Screen brightness is set at 100% at startup

Hi,
I upgraded to Snow Leopard and now I've noticed that the OS always sets the screen brightness back at 100% after the startup. I would like to have this setting around 50% and I would like to have it remembered. Now I always need to open the Preferences and do it manually. This wasn't the case in 10.5 ?!

Hi Danielle,
Have you tried resetting PRAM? This link will show you how....
http://support.apple.com/kb/HT1379
After you have done this, your screen brightness will be at it's maximum. Reduce it to the brightness that you want & then restart & see if that brightness setting has been retained.
Ben

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T60 Screen Brightness - BIOS setting doesn't hold

I have set the BIOS on my IBM t-60 to high and when I start it up using the battery it always defaults to low. This is a new problem that has not been an issue as long as I have owned it. I did recently upgrade my lenovo upgrades. I would like the brightness to stay on high if use the battery or am pluged in. Can you please help?
Bill
Moderator comment: Subject edited for clarity.

Hi, becknet
When you did your Lenovo updates, do you know if there was a BIOS update included? The latest BIOS for your system is version 2.27 and can be found here. Make sure you're updated to the latest version.
Best,
Adam
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Hp 2159m Monitor is Set to 100 Brightness and is Dull

Im' using Windows 8 - 64 bit. Brightness is set to 100 and is till too dull. How can I boost the brightness?

Hello Susankaye,
Welcome to the HP Forums, I hope you enjoy your experience! To help you get the most out of the HP Forums I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I understand that the brightness on your monitor is set to 100 and is too low and you are looking for help getting it brigher. I would be happy to assist you, but first I would encourage you to post your product number for your computer. I am linking an HP Support document below that will show you how to find your product number. As with this I can provide you with accurate information.
How Do I Find My Model Number or Product Number?
Please re-post with the requested information and I would be happy to provide you with assistance. Thank you for posting on the HP Forums. Have a great day!
Please click the "Thumbs Up" on the bottom right of this post to say thank you if you appreciate the support I provide!
Also be sure to mark my post as “Accept as Solution" if you feel my post solved your issue, it will help others who face the same challenge find the same solution.
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Lenovo S400 screen brightness darker on Win 7?

So I recently bought a Lenovo S400 that came with Windows 8 for someone. However, he didn't like Windows 8 so I installed Windows 7 on it. After installing all the driver, the screen for some reason got darker. It seems like the lowerst the screen brightness can go and the hightest the screen brightness can go got lowered. I thought it may have been a driver issues so I uninstalled and reinstalled all of the driver without any luck. So I just formmated the computer again but still no luck.
Does anybody have any solutions for this?

***UPDATE***
Ok so the problem is confirmed! As soon as I restored Win 8, the screen brightness was set at 65%, I was quickly able to turn it up to 100% and the screen is as bright as ever. So it is now definitely not a hardware issue but an issue with Win 7 drivers Lenovo provides.
Now, I will try getting all the drivers off the hidden partition and try restoring my Win 7 back and trying that Win 8 driver. If that works, I will upload the Win 8 driver for everyone and post a link.
But, I definitely discovered the cause. It's drivers!
PS
In fact, I will post the driver if I find it now, so you guys can try it out before I do the Win 7 restore again.
Hmm, the only problem now is I can't seem to see the drive with the drivers on it. I know I had it before, but I can't see it now, I recreated all the partitions Lenovo came with, keeping exact sizes, but I can't seem to assign a letter to any of them through standard disk management app.
Ok tried viewing the hidden partitions.... I just remembered that I was stupid and didn't backup the D drive, which is where the regular OneKey Backups go and the drivers were in that folder as well.....
So if anyone has Win 8, please upload it somewhere, preferably dropbox or mediafire, so I can test it.
Because it'll be a long time before we get it from Lenovo and I really hate Win 8!

Screen brightness to 1 bar after wakeup after sleep!!

Has anyone experienced that when you wake your macbook up after sleep the screen brightness is set to 1 bar...
dont know if this is actually a problem or if it can be set in system pref..
thanks in advance for your replies...

