X230 display brightness changes automatically

Hi,
I have a problem when I'm using my X230 from battery: every know and then the display brightness changes, it gets lower (even without any user activity). Also it seems that the color profile also changes, colors look washed out. After few minutes or sometimes seconds, it goes back to normal. However, I have this issue quite often.
Is there a solution? Is it something to do with my power settings?
Thank you.
Solved!
Go to Solution.

zombyorc,
Try the following.
http://forums.lenovo.com/t5/W-Series-ThinkPad-Laptops/Disabling-Auto-Screen-brightness-on-Intel-HD-G...
or
http://forums.lenovo.com/t5/T400-T500-and-newer-T-series/T410-screen-brightness-dims-washes-out-on-b...
*Non Lenovo employee*
I have a Y2P (i5) ... Feel free to ping me if you want me to test some applications with your Y2P if you have the same model. I don't mind keep doing recovery on it if needed .... =)

Similar Messages

Unexplained display brightness changes

After a search of the forums, I understand that this issue has been floating around for a couple of years. I haven't found any explanations or resolution.
I have an iMac G5, 1.6GHz. The computer seems fine in most respects except for one annoying "feature". Whenever I wake it from sleep or start up in the morning, the brightness has reverted to the lowest setting. I think I've tried everything from zapping the PRAM to tossing the display preferences. It's annoying because I constant have to use the F15 key to bring it back up. Has anyone ever solved this problem? It doesn't appear to be a video card issue because I don't need to crank the brightness for it to look correct.
TIA

Have you tried resetting the SMU?
See if your model computer qualifies for one of the G5 iMac Repair Programs
**WARNING: DUE TO SECURITY REASONS, PLEASE DO NOT POST YOUR COMPUTER'S SERIAL NUMBER ON THESE MESSAGE BOARDS.**

Display Brightness Changes

My wife's iMac 17" G5 has recently had some problems with the Brightness setting. When she turns on the iMac, the Brightness is set to the lowest setting. She can re-set it to the highest setting, but more and more frequently, when she turns it on, it's once again at the lowest setting. I haven't been able to find anything that would cause this, and it's pretty much a standard install.
The only non-standard item that she has on it is an eyeTV firewire tuner, but that has always been connected.
Has anyone else experienced something similar?

zombyorc,
Try the following.
http://forums.lenovo.com/t5/W-Series-ThinkPad-Laptops/Disabling-Auto-Screen-brightness-on-Intel-HD-G...
or
http://forums.lenovo.com/t5/T400-T500-and-newer-T-series/T410-screen-brightness-dims-washes-out-on-b...
*Non Lenovo employee*
I have a Y2P (i5) ... Feel free to ping me if you want me to test some applications with your Y2P if you have the same model. I don't mind keep doing recovery on it if needed .... =)

