MacBook :: Screen Dims And Brightens Randomly

Jan 13, 2009

My new macbook aluminum's screen has a tendency to gradually dim and then brighten on it's own, randomly. This is off the battery power and not AC adapter. Anyone else's macbook screen do this? This is not the screen dimming to sleep. it is constantly dimming and brightening, even as I type this post.

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MacBook Pro :: Screen Flickering / The Screen Brightness Dims And Then Brightens Very Quickly?

Jun 15, 2009

Has anyone noticed a very slight flicker on their new MBPs? I have a new 13" and, every so often, the screen brightness dims and then brightens very quickly (happens in less than a second).The option for auto-adjusting the screen brightness is off so it's not that particular function.It's most noticeable on all-white backgrounds both on AC and battery power. Hard drive access doesn't seem to coincide with the dimming.

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MacBook :: Screen Dims While Watching Full Screen Video?

Jan 14, 2009

I recently had to erase and install Leopard. I then restored everything from my time-machine backup. The weird thing is, before, when watching streaming videos from the internet, the screen stayed at the same brightness, regardless of whether there was any mouse movement, or touching the keyboard, or anything. Now, if I don't do anything, the computer dims the screen, as if i wasn't watching a video.

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MacBook Air :: Screen Dims A Bit After A While?

Feb 22, 2008

I usually have my Air at full brightness. I notice after a while if I leave it alone the screen dims a bit. If I move the mouse it is slightly dimmer and I have to manually adjust the display back to full brightness. Is there a setting turn this off? I have automatically reduce brightness of display before sleep turned off for both the battery and power adapter setting.

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MacBook Air :: Air Screen Dims When Watching Movies?

Jul 3, 2012

I've just purchased a new macbook air 11.6 in and when watching movies (not in ful screen) the screen dims, Im assuming because of inactivity with keyboard, etc. I don't like to watch all movies in full screen, so how do I change the settings to allow for longer 'inactive' times? Meaning, I don't want the screen to dim after only 5 minutes.

Info:
MacBook Air (11-INCH, MID 2011), iOS 5.1.1

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MacBook Pro :: Screen Dims When Volume Is Increased

Jun 28, 2014

My f1 - f12 keys have seemed to adopt a new function. When i use f12 to increase the volume it will also act like i am pressing f1 and simultaneously dim my screen. When i press f1 to dim my brightness it will also increase my volume. When i press f2 to increase my brightness it will also "press" the tilde key and vise versa. These are only a few examples and it seems that all my f1-f12 buttons have adopted a secondary function. 

15" Macbook Pro Retina running OSX 10.9.3

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MacBook Pro :: Screen Dims Before And At Login When Booting OS X Yosemite 10.10.1

Dec 2, 2014

Am using a Late 2011 MacBook Pro with 480GB SSD. Using Yosemite. When I turn on the power it boots but before and at the login prompt it dims horribly but not all the time. Is there anything I can do to stop this from happening?

Info:
OS X Yosemite (10.10.1)

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OS X :: Screen Dims When Not In Use After One Minute

Feb 12, 2009

My screen dims after no use for about a minute. I have it set to do that after 15 minutes. I minute is too annoying (like if watching a video or something with no user input). Anyway, how do I make it stop doing this. It does not seem to want to go with the 15 minute setting I put in for screensaver.

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OS X :: When Unplugging MagSafe Screen Dims Down

Jun 30, 2009

Why is this? Can I stop it from happening? I just put the brightness all the way, plug the MagSafe back in, unplug it and it is back to being dim?

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OS X :: Screen Dims Down - Faint Beeping Noise

Mar 23, 2009

I just picked up a new MBP and loving it so far. Not sure if anyone else experiances this so I thought I would ask. When I have walked away from my Mac for a few minutes the screen dims down and has a faint beeping noise. When I touch a key or trackpad it is restored to full colour and the noise stops. Any ideas what or why this is?

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IMac :: 27" Humming - When Screen Dims

Nov 13, 2009

I bought iMac 27" from local apple store two days ago. Everything is fine execpt that there is some weird sound coming from the computer when the screen turns darker to save energy. Once I move my mouse to activate the screen, the sound goes away. I am saying the sound is so load, but it is still noticable and a little annoying in a quite room.

Update: I search "screem+humming+dim" and turn out actually a lot of iMac owners have this problem. Is it a technical issue Apple fails to resolve in general?

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Intel Mac :: Screen Starts To Flicker And Then Dims

Apr 27, 2012

I have had my imac 21 for about 5 years Model identifier say 7.1. running OS 10.6.8 Has been going well apart from a new hard drive. Suddnely tonight the screen flickers when you first turn it on for a few minutes and then settles down but dims down where whites become a light grey. Tried turning off the monitor screen power off and power saver.