Have you tried toggling on and off the automatic adjustment for ambient light? Try checking and unchecking it's box, System preferences>Display>uncheck box. This should keep the brightness of the display constant.

What is your screen brightness at????

Can you post what your screen brightness is set at in your settings.Do some of you who have way high battery life have your screens maxed out or 50%???
I like to have my screen on max because I love the brightness but it seems like it drains your battery a lot faster with the ip4 than previous models. I am currently running it at 75% now...
THANKS!!

Hey that brings up a question I got. I can't figure auto brightness out. If it's auto brightness then why is there a slider to control it? Is it best to set slider higher if using auto brightness?
I used to keep level about 60% on 3GS but seem to need 75% with auto brightness on for ip4

Pureview 808 - Need constant screen brightness: Ho...

On the Nokia 808, even though the screen brightness is set to a predefined brightness and Power Saving mode is Off, the screen brightness can change at times. The time limit for the backlight is set at 60 seconds, but the LCD screen can dim a bit within that time. My guess is the brightness changes in response to ambient light changes.
Its hard to adjust exposure compensation and evaluate photos for proper exposure when the LCD screen brightness changes on me.
Anyone know how to keep the LCD display brightness constant?
Thanks in advance,
Keith.

Wow, thank you very much! By downloading the "Brightness" app, the screen brightness is now constant!
Now I'm able to get a handle on how much exposure compensation to use since the display isn't a variable anymore.
Also it appears that I'm not losing images when shooting in burst mode anymore. Perhaps the change in screen brightness operation led to corrumption while the image was being saved. Before the Brightness app, 1 out of 3 images in a burst would almost always be lost. Its too early to know for sure. Only time will tell if the corruption problem has been completely mitigated as a byproduct of using the Brightness app.
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Keith.

NB100 - How set the screen brightness?

Hi all.
Just bought an NB100 - overall very very pleased with it. Well built, good screen and very compact etc.
Got a couple of questions? The screen brightness is controlled by Fn+F9/F10. I like to have it set to "halfway" or less - partly to preserve battery - but also because I find max brightness is actually TOO bright for me! But on reboot the machine seems to always start at maximum again. Is there any way round this? Does it perhaps need a firmware update (my machine seems to be running version 1.90 which I believe is the latest)?
I noticed other threads mentioning Fn + F8 as a means of selecting Bluetooth/Wlan etc? Mine seems to just control the fan setting and processor speed - The "grey" fan setting gives 1.6ghz and the fan comes on - whereas Fn+F8 toggles a "white" fan icon - where the processor throttles down to 800/900 ish and the fan slows/stops(?). [in passing I've noticed some videos become "jerky" if the lower setting is chosen]
I'm not 100% sure what Fn+ "pipe" key does (to the left of F1)? The Fn+F1 switches on wireless/wifi I know - but the "pipe" key seems to be a Wlan symbol (or is that the key to use for Bluetooth or GPS or whatever)? Sorry to sound so ignorant - but the user guide doesnt go into that much detail. I'm fairly sure the machine I bought - which was a Toshiba Refurbished/Reconditioned NB100 - model PLL10E - hasnt got any BT/GPS etc - just the basic wifi which F1 switches on and off.
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Regards to all.

hi, i think the best way to set brightness is in options of energy properties accessible in system tray icon. I know about bt and wlan activation, it seem that bt and wlan dispositives are on the same circuit on/off, so not indipendents. Nb100 is a good inexspansive machine :)

IBooks' Screen Brightness Setting Not Isolated from iPad's?

Hello all,
Am using iBooks app on my iPad 2.
I set my iPad's Brightness to the max/full and turn on 'Auto Brightness'.
When I go into iBooks and click on an ebook, the screen brightness is the same glaring bright.
Click on the 'sun' icon (Brightness settings) the knob is actually skew towards the way left, but once I touch the 'knob' the whole screen will turn dark, I presume this is the actual brightness inside iBooks. I will have to slide the knob more than half-way mark a bit, to get my desire brightness (I do not set to max brightness)
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The only time it will revert back to max brightness, is when I put the iPad to sleep and log back in.
But once I go into iBooks, the whole "cycle" starts again.
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are you people using Thinkvantage Power Manager 3.20?
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That isn't really a default setting. It is arbitrary, one system might be different than another at first turn on.
Simple way to tell is wipe your hard drive and reinstall OS X. Whatever the screen brightness is at the completion of the OS X install is the default. Make a record of it.
petvas wrote:
Of course there is a default setting. It's the setting that is configured when you first turn on your mac.

