

Sep 11, 2010

I replaced my cracked LCD screen on my 17" macbook pro, and upon firing up you hear the chime, and the apple logo comes up just fine. Then after that it goes to horizontal lines, and no image on it. If I plug in an external, it shows up just fine on it, and if I put in the original cracked screen, I can see my desktop and everything as well.

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MacBook Pro :: Half Of MPB Screen Blanking Out With Vertical Lines

Nov 7, 2009

I have a late 2007 2.2ghz MBP. It seems that the video cable is failing, as I often open it up from sleep and get only half an image on the screen. Image capture does not capture this, so I know that it is hardware related. It does not happen on my external monitor.

It is getting more frequent, and has been going on for about a month, The warranty expired in late September (lucky me!)

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MacBook Pro :: 15" Screen Has Vertical Blue Lines?

Jun 10, 2012

I have a Macbook Pro 15" (mid 2010) 2.53GHz Interl Core i5 running OSX Lion 10.7.4. Generally the computer and screen are in good condition and have had no damage. The screen has Vertical blue lines and there is a tint of blue generally. The startup apple grey screen however is perfect, it is only when it enters the login screen that the lines appear. All the colours are off. Other than these lines the computer works perfectly   

The computer was used yesterday (09 June 2012) without a problem for approx 1hour. It was then left for the day indoors on a desk out of direct sunlight. The computer was switched on later that evening and the problem started to appear I have already tried to reset the PRAM and SMC with no affect. 

I also read that it may be a cable problem, however as the startup screen works perfectly i question this.

Info:
MacBook
Pro, Mac OS X (10.7.4)

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MacBook :: Its Display Has Vertical Lines On Bottom Of Screen

Jun 27, 2012

It started out as one line and has increased to 6. Its display has vertical lines on bottom of screen

Info:MacBook

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MacBook Pro :: White Vertical Lines On 2010 13" Screen?

Jul 19, 2010

I've had my MBP for about 2 weeks and yesterday a white vertical line about an inch long appeared on the right edge of the screen.

It went away after a restart, so I thought nothing of it, but now another one has appeared. Picture:

They mostly appear only on the desktop, but occasionally crop up when I'm running apps.

Is this something I can fix or is it a video adapter issue? I have searched and come up with some similar motherboard issues but they are mostly older macs.

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MacBook :: Screen Suddenly Shows Blue And Pink Vertical Lines?

Apr 25, 2012

I am trying to get my MacBook LCD to work right. It happened because one time I was carefully wiping my MacBook screen with a little hand sanitizer and a paper towel. However, later my screen started to show a-lot of weird lines and eventually blue, pink and green tiny vertical lines but it is not completely renderd useless, it is just plain annoying and whenever I have an open window on the screen for a long time and I move it around eventually, it shows an imprint in the background into the screen and even when I restart, shutdown or use Windows in BootCamp it just shows up.  

Info:
MacBook (13-inch Mid 2010), Mac OS X (10.7.3), Serial number: IQ0351EYF5W

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MacBook Pro :: Froze Halfway With Vertical Colored Lines On Half Screen

Sep 1, 2014

today while I was working on my dissertation the screen on my MacBook Pro suddenly froze halfway with colored vertical lines covering the right half of the screen.  The computer is only 1 year and 1 week old. 

Info:
MacBook Pro (15-inch Mid 2012), iOS 7.1.2

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PowerPC :: Flickering Screen - Fuzzy Lines On Ibook G4?

Nov 28, 2006

My brother's ibook (14", 1.33 Ghz, 1.25 GB RAM, 10.3.9) recently developed a problem: when he would open it, the screen would show fuzzy lines for a few seconds before "stabilizing." He tried to live with it, but it got progressively worse. Now, the lines never disappear, and the screen flickers as well.

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IMac :: Screen Has Vertical Lines On It?

Jan 6, 2011

i have an intel based 17" White imac.

it has over the weeks had and increasing number of vertical white lines appearing on the screen.

does any one have any idea of what is causing the problem, and the solution?

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Software :: 27 Vertical Lines On The Screen - How Can I Get Rid Of Them

Aug 1, 2009

Started with 1, now there are 27 vertical lines on the screen - this interferes with photos and is unbelievably annoying. How do I get rid of them?

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Intel Mac :: Vertical Lines Going Through Screen?

Apr 8, 2012

Whenever I watch videos or anything that moves I will see a line going through the video. Its not very visible, But its still there. Some say it could be a virus, others say hardware problems.

Info:
iMac, Mac OS X (10.7.3)

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Intel Mac :: Vertical Lines On Screen?

May 7, 2012

vertical lines on screen?

Info:
iPad 2, iOS 4.3.2, I use QuickOffice &amp; Dropbox

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Intel Mac :: Several Vertical Lines On Screen?

Jun 23, 2012

Vertical lines appearing on screen started with one now have 4 . Is this bad?

Info:
iMac, Mac OS X (10.6.4)

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OS X :: Safari Blank Screen With Vertical Lines?

Sep 16, 2009

After installing Snow Leopard, I noticed that when I select a web page from the Safari startup grid (medium 6 web pages), the screen turns white with many vertical lines. This lasts for approximately 4-5 seconds before the web page loads. Any suggestions on how to fix this problem?

Imac - Processor 3.06 Ghz Intel Core 2 Duo
4 GB Memory
Safari 4.03.
ATI Radeon HD 4850

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Power Mac G5 :: Pink Vertical Lines Appearing On Screen

Dec 31, 2007

I have a G5 about 2 years old. Recently a pale pink vertical line appeared down the screen, another about 2 weeks later and today a third line appeared. They do not affect the screen's visibility, but I wander if anyone else has found a resolution to this minor problem (without having to go out and purchase a replacement.

Information:
G5
Mac OS X (10.4.11)

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PowerPC :: G4 Gray Screen With Faint Vertical Lines

Nov 26, 2007

My problem is a screen that is lit but grey, with vertical lines very faint in the background. when connected to a monitor all is well. I have replaced the screen with a second hand one from ebay and it is exactly the same. what is more likely- both screens are duff or is there something obvious i'm missing. i was given the ibook by a friend replaced the harddrive and gave it to my son and it worked for six weeks perfectly until the display suddenly went never to return.

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OS X :: Developed Two Vertical Parallel Lines In The Centre Of My Screen?

Dec 27, 2009

I have a Mac PowerBook G4 and Yesterday I developed two vertical parallel lines in the centre of my screen. 1 blue the other green just 1mm apart.

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Hardware :: Strange Screen Artifacts - Red Vertical Lines

Oct 25, 2008

I was using Audacity on my mac running 10.4.11, on some seriously large files (85MB mp3s were exported from these original wav files!), when during this these red vertical lines started popping up on my screen; mainly where a window had been moved. These lines haven't gone away and I'm not sure how to fix this problem. I'm stumped! Having repaired permissions and run the Disk Utility from the Install disk, I'm at a total loss. The intro/gray screen, apple logo doesn't have the red lines, but every other screen does.

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