Info:iMac, Mac OS X (10.6.8), ilife 11

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MacBook :: Screen Changes Brightness Randomly / Screen Suddenly Become Little Dimmer

Jan 19, 2009

lately, my mba has been behaving a little weirdly. its screen would suddenly become a little dimmer when the brightness in the room has not changed a bit. after a long while(15 min?), it'll turn brighter again by itself, and again without any change in the lighting of the room. the change is not big but obviously. any idea? can it be some software? or setting? or a defective light sensor?

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MacBook :: Screen Randomly Turns Off?

Dec 5, 2010

At least, it seemingly randomly turns off. I can be surfing the web or whatever like normal, but then after a period of time the monitor goes black. I can see that the computer hasn't shut off, but it's as though the computer is on its lowest brightness setting. It can be temporarily fixed some times if I lower the brightness all the way via F1, then put it back up, but if it goes up more than 3 or 4 boxes it goes black again.

It also goes black if I were to move the monitor any time during this whole thing. I've heard things like an inverter cable and board, but I have no idea what's going to fix this. This is my only computer, I use it for all my school work, if it breaks permanently I'm screwed.

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MacBook Pro :: It Randomly Gives Me A Black Screen

May 7, 2012

My MBP has all the sudden started to throw a black screen at me. i have to restart my MBP every time this happens. I have tried doing a fresh install and starting fresh and this doesn't help, I've even installed every app one at a time and tried to figure it out.

Info:MacBook Pro (13-inch Early 2011), Mac OS X (10.7.3)

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MacBook Pro Screen Randomly Shuts Off

Jun 18, 2012

My MacBook Pro screen randomly goes black, yet the laptop still has power. I usually have to reboot in order to get back into the computer.. as moving the track pad doesn't bring the screen up.

Info:
MacBook Pro, iOS 5.1.1

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MacBook :: Screen Randomly Gets Very Dark

Sep 9, 2014

My MacBook is from 2007, so it is old and has its problems.When I turned it on one day, it was all normal, and randomly the screen got so dark, it looked like the computer had shut down on me. I knew it was still turned on though because the little light was indicating that it was on and it was still making the cd drive/booting up sounds. 

After a while, I noticed that the screen just went very very dim, because I could still slightly see the webpage I was on.  Turning up the brightness of the screen did nothing, same with restarting the computer.

Sometimes the screen would come back to the normal brightness, until I would go to do something on the internet and it would go very dark again.  It's so unpredictable, I don't even want to deal with it anymore. 

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MacBook :: (13-inch, Mid 2009) Dims So Low Can't See Anything

May 17, 2012

What can be the issue or how can I diagnose this. The screen dims sometimes so low nothing is visible. It is happening more often now and can happen after its been on only after 10 min.

Info:
MacBook, Mac OS X (10.5.8), Screen dims un-readably low

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MacBook Pro :: Black Screen Randomly Happening?

Oct 7, 2009

My Macbook pro running Tiger 10.4.11 is now starting to randomly, what seems like shut the screen down, and just go to a black screen.

I am running my macbook pro, plugged into the AC / Mains, with another monitor connected, when the macbookpro screen goes black the dual monitor stays up and running, I can even do the mirror screen from the actual macbook pro and run it on the dual monitor and its running perfectly (I hope this makes sense!).

Its really odd and only started in the last few days.. it lasts about 30seconds at a time and is starting to worry me!

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MacBook :: Why Does Screen Turn Black Randomly

Feb 9, 2012

It started almost 3 days ago. My 2008 macbook screen would suddenly turn black. When watching a YouTube video, the sound still plays but the screen is black. I tried adjusting the brightness, didnt work. I tried pressing the power button but nothing changed. Then when i closed my screen and opened it, the display would return with the (turnoff, sleep etc) question meaning my button computed something.

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MacBook Pro :: Screen Blackout/randomly Sleeps?

Mar 12, 2012

My macbook pro 13', 2011 recnetly goes into sleep randomly and sometimes the screen blacksout for a second and resumes normal.

Also, there are times that my zoom in feature in safari fails and I had to reopen the application to re-activate it.

Info:
MacBook Pro, Mac OS X (10.7.2)

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OS X V10.7 Lion :: MacBook Pro Screen Blacking Out Randomly Even When In Use

Apr 28, 2012

For some odd reason, my pro which is only about a month old keeps blacking out. I already checked on the automated sleep and it is not that. The screen will just randomly turn black even when in use. I tried pressing buttons, esc, spacebar, and even turning it off. It also has issues turning off. When I finally get it to turn off and try to restart it, it lights up but then the CD drive makes a noise like theres a disc in it even though there is not. I tried ejecting it even though there is nothing in there and the screen goes black.

