MacBook Pro :: Display Brightness Ambient Light Sensor?

Aug 31, 2009

I thought Apple said that the brightness will go brighter when it's darker, and get dimmer when it's brighter. Why is mine doing the opposite?

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MacBook Air :: Ambient Light Sensor That Adjust The Screen Brightness To Environment?

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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MacBook Pro :: Ambient Light Sensor Is Too Sensitive?

May 12, 2010

I've been using my mum's MPB C2D quite a bit, in anticipation of my own i5 arriving, and one thing that gets on my nerves is the ambient light sensor. It seems to be really sensitive, to the point where it will change the screen brightness when there has been no real changes in ambient light. If you move your hand over the sensor at the top of the screen, or even if someone walks past and casts a shadow it can change for a few seconds. Also, just moving the laptop around and the sensor changes the screen.

Obviously this setting can be turned off, but I'd like the feature if it wasn't so sensitive. Other than that, I love the MBP and can't wait for mine!

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MacBook Pro :: Ambient Light Sensor Not Working?

May 16, 2010

As of today, I noticed my ambient light sensor doesnt seem to work. I tried disabling and re-enabling it in system preferences, but that hasn't done the trick.

Is there some test I can do to see if it's working or not? I know it worked two days ago, because i took the i7 15" MBP outside and it automatically switched to max brightness. Today I took it outside and the brightness didn't switch at all and I couldn't see the screen it was so dark.

Since the last time it definitely worked, all I've done is install Windows 7 64-bit with Boot Camp and hooked up the MBP to an external 20" monitor with a minidisplay-DVI adapter.

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MacBook Pro :: Ambient Light Sensor Not Responding At All

Jun 23, 2014

I've had this new '13 rMBP for a little over 2 weeks now, and I absolutely love it! One small problem though, the ambient light sensor seems to not be responding, at all???

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MacBook Pro :: Disable Ambient Light Sensor (auto-dimming)?

Apr 28, 2007

I've noticed that the ambient light sensor in the MBP can be somewhat sensitive. Sometimes an action as simple as moving my hands up to the keyboard (from the side) triggers the "auto-dimming" feature of the screen and it slightly reduces the brightness of the screen, then quickly returns. This is rather bothersome.

I've got the option under Keyboard and Mouse "Illuminate keyboard under low-light conditions" unchecked, but the screen still dims if you cover the speakers. I've also got the option under Energy Saver "Automatically reduce the brightness of the display before sleep" unchecked as well.

I'm at a loss here. Is there not a way to disable this auto-dim feature? A Google search didn't turn up much of anything. Surely there must be a way...

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PowerPC :: G5 - What Does The Ambient Light Sensor Do

Dec 6, 2008

[URL] I went here. I have found out the iMac is a 2nd gen iMac G5. It has an ambient light sensor. I put my hand over it and it doesn't appear to actually do anything.

What is it supposed to do?

Do new ones have it? I have a 20" aluminum one as well, but don't see a sensor.

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OS X :: Terminal Command To Disable Ambient Light Sensor?

Sep 16, 2010

My end goal is to create a script that will disable and enable the Ambient Light sensor when I plug and unplug my MacBook Pro from power.

To do this I'm pretty sure I need a terminal command to enable and disable automatic dimming as the ambient light changes.

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MacBook Pro :: Light Sensor Turns Up Brightness Of The Backlit Keyboard

Apr 29, 2010

So I've recently purchased the new 13" MBP, and to my understanding, there is a light sensor that turns up the brightness of the backlit keyboard and screen when in dark environments.

However, the problem with my MBP is that when I turn on the lights in my room, the screen brightness and backlit keyboard both turn brighter, and when I turn off the lights, the screen and keyboard grow dimmer, which is exactly the opposite of what is supposed to happen.

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Way To Show Just Ambient Temperature Sensor Reading On An IMac?

May 12, 2012

Is there a very simple way to show just the ambient temperature sensor reading on an iMac?¬†Not for geeky or engineering purposes. Just to know the temp that the machine and the human are in.†iStat widget shows it but really tiny, buried in all the other data,and only if you launch Widgets.Ideally, it would just work in the background and the temperature would show up in the menu on the right side. Maybe next to the time. Alternatively, as a little floating window on the desktop.Yep, just want to see the room temperature using the iMac thermometer.