Automatically adjust display brightness via Terminal / Pretty good solution

This hint is for all of you who experience any problem with the adjustment of the display brightness.
*Short version*
After a cold and/or warm start, it sometimes happens that the brightness was changed by the system itself to its dim power saver setting or maximum value and sometimes - what a big surprise - remains as it has been configured.
I had spotted plenty of articles about this phenomenon, but none of them yielded a solution. I then decided to solve this problem by going the pragmatically way and use some kind of software which dims the display to my preferred setting. And the winner is: brightness.
This tiny program works perfect and you will love its benefit by using it in terminal - yes, brightness is a command line utility. On top of this, brightness is able to control different displays, internal and external. The clou: beside using the precompiled binary you can also download the source code here, modify it to make the program fit your needs and then compile it using Xcode.
1. Installation
Download a precompiled version of the command line utility brightness here and extract the binary to your desired path (e.g. /usr/bin).
2. Usage
"brightness -l -v" dumps the current display attributes (-v for verbose mode) while "brightness 0.5" modifies the brightness of the main display to half of its max value and "brightness -m 1 1" let a second display become shiny. Just play little bit around.
3. Automatically launch
Simply create a .plist file and drop it, for example, in ~/Library/LaunchAgents. Or make use of an AppleScript or a Terminal Script to let it launch.
That's it. Comments are welcome.
*Long version*
It seems to be, that the adjustment of the display brightness of an iMac and MacBook/Pro (maybe also other models are affected) drives a life of its own. After a cold and/or warm start, it sometimes happens that the brightness was changed by the system itself to its dim power saver setting or maximum value and sometimes - what a big surprise - remains as it has been configured.
I had spotted plenty of articles about this phenomenon, but only found terms like "Did you already disabled the ambient light sensor", "Did you already reset the PRAM?", "Did you already reset the NVRAM?", "Did you already…BLAH". Far from it, all of these tips have one thing in common: none of them yielded a solution. As a last resort, I thought, it was a good idea to install 10.6 from the scratch just to find out that the above mentioned phenomenon occurs right after a few days of using OS X.
I then decided to solve this problem by going the pragmatically way and use some kind of software which dims the display to my preferred setting. There are a few applications to do this, but always it was necessary to drag a slider or type in a value to dim the display, so none of them allowed an automatic configuration. No, I am not a very sophisticated person, I only prefer to use software which is simply well-thought-out. And the winner is: brightness.
This tiny program works perfect and you will love its benefit by using it in terminal - yes, brightness is a command line utility. On top of this, brightness is able to control different displays, internal and external. The clou: beside using the precompiled binary you can also download the source code here, modify it to make the program fit your needs and then compile it using Xcode.
1. Installation
Download a precompiled version of the command line utility brightness here and extract the binary to your desired path (e.g. /usr/bin).
2. Usage
"brightness -l -v" dumps the current display attributes (-v for verbose mode) while "brightness 0.5" modifies the brightness of the main display to half of its max value and "brightness -m 1 1" let a second display become shiny. Just play little bit around.
3. Automatically launch
Sure, OS X provides different ways to launch a program automatically. If you are an enthusiast, feel free to use the one you prefer and stop reading, because you are already finished. If you are not that familiar to OS X take the next step as an advice.
An easy way to trigger OS X launching a program automatically is to add the desired program to your Login Items. But, in this case, it will not work the easy way, because we have to launch a so called classic command line utility with a given option. It is not like starting Mail or iCal, which appears as typical applications to OS X. You must start brightness via Terminal by typing "brightness 0.5" (without quotes) to modify the main display brightness to half of its max.
We now use a Launch Agent. Just create a .plist file, e.g. com.brightness.plist, with your favorite text editor. For the lazy ones here comes the template (simply copy and paste):
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Disabled</key>
<false/>
<key>Label</key>
<string>com.brightness</string>
<key>ProgramArguments</key>
<array>
<string>/usr/bin/brightness</string>
<string>.5</string>
</array>
<key>RunAtLoad</key>
<true/>
</dict>
</plist>
Save the file in ~/Library/LaunchAgents, if you want brightness to be executed everytime you log in.
You could also use an AppleScript. Copy and paste this code "do shell script "brightness 0.5"" (without the leading and closing quotes) to a new Script. Then choose Save As and enable the Option to make it Execute only. Now add the Script to your Login Items.
Another option is to use a Terminal Script. Copy and paste this code
#!/bin/bash
/usr/bin/brightness 0.5
exit 0
and save it as, for example, brightness.sh. Make the Script executeable and add it to your Login Items.
That's it. Comments are welcome.

Thanks. Works great. I made a ScriptBundle and a User Agent (launchd) . So if someone sets the display brightness to maximum, it automaticaly corrects it at next login.
The ScriptBundle contains your mentoined command line utility and the following applescript:
do shell script quoted form of (POSIX path of (path to resource "brightness")) & " 0.7"
Be aware of the space in " 0.7" or whatever value you have set.

Is there a way to connect the Apple TV as a second display without it automatically changing my Mac's audio output?

Is there a way to connect the Apple TV as a second display without it automatically changing my Mac's audio output? I would prefer to use an audio interface for playback and the apple tv as a third display. I know I can go back to system preferences and swap my output back manually, but it is getting to be really inconvienient. Thoughts?