Reduce screen brightness too soon on Highest performance setting

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Hmmm, just checked on my iMac, and that is the file that holds that setting... does that stay unchecked between reboots?
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Screen brightness fluctuates despite adaptive setting being disabled

Hey everybody.
I'm on a 2012 13" MacBook Pro running Windows 8. I've been noticing my screen brightness changing randomly in the middle of all sorts of tasks. It's always a very sudden jump to a brighter setting--never dimmer. Everything's turned up all the way and I've followed the internet's instructions to disable all the adaptive settings that change the brightness. Still happening, so I'm suddenly concerned it might be a hardware issue. Any insights?
Thanks!

That's good news.
The new account is using information from a brand new Preferences file which is unaffected by whatever made yours misbehave.
Do this: Go to the Finder and select Go to folder like so:
then type library like so:
oops, posting too fast... stand by while I edit this...
As I was saying...
Click Go, then find the folder called Preferences and open it. Then find the files called
com.apple.universalaccess.plist, and
com.apple.systemsound.plist
and drag them both to the Trash.
Log out.
Log in again and open System Preferences > Universal Access. Configure all four tabs the way you want, then close System Preferences.
Does that fix things?
Message was edited by: John Galt

Does setting the screen brightness to the MAX shorten the life of the LCD?

On daytime I set it to about 80%. That's bright enough.
Also, another thing I noticed was I tried to cover the speakers with my hands. The keyboard lit up a little bit but the screen dimmed down. Is it normal?

While setting the brightness to maximum doesn't shorten the LCD's actual lifespan it does however, I believe, speed up the degradation on how bright your screen will be.
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What is the default screen brightness setting and keyboard backlight brightness default setting, and how to you go back to default?

What is the default screen brightness setting and keyboard backlight default setting? I just got a new Macbook Air and fiddled a lot with it, and now just want to know how to set the brightness levels back to default. Thanks everyone!

Hey sberman,
I maxed out the screen brightness before I clicked on "restore defaults" in system preferences> energy saver (which has to do with battery, not exactly screen brightness) to see if the screen went back to a "normal" brightness level, but it didn't. I don't think it restored the brightness to default..

Long delay after startup before screen brightness, volume buttons work

I just started noticing this in the last few days. After I start up, it will be 4 or 5 minutes before I can adjust the screen brightness or volume using the F keys. Also, I noticed that I can't do a "Force Quit" during this time - either by doing the keystroke or by going to the Apple menu. After this "dead period" is over, if I've enacted any of the aforementioned activities, they will appear on the screen all at once.
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Can someone help me troubleshoot this?

Hi, and a warm welcome to the forums!
How much Free space do you have on what size HD?
Might give a try with Applejack...
http://www.versiontracker.com/dyn/moreinfo/macosx/19596
After installing, reboot holding down CMD+s, then when the DOS like prompt shows, type in...
applejack AUTO
Then let it do all 5 of it's things.
At least it'll eliminate some questions if it doesn't fix it.
The 5 things it does are...
Correct any Disk problems.
Repair Permissions.
Clear out Cache Files.
Repair/check several plist files.
Dump the VM files for a fresh start.
Or, you can do some of those things another way...
"Try Disk Utility
1. Insert the Mac OS X Install disc that came with your computer, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu. (In Mac OS X 10.4 or later, *you must select your language first.)*
*Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.*
3. Click the First Aid tab.
4. Click the disclosure triangle to the left of the hard drive icon to display the names of your hard disk volumes and partitions.
5. Select your Mac OS X volume.
6. Click Repair. Disk Utility checks and repairs the disk."
Then Safe Boot off the HD & use Disk Utility from there to Repair Permissions, reboot once more.

Screen brightness is set at 100% at startup

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