Info:
iMac, Mac OS X (10.6.8)

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OS X :: MacBook Air Ambient Light Kernel Panic

Mar 19, 2010

A MacBook air that I just got up and running again after replacing the hinges along with the whole top half of the computer. I did a clean install of snow leopard, and was so happy to be using the air again.

After changing some settings and loading a couple off apps in my room with the lights off (so I could see the backlit keyboard), I flipped on the light switch in my room, and was immediatly shown the the kernel panic screen, and was forced to shut down.

I figured this was just a random occurance, so I booted back up, but was in kernel panic as soon as snow leopard booted. Went through this a couple more times, then shut the lights in my room back off, rebooted, and was able to boot up just fine. I then took a flashlight and ran the beam across the ambient light sensor, next to the camera, and was instantly in kernel panic again.

After saying WTF for a while I decided to swap the camera/ALS/mic board over from my old screen bc I figured maybe this new one is just bad. But this resulted in more of the same. I then did a new fresh and clean snowleopard install, but about 5 mins after finishing the install, it went right back to the good old kernel panic screen.

Now I don't really know where to go from here. The computer is way out of warranty, and after what I was quoted from my local apple repair store to repair the hinges and screen that I just fixed, I think I would just get nauseous at the thought of having to bring it to them now.

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MacBook Pro :: Brightness Sensor Not Working Properly

Jun 14, 2010

I bought my first Mac computer last month, the 13" 2.4 variant. Loving it so far.I have lately noticed however that my ambient light sensor is not much of help. Before, after coming out of sleep I could notice the screen changing to accommodate for the room's light output. I could also put my hand over the sensor near the iSight and witness the brightness decrease in front of me.

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PowerPC :: Ambient Light G5 2.0 Imac Shut Off?

Oct 28, 2009

So I've done all I can find on the internet on helping my broken computer. It used to have the noisy fan issue and then it would shut off. Now after being off for 12 hours, it may shut off in 2 minutes, maybe in 30. I have reset the SMU by unplugging for 10 seconds and then plugging in while simultaneously holding the power button, then turning it on. Ive also reset the PRAM, but it still seems to shut off. Is it a bad power supply? I dont ever hear the fans blowing hard anymore.

If anyone has basic things to do, I'm all ears. I know last step is probably just reinstall OSX.

I'm on 10.4 right now.

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MacBook :: Motion Sensor Kills Back Light?

Mar 29, 2010

Here's a new one (for me anyway).

2007 MacBook: 2.16 Ghz, 3GB RAM, Intel GMA etc.

Anyway, all of sudden, any motion I make kills the backlight of the screen. In the right light you can still see things and the computer still works perfectly, just extremely hard to see. Have to do a restart in order to get going again.

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MacBook Pro :: Light Spot When Brightness Is All The Way Down

Sep 5, 2010

When I turn my brightness all the way down, there's still a barely (but clear, still) lit circle at the centre of my screen. I have a 13'' mbp. I can even see my cursor and move it around. This spot, at very low screen brightness, appears kind of yellowish. When I turn the brightness up, it is not noticeable. The circle part has roughly a two inch diameter.

I've had the mbp for about a month, and just noticed this now. I do turn my brightness down quite a bit, but its usually in a well lit classroom and thus its possible I just did not notice this circle that is still barely lit until now.

UPDATE*: I have just discovered that covering the lit apple logo on the screen's exterior (directly opposite the lit circle i suppose) causing the circle to gradually disappear. THe laptop is sitting behind a window (ie light can shine on that apple logo)...what's up with this?

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MacBook :: Location Of Macbook Keyboard Light Sensor?

Dec 22, 2008

was wondering, where the keyboard light sensor was. It is strange because although my light sensor seems to be working properly, the angle of the screen can cause the sensor to be activated sometimes in indirect lightening situations. I just was wondering where the sensor was.

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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 :: Adjust Display Brightness

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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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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MacBook Pro :: Display & Keyboard Brightness Keep Changing

Jul 28, 2010

I just got a new MBP this week and curious as to how/why my display brightness, along with the brightness of the backlit keyboard keep changing without me doing anything.

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MacBook Pro :: Brightness When Connected To External Display?

