OS X :: Keyboard Backlight Battery Consumption
Mar 30, 2010
Two quick questions:
- Is it bad to have the keyboard backlight always on? Will it somehow burn out the little lights?
- How much less battery power will I lose if I have the backlight always on? (I use Labtick).
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Nov 21, 2010
Getting fustrated with my Macbook Pro 15''. Could never get battery to last more than 5-6 hours. This is the MAX i can achieve, with great pains to enhance battery life.
Argh, what's wrong with my Macbook Pro?
Check out the amperage drain. At this rate the Macbook Pro wouldn't last more than 5 hours. This is with half brightness, only finder and Chrome open, and the battery recently calibrated.
The amperage drain increases to -1400+ when i have more tabs open, and a few other apps.
However there was this ONE RARE OCCASION, where my Macbook Pro would only drain between -700 to -800 amperage. This was in normal usage and the battery easily lasted closer to 8 hours. But somehow, i can never replicate this anymore!
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Sep 9, 2009
I have a unibody macbook pro 15 inch, 2.8 Ghz, 4gb ram, 500Gb HDD. There are various display settings like 1440x900, 1344x840, 1280x800, 1024x768 and so on till 640x480 (descending order). Will the battery consumption vary at different display settings? If so, how much of a difference will it make?
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Nov 7, 2010
we all know flash is a battery eater so to prevent this is install click to flash then it will indicate every pages that runs flash has this word "flash" on webpage which is good thing.now, i am a netflix subscriber and to watch movies you have to install microsoft silverlight..i dont have any choice to install it. if i open a webpage for example cnn.com yahoo.com etc.. how can i determine that those sites are using silverlight?i believe silverlight will cause battery consumption like flash right?
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Mar 11, 2010
So I have a late 2008 MBP and the battery is draining way faster than it should. Coconut battery says that my battery capacity is at 93% and it only has 73 cycles but the battery has only been lasting 3 hours at best with a full charge, but most typically, it only lasts 2 hours while using the 9400m GPU and at idle. I have reset the battery per apple's instructions 2 times now and I have reset the SMC multiple times. this is what the system profiler says about my power capacity and consumption:
Model Information:
Serial Number:6N839TV313EB
Manufacturer:SMP
Device name:bq20z951
Pack Lot Code:0000
PCB Lot Code:0000
Firmware Version:002a
Hardware Revision:000a
Cell Revision:0100
Charge Information:
Charge remaining (mAh):3522
Fully charged:No
Charging:No
Full charge capacity (mAh):4226
Health Information:
Cycle count:72
Condition:Normal
Battery Installed:Yes
Amperage (mA):-1449
Voltage (mV):11830
This all happened out of nowhere one day, I used to get a solid 5 hours on each charge a month ago and now this.
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Jun 13, 2010
Is there a difference in using mbp with a headphone or built-in speakers in terms of battery consumption?
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May 26, 2010
Does anyone know how much battery the backlight drains on the MBP?
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Jan 25, 2010
i just got my computer back from bestbuy, they replaced the hard drive so i need to customize my mac again.
the only issue i am having is with the keyboard back lights; they wont go on. I read apples help diy thing and followed the 2 or 3 directions they gave me and still no luck.
i know this problem is amazingly simple but i used a PC for the last 15 years so i'm overlooking something.
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Jul 2, 2009
I just got one of the aluminum MB Pros and had to install Windows XP on it.
What I find annyoing is that I can't turn the keyboard backlight off: The F8-key (as suggested by Apple's support) nor the way it works under Mac OS (dimming completely by pushing F5, turinung it off with the next key press) do the trick for me.
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Feb 19, 2009
I own a MacBook Pro 5.1 (late 2008) and since a couple of hours my keyboard backlight suddenly turned off and I can't reactivate it anymore. When pressing the corresponding buttons which regulate the intensity of the backlight I get only the backlight icon on screen with a not available button attached to the lower corner. Is anyone familiar with this problem by chance? This happens under both OS X as well as Windows XP.
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Dec 1, 2010
I have a Macbook Pro (Newest gen.) and sometimes the keyboard backlight wont turn on. I suspect it to happen when I have had the Macbook on standby, but I don't know for sure if that is what does it.
Then i press the backlight-adjust buttons on the keyboard, this OSD-symbol turns up: http://peecee.dk/uploads/122010/Scre..._big_thumb.png
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Apr 4, 2008
Is there any fix to the keyboard backlight problem? My keyboard work only setting manually on. It won`t set keyboard lights on when it`s at the darkroom etc. Is there any fix for this problem?
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Aug 18, 2009
The backlight for the keyboard on my powerbook G4 isn't working. It worked perfectly a few weeks ago. Now when it is completely dark in the room and I turn the backlight all the way up the keys dont light up. Do the backlights on these keyboards really break?
