IMac :: Adjusting Brightness Level?

Mar 23, 2009

i got a question about adjusting the brightness level on iMac.

i adjust the brightness to lowest but each time i restart or turn the computer back on, the brightness level would set back to highest. Is that for all the imac? is there a way to set it?

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OS X Mavericks :: Adjusting IMac Display Brightness?

Sep 3, 2014

Suddenly my iMac's display is very dim - almost can't read the text. The display brightness keys <F2> and <F1> don't do anything any more. How can you adjust the screen brightness? 

Info:
iMac (21.5-inch Late 2009), OS X Mavericks (10.9.4)

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IMac :: High Pitched Noise Heard On Adjusting Brightness

Jul 29, 2010

Just got my new i7 in the mail today after waiting for the refresh for 5 months and it has that stupid high pitched noise that you get when you adjust the brightness. I returned four of these things at the beginning of the year (2 HD failures, 1 power source failure, 1 DOA), one that had the hd failure also had this same high pitched noise.

I love these computers (minus the complete lack of quality control), so I don't want to switch back to PC, but I am at my wits end here. Apple already gave me $150 off this computer for me trouble, but I just don't know if its worth the hassle anymore. I am returning it for sure, but would you ask for more compensation, maybe a ram upgrade or something? I don't like to be the guy who asks for free crap, but the way I see it, they can give me another hundred $, or I can go back to pc and they lose a customer for life.

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Intel Mac :: With Boot Camp, F1, F2 And F10, F11, F12 Buttons Not Working For Adjusting Brightness?

May 18, 2012

I have a iMac with Boot Camp so im often using windows when im using programs/games that are only made for windows...However, the buttons F1, F2, F10, F11 and F12 are not working (I dont know about the other buttons F3-F9). I cant adjust the brightness and sound anymore by pressing F1 and F2 etc. What could be wrong?

Info:
iMac, Mac OS X (10.7.2), With Windowns 7 :)

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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 Air :: Brightness Level And Battery Life

Jan 13, 2011

Excluding sitting outside in the sun or in very dark rooms, what level do you usually keep your MBA brightness level at and what kind of battery life do you get? I've got mine set to about 65%, haven't used it enough to know what kind of life I get.

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MacBook Pro :: Brightness Level In Low Light Conditions?

Jan 13, 2010

i keep my MPB on 1/16 brightness level in low light, and it took me more than a month to get used to. What is the highest level of brightness you can tolerate in low light conditions?

I dont want to sound too sensitive but sometimes it looks almost too bright even on min settings.

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MacBook Pro :: Maximum Brightness Level On External Monitor

Mar 4, 2010

I am looking to purchase an external monitor for my unibody macbook pro, and I love the (maximum) brightness level on it, and would like the same on my external monitor. Does anyone know what the cd/m2 rating is?

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MacBook Pro :: Is There A Way To Decrease The Brightness Level Beyond The Lowest Setting

Aug 22, 2010

i sometimes use my mbp in a dark room and find the lowest brightness setting to be to bright. is there any way to get the screen even more dim?

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MacBook Pro :: Brightness Level Settings In Normal Office Lighting?

Jul 29, 2010

Under normal office lighting, I find anything other than 100% brightness seems too dark. But I've been getting huge amounts of eye strain so am wondering whether to turn in down some more, say to 50-75%, but worried that will strain my eyes even more. What do you guys have your 13" set to, assuming good ambient lighting?

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Intel Mac :: Keeping A High Brightness Level All The Time Effect Performance Or Display?

Feb 27, 2012

does keeping a high brightness level all the time effect performance or display?

Info:
iMac, Mac OS X (10.4.1), 27"/4GB/2.7GHz/intel core i5

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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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IMac :: 21.5 Brightness Vs 27 Brightness?

Aug 1, 2010

I went to Best Buy yesterday and they just got the new imacs in and had on display side by side. The 21.5 display was not as bright and vibrant as the 27 display. The apple and best buy guys could not tell me why the difference. The settings were checked and found to be the same for both machines. I was going to get the 21.5 but now not so sure. I definitely like the brighter 27 better. Is this normal? Why is the 27 brighter? Has anyone else noticed the difference?

