MacBook Air :: Unable To Adjust Screen Brightness / Brightness Goes Up And Up
Nov 15, 2010
The brightness goes up when you plug in your MBA, but then over time it just goes up and up. I honestly like my brightness pretty low (rarely more than half, typically at 3-5 notches), but it just keeps on going up and up. I almost never set it above half, but multiple times a day, I notice that it looks pretty high and it's at like 3/4 so I put it it down to about 1/3, but after a while, it's just up again.
Anyone else notice this? What is it, why does it do this? How can I fix it? I don't mind not having auto-brightness (even though I loved it), as long as my screen doesn't keep going up.
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Jun 20, 2009
So I installed Vista 64 bit on my Macbook Pro (Santa Rosa), I installed most of the drivers I can find, but I cant get the screen brightness buttons to work (F1 and F2)
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Feb 17, 2008
I have dual ACD's. How do I make it so that both screens have the same brightness? If I adjust the brightness in the display settings it adjusts the main screen, but then not the other one. How do I make them the same?
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Oct 21, 2010
Does the new MBA still have the ambient light sensor that adjust the screen brightness to environment?(like the older MBA and the current MBP)
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Feb 28, 2009
I found the setting under Displays to automatically adjust brightness, but is there a way to set this different for Battery or Power Adapter? I would like to keep this option on for using the Battery, but would like the display at a constant level when using the Power Adapter.
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Apr 2, 2007
The screen on my MacBook will randomly adjust brightness or sometimes flicker.Does anyone else have this problem or know how to fix it?
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Jun 11, 2012
I have an iMac, the screen has gone quite dark (as if in sleep mode) I have to sit in a darkened room to see it properly. Have I hit the wrong key or key combination of keys? How do I adjust the brightness?
Info:
iMac, Mac OS X (10.4.11)
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Nov 28, 2010
I have the 21" iMac and need to brighten the screen. How do I do this?
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Jun 18, 2009
So I have an AVI file that won't even load in quicktime, but it plays fine in VLC and MPlayer. As far as I can tell neither of these programs let you adjust the color, contrast or brightness of the file. Does anyone know of a program that will allow me to do this?
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Mar 12, 2008
I cannot control my screen brightness using the F5 and F8 keys. The only way I can adjust it is through System Preferences. I tried just F5 fn F5, Control F5, Option F5 and Command F5 and non work.
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Jan 28, 2010
I have recently put windows 7 professional on my aluminum macbook, installed all the drivers, and so forth. I hook up my macbook up to an external monitor, and use a logitech dinovo keyboard for a mac. However, when I am in windows 7, the function keys do not adjust volume, brightness, and any other of the functions.
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Jul 23, 2010
All of a sudden, every time I reboot, my screen's brightness is all the way up. So, I go to 'Preferences' and bring it down to only happen again the next time I reboot. Not a terrible problem, I hope, but not sure why the settings of this doesn't remain as I left it last. Perhaps I have picked up something OR I have a fault which could get worse?Anyone seen anything like this?
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Oct 14, 2010
I've got a 2010 i7 15.4 MBP, after installing boot camp drivers from MAC OS DVD, I could not find any option about how long to dim screen brightness. However, my friend's 13.3 MBP does have. What about yours, guys?
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Sep 15, 2007
I just got a new 15" MBP and it keeps changing the screen brightness by a couple notches either way on it's own. Anyone have/heard of this problem?
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Mar 4, 2008
My MacBook's screen is pretty dim, even at full brightness. The iPod Touch far outshines it and even a Sony PSP is brighter.
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Oct 10, 2009
Recently, after about 5 minutes of use (not sitting idle), my MacBook's screen will go very dim. I hit the buttons on the keyboard to take the brightness all the way up, but it doesn't get much brighter and there's only one thing that I can do to make the screen go brighter: I go into System Preferences and click Display. The second I click that, the brightness returns without me doing anything in the Display section, so after Display comes up, I just close it out and the screen brightness is fine for a while. It seems to do this after the lid has been closed for a while and then starts dimming again after opening the lid and using it for about 5 minutes. Is there a way to fix the auto-dim mode without disabling it? MacBook (white) is running Leopard 10.5.8 with all the latest updates.