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Jan 21, 2010
how to turn off the keyboard Backlighting on a Macbook?
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Feb 18, 2010
I have a macbook pro and the keyboard backlight turns on and off when i press the f,g,and v keys when I am in a dark room.
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May 30, 2010
In regards to a 2010 13" macbook pro's illuminated keyboard.
1.) Is there a way you can make the keyboard's backlight become brighter in low light situations?
2.) Is there a way for the backlit keyboard to turn off in lit rooms and turn on in dark rooms?
For some reason the backlit keyboard becomes dimmer in low light situations. I'm finding it really irritating. I have a feeling this is the way it is suppose to be so that the keyboard doesn't blind you. Any programs to hack the light sensor?
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Feb 26, 2012
Macbook Air 11inch 1.6Ghz Model
I have tried a SMC reset 3 times, I have tried deleted the plist file and I have tried the finger over the isight lens and nothing is working.
The buttons work fine and it increases and decreases on the screen, it is just there is NO LIGHT whatsoever!
I don't know what else to do and don't want to send my laptop off to get fixed if it is just a simple thing I can do.
Info:
MacBook Air, Mac OS X (10.7.3)
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Mar 29, 2012
My Macbook pro keyboard backlight not working since the first day I bought. F5 & F6 keys are working but the light didn't turn on... Is there any setting to change or?
Info:
Mac Pro, iOS 5.1
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Apr 2, 2012
For the first time last night, I was using my new 13" MBA ultimate and noticed the keyboard back light was not working. Is the some way it has been turned off, and if so how do I turn it back on?
Info:
MacBook Air, Mac OS X (10.7.2)
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Apr 5, 2012
I was surfing the web when my keyboard backlight started to fade on and offat somewhat regular intervals. After about a mintue or two of this, the backlight just went off all together. Now, when I press the F5 or F6 key to brighten or dim the keyboard, the keyboard backlight does not respond. The usual screen pop-up that shows how bright or dim the keys are no longer increases or decreases but shows the symbol of O with a slash through (like the no smoking symbol).
Info:
MacBook Pro, Mac OS X (10.7.3), 13 inch, Early 2011
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Nov 28, 2010
Running an i7 MBP and just tried turning up the backlit keyboard. It's off and is now giving me this when I attempt to turn the light up and down.
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Dec 9, 2010
My keyboard backlight isn't working... whenever I try to turn it up it gives a circle with a line through it. I have read that there is an ambient light sensor that turns off the keyboard backlight when it is too bright, however that has NEVER happened before and I have used it in direct sunlight and the backlight still obviously works. It's not even bright right now but it won't work. This is very frustrating, there should be no sensor that turns it off it should be the brightness I tell it to be.
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Jan 7, 2011
My backlight on my Macbook Pro 2.2ghz (June 2007) is not completely dead, but it looks like its about to die. how I can fix this.
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Oct 20, 2008
I just installed Windows XP on my new alum MBP, and I can turn the black light on the screen and keyboard up and down but I can't totally turn off the back light on the keyboard.
Is there anyway to turn it totally off?
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Feb 27, 2009
My backlit keyboard has recently started to act up. It has recently started at random times to not let me manually adjust backlight at all, randomly turning it off and disabling the two buttons to adjust it. It is a Unibody MacBook 2.4
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Aug 23, 2009
Just got a new MBP 15" AG this week and was wondering if you can adjust the sensitivity of the keyboard backlight. It seems to come on even in a fairly well lit room and I mainly only need it in a completely dark room. So I find myself hitting the backlight keys to turn it off and then whenever it wakes from sleep goes back to full bright. Didn't find anything in the keyboard preferences and found a program called Lab Tick which will take care of the level on wake.
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Sep 6, 2009
In SysPref I found the < Illuminate Under Low Light > button.
I can see the backlight has come on , but it is not at all bright. At least it is nowhere near as bright when compared to a 13" MBP we own. Is there an " Intensity " setting for the keyboard backlight?
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Nov 17, 2009
It wont turn off for some reason while i am running win7...
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Nov 29, 2009
so I got my MBP last week. It's the 15" base unibody model. Is there any way to have the computer setup to automatically turn on the backlight keyboard using ac power? Then do the opposite using the battery?
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Apr 16, 2010
it only illuminates in bright settings. if its dark, it wont illuminate. seems backwards to me, why is it doing this? i dont think it was last night when i first got it.
first macbook pro had a blemish on it. now this one the keyboard isnt backlighting correctly.
just read to put my hand over the webcam and it seemed to kick it back into gear. but then it dies and only takes bright settings to illuminate.
edit: maybe its hitting the sensor (some light from the window at a weird area) in a darker room and it works fine i think.
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