Hi and welcome to Discussions,
have a look at ScreenRecycler http://www.macupdate.com/info.php/id/22908/screenrecycler
Regards
Stefan

Brightness changes on display

Hi
I've got a Macbook pro 13 inch 10.7.5 from mid 2011. I've noticed over the past week that my brightness setting will randomly automatically go down a few levels even when I'm plugged in. I've got my sleep settings set for 1 hour, but this will happen only minutes after setting my brightness level back to my perferred setting. As far as I can tell in the energy saver options I've got them off, and don't have screen saver on...so not sure why this is happening. Any ideas?
Thanks

It may be happening because your computer sets up the brightness automatically. To do it, open System Preferences > Displays, and untick "Automatically adjust brightness"

X201: display randomly changes brightness + some other minor issues

Hi there!
Just registered to get some info about those issues i have with my x201 thinkpad.
MAJOR ISSUES:
Sometimes the display lowers its brightness level to ~50% (you can see the "steps" just like when you press fn+end), just to become immidiatly after that EXTREMLY bright, you barely can't read written text anymore. After this state, it slowly recovers back to normal (usually full brightness, level 15 i think). Takes about a minute to fully recover.
I am not able to reproduce this issue, though it seems that it happens frequently when watching flash videos in fullscreen mode, but it isn't limitet to that at all, if anything. It happens every now and then "when the notebook feels like it".
I would call it a major issue, because it really annoys me every time(hey cool, my new notebook's display gonna crash any minute!).
Pressing fn+f8 seemingly doesnt work at all. In the official lenovo x201 manual this button sequence, like it is imprinted on my keyboard, isn't even descriped. i guess, this combination should stop the fan. I am really eager to get info on that!
This step goes along with the former one and rather is a question: is it possible to prevent the fan from even starting? when i programm or write papers, i don't need any cpu usage or anything, though still the fan keeps running.
MINOR ISSUES:
*WLAN LED went off and so did my WLAN card. It just went off and needed a restart. Only happened once.
*Notebook went into standby and wasn't recoverable from it - no button would wake it up. Happened a couple of times after i got the notebook early april.
*High pitched noise originating from the fan/cpu, though it is not the fan! Sounds like an A/V adapter, so i guess its the capacitors or something and not fixable. At least about that issue i found something on this board.
*Sometimes the fan goes to full power just to go back to normal. for no reason! analogies to the display's brightness change are freely interpretable
Excuse my english, i don't think everything is proper there!
i just wanted a professional notebook ... atm this isn't the case.
I disabled Multi-Core in BIOS so i don't have regular lags.
I always keep energy saving settings to "Maximum Performance" so i don't have regular contrast issues.
I deinstalled ThinkAdvantage Access Connections so i don't have random WLAN Adapter "power offs".

The change in brightness is controlled by an inactivity (idle) timer. It dims the screen, preserving battey and extending the LCD life after X minutes of inactivity. To change (or turn off) this behavior, open Power Manager, swich to Advanced view, and under each power scheme, choose the "Idle Timers" section and edit "dim display" and "dimmed display brightness." If you don't like the feature, maybe just make "turn off display" a shorter time and "
dim display" to zero (never) so it jut turns off the monitor instead of dimming.
The other reply is right - having a touchpad was an option on the x201. For those who have both touchpad an trackpoint, FN-F8 toggles them on and off. They just didn't make a whole seperate keyboard with hat blue icon blacked out But you're right, it looks like a fan. I think arrows eminating from a dot would better represent the trackpoint.
And right - don't stop your fan from running! Unless it's going wacky like toggling off/high-speed every 2 seconds, it's just doing its job of keeping your CPU and other components cool so they don't die. There is a third-party fan controller here that ay give you more control, but it's not officially tested on the x201 yet.
Save for your other minor observations, this is most definitely a professional notebook. You need look no further than the hinges (no to mention the built-in keyboard light) for proof.
Enjoy

Brightness issue-automatic dimming

Hi everyone,
I just bought my 20' inch iMac 2 months ago. I've done some updates before but the last time that I did it was like 2 or 3 weeks ago.
I used to keep my brightness level at the maximum. I don't know why but suddenly and randomly my iMac monitor's brightness would automatically become dim all the way down now. I tried adjusting the brightness level in System Preferences > Display but fails. Every time I drag the level of brightness bar back to the right, it'll then automatically go down. Pressing the F2 key on the keyboard is also useless, there is simply no response. The only way to be able to keep the brightness level bar at the far right hand side (i.e. maximum) is to change the display resolution to a lower one and then bring it back up again to the highest. This is quite annoying.
It happens randomly. So sometimes I've been using the iMac for like a couple hours and all is fine. Sometimes this happens like 5 mins after I start it up. I really don't know what to do. Please could anyone kindly help?
Thanks a lot! I truly appreciate.

