IMac :: Increase Brightness Of Screen / Screen Brightness Is Dim

Nov 28, 2010

I have the 21" iMac and need to brighten the screen. How do I do this?

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Windows On Mac :: Unable To Adjust Screen Brightness / Screen Brightness Buttons Not Working

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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Mac Pro :: Unable To Adjust Screen Brightness / Only Adjusts Brightness On Main Screen

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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MacBook Air :: Screen Brightness Suddenly Increase Or Decrease / Happens Under Battery Power

Jul 8, 2008

I've noticed recently that my screen brightness will suddenly increase or decrease by itself. When I press one of the control buttons it indicates that it is 3 or 4 steps higher or lower (obviously allowing for the fact that pressing a control button moves you one step anyway!) I have the 1.8 SDD. I love the machine....but anyone have any ideas about this. It only happens under battery power.

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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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IMac :: Screen Brightness Always Max At Boot With 10.5.8?

Aug 7, 2009

Am I the only one having this bug? I have a 2009 24" iMac Radeon 4850 and after installing the 10.5.8 combo every time the machine boots the brightness is set to maximum.

I tried zapping the PRAM and that didn't help.

The other problem I noticed is that my startup network shares, even though checked to "hide" pop up finder windows at boot time. It never did this before (even without hide being checked).

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IMac :: Screen Brightness Adjusts Itself After Reboot?

Aug 25, 2009

After every reboot, the brightness of my iMac's screen changes to 100% brightness, which is slightly annoying. Does anyone know why this happens? By the way, I'd say it does it since 10.5.8.

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IMac :: Screen Set On Full Brightness On Every Startup

Sep 9, 2009

I have a Rev A (Aug 2007) alum iMac (20") and ever since I installed 10.5.8, the screen has been set on full brightness on every startup. I'm currently running Snow Leopard and the problem persists. I erased and installed during the procedure so I don't think it can really be a corrupted system file or something.

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IMac :: Unable To Save Settings / Screen Brightness Goes Up At Reboot

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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IMac (Intel) :: Brightness Icon Is Displayed On Screen And Will NOT Shut Off

Sep 10, 2014

How to keep the Brightness meter icon from appearing on your screen? 

Model Name: iMac  Model Identifier: iMac12,2  Processor Name: Intel Core i5  Processor Speed: 3.1 GHz  Number of Processors: 1  Total Number of Cores: 4  L2 Cache (per Core): 256 KB  L3 Cache: 6 MB  Memory: 16 GB  Boot ROM Version: IM121.0047.B1F  SMC Version (system): 1.72f2 iMac (27-inch Mid 2011), OS X Mavericks (10.9.4)

Info:
iMac (27-inch Mid 2011), OS X Mavericks (10.9.4)

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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 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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OS X :: Dimness In Screen Brightness / Starting About Halfway Down The Screen

Dec 22, 2009

I have a 2007 aluminium imac running Snow Leopard. It needed to have a disk drive replacement recently under applecare. Since I got it back I have noticed a marked dimness in screen brightness starting about halfway down the screen, most noticeable against a window with a white background. It is pristine white at the top of the window but from about halfway begins to get dimmer. Its a bit like being in sunlight and the coming into shadow, or finding mist creeping into the picture.

I have tried recalibrating it but it makes no difference. It might have been there before the repair but if it was I didn't notice it or else I grew used to it but now I find it quite distracting and it does make text a little harder to read as I'm getting on in years and my sight needs all the light it can get. Is it normal or is it a sign of problems beginning to manifest themselves with the display? I wouldn't like to ignore it & find myself out of applecare cover when it does.

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OS X :: Screen Changes Brightness Level Automatically / Flickering On Screen

Jun 1, 2008

So I have noticed a few times already, that the screen on my white macbook flickers to change the brightness level. It can do this while the computer is plugged in and charging, or if it's off the charger. It is definitely noticeable as it causes me to just watch what the screen is doing.

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OS X :: Increase Brightness App?

Jun 24, 2010

My Apple ADC Studio Display has decided to stop all of it USB ports from working and as anyone who knows about these monitors you need to connect the monitor to a USB port to get the Brightness control to work, are there any apps out there which can control the brightness of the monitor up or down. I have played around with Calibration but I still cannot change the brightness of the screen. I have searched around for some solutions but all I have found is brightness controls which turn down the brightness but do not allow you to adjust the brightness up

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MacBook Pro :: Keeps Changing The Screen Brightness?

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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MacBook :: Screen Too Dim Even At Full Brightness

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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Windows On Mac :: Screen Brightness Goes To 100 Percent

Aug 10, 2008

I usually have my screen brightness set to a few ticks above the lowest, but when my screen shuts off (after 3 mins or whatever I have it set to in the control panel) and gets turned on again, the brightness is set to max. If I then drop the brightness by one tick, it drops to where it was set before. It doesn't do this when I close the lid but it does go to full brightness when I restart the computer and as I enter the windows desktop it goes back to what it was set at.

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MacBook :: Display Brightness - Screen Go Dim After Sometimes

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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Mac Pro :: Cannot Control Th Screen Brightness With The F1 F2 Keys?

Nov 11, 2009

I am using a Samsung monitor so therefore cannot control th screen brightness with the F1 F2 keys.

I tried Shades but it messes with the colour making it look a little washed out and not good.

Are there any others I could try ?

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MacBook :: Screen Brightness Level Down All The Way

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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MacBook Pro :: Setting Screen Brightness To Max?

Jun 2, 2010

I find it you have to or it will be too dark.

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Intel Mac :: Its Screen Brightness Changing?

Apr 19, 2012

Purchased my iMac 27" back in October 2011. It was fine up until around February this year until my screen brightness started flickering automatically. I have the ambient/auto brightness setting switched off and after many discussions with apple care on the phone I have been advised to bring my iMac back in to the store. 

1) is this a common problem a lot of people have experienced with iMacs?

2) Do you think it will be repaired or replaced?

3) Does this happen with the macbook airs as I was planning to purchase one for university in September, however if this problem occurs with their laptop range then I will opt for windows. 

Info:
iMac, Mac OS X (10.7.3)

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MacBook Pro :: Screen Brightness On Windows 8?

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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MacBook Pro :: Increase Brightness Beyond The Default Setting On It?

Jun 19, 2012

Just got the new MacBook Pro Retina, and I love it except for the fact that the overall brightness was decreased by 20-25%. A couple reviews talk about this noticeable reduction in brightness [URL], and I assume it has to do with the power consumption of the retina display.That said, I've always thought the highest brightness in previous generation MacBooks was barely bright enough as it was, and now with this reduction in default brightness, I'm finding it hard to use. I know I may be in the minority thinking this, but I may have to return the machine if I can't find a workaround. Is it possible to increase brightness beyond the default setting? Is there a command line setting that I can adjust? I'm well-aware of the battery trade-off this will have, but I don't care. I have to be able to see the screen. 

Info:
MacBook Pro (Retina, Mid 2012), Mac OS X (10.7.4)

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PowerPC :: Upgrading Screen And Increasing Brightness

Jul 21, 2006

I was wondering if/where I could get a better screen for my 12.1" Powerbook... Better viewing angle, brighter, possibly glossy. OR is there a way to bump up the screen brightness by just putting more juice in it? I know it would hurt battery life, but while it's plugged in it wouldn't hurt.

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MacBook Air :: Brightness Key - Change Indicator On Screen But Not Actually

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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MacBook :: Screen Brightness Started Diminishing?

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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MacBook :: Set Screen Brightness Battery / Power?

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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MacBook :: Screen Brightness Affected By Electricity?

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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