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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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IMac :: Wireless Keyboard Battery Level Not Changing?

Jan 14, 2010

Anyone else have this issue....my Mom has the new 21.5" iMac (base model) with the wireless keyboard. The Magic Mouse battery level changes, however the keyboard battery level stays at 100% all the time?

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OS X Mavericks :: Can't Adjust Sound Level On IMac Keyboard

Aug 21, 2014

I can't adjust the sound level on my iMac keyboard? The screen just disappears but the sound level remains the same

Info:
iMac, Mac OS X (10.7.5)

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IMac (Intel) :: Microphone Is Recognized But No Input Level

Sep 8, 2014

My mic isn't picking up sound on my iMac, but it works on any other computer i use it on.I have multiple USB Microphones and they all have the same problem. They seemed to be working a couple days ago.

Info:
iMac, OS X Mavericks (10.9.4)

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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 :: 2nd Monitor Brightness?

Nov 26, 2010

I have a 27 iMac, and a 22 inch Viewsonic as the second monitor.

The second monitor is just not bright. I have used another monitor as a second monitor as well. Both are just not bright enough to suit me.

I have fiddled with the brightness controls, to no avail.

Is that a generic problem with second monitors?

They just don't get enough juice or something?

Would another brand monitor help?

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IMac :: Brightness Settings Don't Stick?

Apr 20, 2009

I have a new iMac 2009 - 24' - 2,93Ghz, running the latest OS.

When I start, the brightness is at maximum... I set it to minimum, only to find it at maximum again when I re-boot the computer ! I tried setting it via settings as well... it just dosent stick !

On the flip-side, the volume retains its last settings.

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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 :: 2009 - Brightness Settings Won't Save?

Mar 11, 2009

the monitor's default brightness setting is far too bright for my eyes, so the first thing I did was to open the System Preferences pane and reduce the brightness setting. That worked fine until I shut the computer down. On rebooting, the brightness returned to its default highest setting. On my older iMac G5, the brightness setting always stayed put. It isn't a huge problem since adjusting the brightness setting does work, but I don't want to have to adjust it every time I reboot my computer.

I spent two hours yesterday on the phone with Apple support trying to fix the problem, even going so far as to reinstall the system software with no success. The woman on the phone finally suggested that I return the Mac for a replacement.

Has anyone else here with a 2009 iMac experienced this problem? Is it possible that it's hardware related? If so, could this be the tip of the iceberg suggesting a potentially larger problem down the road? I would have guessed it might be a software glitch. (The new iMac has thrust me, finally, into Leopard; until last week I was using Tiger on my older G5.) I bought the 3-year Apple Care with it--since the new iMacs have only been out a week, should I wait until the next Leopard update and see if that fixes the problem?

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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 :: Brightness - Fan Sound And Speed - Battery?

Jun 30, 2010

Today morning, when i switched it on, I saw that the back fan is moving with more speed and sound . earlier, I never heard the fan sound. Also, on startup the brightness is set to max , while my settings was very low brightness. Howcome, its starting with max brightness now, when I dont have changed anything ? And what about the fan sound and speed? And yes, does the iMac has a battery also ? for what? Its always plugged to AC current, then what is the battery doing ? I never knew that. just downloaded istat pro and it shows HD 35 degree and Battery 55%. Wht is it ?

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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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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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IMac (Intel) :: Change Display Settings Such As Color Temperature And Backlight Brightness On Monitor?

Nov 30, 2014

My wife has an iMac (I don't know any other way to identify it e.g. model number), and she has this 3rd party calibration software that I'm trying to use. I am not used to a Mac, and I cannot find the display settings for the monitor. There are no buttons on the monitor, and when I go to preferences, I can only find the brightness control. I've googled this and cannot find a clear, simple answer. I have used every version of Windows (currently on 8.1 on my PC) and it's easy for me on that platform. I suppose it's just that I don't really know how to navigate Mac OS.

Info:
iMac, Mac OS X (10.6.8)

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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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