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Apr 7, 2010
I dropped my laptop on a tile floor and the bottom hit it flat. my computer works fine besides the fact that my computer screen's brightness is as if my brightness level was all the way down.
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Jun 2, 2010
I find it you have to or it will be too dark.
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Jul 1, 2012
I wanted to check out Windows 8 so i decided to install it using Bootcamp on my Macbook Pro. I installed it successfuly, along with the Windows Bootcamp drivers, but my Display is VERY dim, the brightness is all the way up to the Mac. I rebooted the Macbook Pro and ran OSX and the brightness is fine, but on windows is very very dim and idk how to fix it.
Info:
MacBook Pro, Mac OS X (10.7.4)
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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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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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Feb 10, 2008
When I push the brightness key on the keyboard, the appropriate image comes up on screen and goes to full brightness, but the actual brightness of the screen doesn't change and the lack of change is reflected correctly on the brightness slider in System Preferences.
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Mar 28, 2008
I have a first generation macbook pro and it appears as though the screen is not as bright as it once was.
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Jan 19, 2009
I am just wondering if there is a way to have a brightness preset for when the macbook is plugged into the wall and running on battery?Eg. When plugged in I want 100% prightness, but when running off battery it automatically lowers the brightness.Right now I manually lower it and some times forget.. especially times when I need that extra bit of battery power
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Mar 22, 2009
I have the aluminum MacBook (<3) and it is often found on my desk, in front of my aluminum desk lamp. I was writing a paper and had one hand on my touchpad and touched my (off, but plugged in) light with my other hand. My screen dimmed just a little bit, approx the brightness between the two highest lighting levels. Even when not touching my touchpad, just touching my light, my screen did the same thing. Depending on WHERE on the lamp I touch, it affects the brightness... but only on the bell surrounding the light bulb, no other components of the light.
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Jun 24, 2009
I don't know if anyone posted this issue before. I can not control screen Brightness on my MBP 13'. I tried my F1 and F2 key and the Nvidia Control Panel, either of them is working. I installed all the drivers from the CD and it can actually show the icon in the center(bottom) of the screen when I hit the F1 or F2 Key. However, the brightness adjust does not work,the screen stay the same.
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Jun 29, 2009
Just bought a brand new 15" MBP, and immediately after unboxing the screen brightness seems to just move/adjust without adjusting via brightness buttons.
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Aug 31, 2009
I have a macbook and a screen plugget to it. Now I use just the new screen and don't use the macbook one. But every time I turn the mac on the macbook screen turns on, and I have to decrease the brightness manually every time. (cause it's a waste of energy to keep it on if I don't use it). So I'd like to know to set the screen brightness to 0 by default, so I don't have to turn the brightness down every time.
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Sep 29, 2009
(Electricity as in AC power.) I've been using the brightness controls (F keys) to turn off the screen at night and leave my computer running. I just assumed it uses less AC power that way and I'm saving some electricity but I don't know a lot about electricals to confirm my theory. Does anyone know?
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Nov 23, 2009
I've been wearing contacts all my life in order to get 20/20 vision. And until last week I always had to have my brightness on the highest setting while I was at the office with fairly bright overhead lighting. While using the computer at home with the lights off/dim, I still had to have the brightness set to 4 bars shy of the brightest setting in order to see everything properly. And I never understood when I would see people on here saying they had their brightness set to the lowest settings and it was plenty bright for them to see. Last friday I had LASIK done.
And since the surgery I now have 20/15 vision in both eyes, which was expected. But one thing I did not expect was the difference in brightness. Now in the same office setting I have the brightness set to 40-50% brightness and it's still almost to bright. And at home I set the brightness level to 1 bar and it's more than enough to see every detail on the screen. In fact, I now wish there was a lower brightness setting than the lowest bar. The best part is that, while running on battery, I can now get another 30-40 minutes out of usage with the brightness set so much lower. Now if I could just figure out how to get my volume to not jump to 70% when I plug my headphones in I would be very pleased.
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