Mine does the exact opposite. I put my brightness at the lowest setting to keep the computer from getting so hot, and after the display goes to sleep, it is back at full brightness. I lower it either in the preferences or using the keystrokes. Still goes back to maximum.

Screen Contrast Too Bright - Changed Itself

My mother-in-laws AIO computer monitor is too bright. The contrast changed automatically. No updates were done. I ran diagnostics, changed monitor settings, reset defaults. Nothing is changing the end result. Is the monitor just dying? It's an all-in-one. It is less than three years old and not used very hard. What else can I try to troubleshoot? I was going to hook up a second monitor, but b/c it is a AIO I don't believe it has a cable to plug in a 2nd monitor.

This is weird. All I did was squeeze the case near just at the top of the LCD display and the lit screen SUDDENLY had the written display again. As I said the ipod worked but I did not have a written display. With that little trick the ipod returned to normal. About a week later , the ipod had a relapse and squeezing the case dont remembe whether it was the left or right side, brought it back to life and it has behaved itself for the past 3 months. I hope this information is useful to others with the same problem who do exist.
Ted

Stuck display brightness

Hello,
Automatic display brightness adjusting on my mid-2010 13" MacBook Pro somehow gets stuck. For example, when I work in bright room and put the computer to sleep (close the lid) the brightness level remains high when I wake the computer in darker ambience. The same happens in opposite direction, when the computer goes to sleep in darker room and wake in brighter, the screen brightness remains at low settings. Is there a way to reset the system to default brightness settings? I was satisfied with default behavior of automatic illumination and all these problems arise after I manually adjusted brightness using F1-F2 keys. Otherwise, illumination adjustments work when I cover the sensor. I can notice screen going darker or lighter when room lighting conditions change.
I tried resetting SMC, but it didn't fix the problem. Do you have any suggestions?
Aleksandar

Related post: http://forums.lenovo.com/t5/Windows-7-Discussion/Brightness-unadjustable-for-quot-High-Performance-q...
[Quote]
A link to the 3.09/3.10 version of BIOS is given below. Good luck. This is the version I used.
http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-70351
[End Quote]
T500 BIOS Update: http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-70353
~ sierra42 ~
HP TC4400
Lenovo T500
-- I am not support, I'm just trying to help! --

LCD brightness level automatically reset

Dear Experts and other user,
Started from yesterday, my T61 laptop LCD brightness level automatically reset to lower in everytime i started it. I needed to manually tune up the brightness level.
The laptop is firmly connected to the AC power. And i have did nothing under the Windows system. Is it any hardware issue or software configuration issue?
Many thanks with your attention and advise.
ED

My "energy saver" pref does NOT have the options for "Automatically reduce the brightness of the display before the display sleeps" item mentioned above. It has only the 4 following entries:
Wake Options:
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-Restart automatically after a power failure
This option does show up in the help file and I am imagining that I either don't have the hardware to support it or it is geared for laptops.
I have tried using the terminal to issue a pmset command (logged in as root of course) to see if I could affect this behavior.
pmset -a lessbright 0
pmset -a halfdim 0
neither of them showed up in the file:
/Library/Preferences/SystemConfiguration/com.apple.PowerManagement.plist
contents:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>Custom Profile</key>
<dict>
<key>AC Power</key>
<dict>
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<integer>0</integer>
<key>Disk Sleep Timer</key>
<integer>180</integer>
<key>Display Sleep Timer</key>
<integer>69</integer>
<key>Sleep On Power Button</key>
<integer>0</integer>
<key>System Sleep Timer</key>
<integer>69</integer>
<key>TTYSPreventSleep</key>
<integer>1</integer>
<key>Wake On AC Change</key>
<integer>0</integer>
<key>Wake On Clamshell Open</key>
<integer>1</integer>
<key>Wake On LAN</key>
<integer>0</integer>
<key>Wake On Modem Ring</key>
<integer>0</integer>
</dict>
</dict>
</dict>
</plist>

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Filip

Hello Gnazty,
Thanks for using Apple Support Communities.
I'd like you to reset your SMC and PRAM as the articles below describe:
OS X Mavericks: Reset your computer’s PRAM
http://support.apple.com/kb/ph14222
Intel-based Macs: Resetting the System Management Controller (SMC)
http://support.apple.com/kb/HT3964
Take care,
Alex H.

X230 display brightness changes automatically

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