Jul 31, 2010

When I connect my 13" MBP to an external display to watch a movie etc. the external display seems to be darker than it would appear if I was watching on my MBP. Is there anything I can do to make things brighter (other than turning the brightness up on my TV)?

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Hardware :: Cinema Display And MacBook Brightness Sync Possible?

Nov 20, 2010

Basically what I want to do is sync my Apple Cinema Display's brightness with my MacBook ambient light brightness control. So when the brightness of my MacBook changes because of ambient lighting, my secondary monitor changes with it. Is this possible? Is there a software that does this?

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MacBook Pro :: Display Control (Brightness / Contrast Or Backlight)

Sep 30, 2009

The reason I am asking is that I am using a Spyder colorimeter to calibrate my monitor and it is asking me which controls exist on the display:

-brightness
-contrast
-backlight

My thinking is that F1 and F2 control the backlight level and not the "brightness" level, if you get what I mean.

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MacBook Air :: Does The Display Losses Brightness Over Time/usage

May 20, 2010

Just had apple replacing the display on my rev b air due lose hinges, I think this new display much brighter then the old display. It is just a psychological thing? or does the screen actually losses brightness over time/usgae?

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MacBook Pro :: External Display And Wired Keyboard - Brightness Keys?

Oct 18, 2009

I use my MBP hooked up to an NEC display with an Apple wired keyboard. Is there any way to have the F1/F2 keys still control the brightness on the MBP display? They currently don't do anything.

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MacBook Pro :: Back Light Only After Using Thunderbolt Display?

May 13, 2012

I have a new 2012 Macbook pro 17 and a 27 inch thunderbolt display. 

The Macbook was working great. Then I connected it to the thunderbolt display and did clamshell mode. That worked well too. But.. then I powered down the macbook, disconnected the thunderbolt dislplay and tried to boot back up again. The mac book powers on, the back light comes on, I hear the chime then that is it. The back light stays on nothing else happens. Resetting the PRAM can not be done. Any of the boot options are ignored. It is like the keyboard is non resposive. I tried all the reset and boot  combinations available but nothing works.  

The light on the front of the macbook comes on then goes dim. The apple logo on the lid stays lit, and if I close the lid, the apple logo goes dim and the light on the front lights up. Weird, it is almost like it goes to sleep when it turns on. I tried conntecting the thunderbolt again but no joy. I am really disappointed. This is less than a month old and its already going in for repair. It should be replaced.  

Info:
MacBook Pro, Mac OS X (10.7.4), I am disapoint.

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MacBook Pro :: Why Does Display Light But Computer Does Not Boot

Aug 24, 2014

When I power the computer up, screen lights, but the computer does not boot up?

Info:
MacBook Pro, Can't check operating system

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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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Hardware :: How To Control Brightness On Cinema Display

Jul 12, 2008

I have setup the 23i cinema display with mac pro. I have connected the USB and firewire cable to mac pro.. and keyboard is attached to back of the display. For some reason I cannot seem to adjust the brightness of the display from the keyboard (though I can do it from the side of the monitor). Neither can I see the brightness slider bar in the display settings. Also while the display is the the power led in the front blinks 3 times, then there is a little pause, and blinks 3 times again. How to fix this brightness control issue with the display. I have reseted PRAM and NVRAM... still nothing has changed. Also note I do not have and options tab for some reason.... (I have tried to plug the display's usb into the back 3 usb of the Macpro... still nothing)

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Hardware :: Brightness Slider Gone In Display Preferences

Jun 19, 2009

I have a 24" LED Cinema Display and can no longer control the brightness settings in OSX I believe when I applied the recent java/bluetooth updates the slider disappeared upon reboot. I did some searching and can't come up with a way to get it back. I'm using a 15" Unibody MBP, and the brightness slider for that screen is available and does work. I also tried setting the keyboard shortcuts on my main keyboard (external) to turn up/down the brightness but they won't function at all.

I have tried zapping the PRAM, repairing permissions, and disconnecting/reconnecting the display, as well as booting with no external display and nothing has made the slider reappear. I also logged-in as a different user and the slider is not there for the Cinema on that profile either. I really, really hope I don't have to reinstall OSX to get rid of this but I'm out of ideas. The worst of it is that I turned down the brightness to less than half (when it worked) becuase I had a headache and now it's stuck there!

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