Info:
MacBook Pro

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MacBook :: Screen Brightness: Randomly Turning Off?

May 14, 2012

1. Screen Brightness is on.  Desktop functioning as normal, according to the brightness set.

2. Randomly, the entire screen brightness will switch 'off' - but not go to sleep - it is set at the brightness level, as if you would have turned it all the way down manually. Automatically, my screen goes from:

3. After clicking the brightness button on the screen - when I look closely - the brightness control is set at its previous level, but the screen is not at that brightness! darkest screen (above, right) + brightness settings up    

4. In order to solve the issue, I have to hold down the minimize brightness button and then turn it back up, from the lowest setting. This only works about one in five times. All other times, the screen briefly flashes and then goes dark again.     

Info:
MacBook, Mac OS X (10.5.8)

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MacBook Pro :: Randomly Restarting To Login Screen?

Jun 6, 2012

I've been experiencing a problem with my 2007 MacBook Pro. At seemingly random intervals the computer freezes, the screen goes blue, and restarts at the login screen. It does NOT fully restart the computer, which is why I'm having difficulty finding a solution to this problem since most info online seems to deal with that issue.  

I took it to the Genius Bar -- they reset the cache and system permissions -- but the problem remains unsolved. There's no new hardware of software I can think of..MacBook Pro Intel Core 2 Duo 2.2 Ghz running Mac OSX 10.6.8. Please let me know if I can provide more info.  

Info:
MacBook
Pro, Mac OS X (10.6.8)

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MacBook Pro :: Pattern Showing On Mate Screen Randomly

May 31, 2010

I have a Macbook Pro 17" 2.16 dual core with a mate screen and now all of the sudden I get this weird pattern. Sometimes it goes and comes back and sometimes it disappears for a month. Is my screen up for a change or is it just something loose.

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MacBook Pro :: Screen Turning Off Randomly, Cannot Turn Back On

Apr 9, 2012

screen goes black, laptop seems to have not turned off but nothing can turn the screen on.  seems fine after a reboot but problem recurs at some random future inconvenient point in time.  problem is annoyingly inconsistent - it will occur at random (no discoverable software or hardware conjunctions), sometimes around once weekly, sometimes less frequently.  have already had it in a mac repair, said they fixed it, something to do with graphics card firmware. 

Info:
MacBook Pro, Mac OS X (10.6.8)

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MacBook Pro :: 2010 / 15 Inch - Screen Shuts Off Randomly

Jun 24, 2014

My MacBook Pro 2010 15 inch screen shuts off randomly. The whole laptop doesn't shut off just the screen. It calls it a panic but I have to hold down the power button to shut it off when this happens or it will stay on the black screen.

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MacBook Pro :: OS X Mavericks (10.9.4) Trackpad And Screen Freezes Randomly

Sep 10, 2014

I got a new Macbook Pro Retina (mid-2014) a few weeks ago and the trackpad and screen randomly freeze even when the only thing I have open is Safari. In other words, it doesn't feel like my computer has a 2.6 GHz Processor and 8 GB 1600 Mhz Memory. My downloads folder also constantly has the loading bar under it; it goes away when I remove it from the dock and replace it, but appears again after downloading one thing.

This is really frustrating when I got a new Macbook so that I wouldn't have to deal with these types of problems. They're all issues that I never encountered with my Macbook Air (mid-2011).

Info:
OS X Mavericks (10.9.4)

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MacBook :: Won't Work With Brightness Dims / Charger Is Unplugged

Dec 31, 2010

When I unplug my charger from the side of my computer, my brightness on my MacBook goes down a few notches. Why does this happen and how can I fix it?

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MacBook Pro :: Screen Goes Blank Randomly - A Bunch Of Weird Lines Appear?

Sep 7, 2010

In the past month, my Macbook pro, which I have had since May 2009, has started to act very strange.

Sometimes when I watch videos online (collegehumor, youtube, etc.), or am just working on my laptop, the screen stops working. It goes mostly black, and a bunch of weird lines appear on the screen.

The system hasn't crashed or froze, since I can still see my mouse because one little line follows its movement, and the audio still works, and I can still Command + Q and exit out of programs.

I think the problem may have been that I slipped on the stairs one day holding my Macbook Pro and may have damaged the screen somehow, but I just want to know if this has happened to somebody else with their MBP, and what caused it?

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