Screen brightness changes?

my touchsmart running windows 7. if I don't use the mouse or touch the screen for a short period of time, the brightness lessens. I have to move the mouse or touch the screen to restore the original brightness of the screen. this can be annoying when watching a movie on hulu, or reading lengthly articles. How do I stop this from happening?

Sounds like a Windows 7 setting -- I see the same thing on my (non-touch) HP laptop.
Try searching for:
power options
from the start menu and seeing if there are screen display / monitor settings you can change.
http://www.microsoft.com/windows/windows-7/features/power-management.aspx

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MBP 2011 Screen brightness changing regardless of the ambient light

As stated in the subject my brand new MBP 2011 screen brightness changes on its own, yes i know about the ambient light sensor, but my screen is going from med brightness all the way to minimum brightness even though the ambient light is constant. yes I know i can turn it off, but why build in an ambient light feature that just makes the screen go to mimimum brightness when in a well lit room??
or do i have a faulty one??

I too have this problem on my spanking new MacBook Pro. Called AppleCare and they said they weren't aware of this issue.
Meanwhile, this is my 1st mac. Had it for a few weeks now. Decided to open iTunes for the 1st time. The whole MacBook Freezes, no mouse interactivity, reboot required. This happens EVERY time I start iTunes which I no longer do. Apparently it's a known issue which Apple has patched(unsuccessfully). But hey c'mon, I mean iTunes? This is one of the core apps which SHOULD be tested extensively against the hardware. When you consider Apple PROVIDES the hardware, this is simply unacceptable. Unbelievable even. I simply can't believe how poor this is from a major company. But hey my MacBook Pro LOOKS GOOD right, so who cares if it's a technically malfunctioning piece of junk.
Here's my theory. Is part of Apple's patch deliberately reducing screen brightness without user authorisation when the MacBook starts to overheat, all because they know they've been incompetent/negligent with their QA testing and the hardware can't handle the software? If so, why have users not been informed?
I'm from Australia and we have this so-so comedian called Chris Lily who fans have taken to calling a genius, the joke amongst non-fans being the word genius has been dumbed down over the years to be almost meaningless. Anyway, maybe a certified Apple 'genius' can explain the reasoning for the apparently deliberate brightness reductions?

HP 15-d103tx Notebook screen brightness changes

My new HP 15-d103tx Notebook's screen brightness changes its own. Pls suggest a solution for the same.
jspnes

Hi jspnes,
Welcome to the HP Support Forums!
I understand that computer's display screen randomly changes the brightness. I will try my best to help you with this.
I suggest following the steps in this document for Resolving Problems with the Brightness of the Display.
If this does not resolve the issue, could you please tell me what operating system you are running on the Notebook.
I hope this helps, please let me know if this resolved your issue.
Good luck and have an awesome day!
I worked on behalf of HP.

Screen brightness changes without me doing it

I just bought a refurbished HP Pavilion TS Sleekbook 15. I am loving it except the screen brightness changes without me doing anything and it is driving me crazy!! It dims and brightens sometimes when I click on something and other times for no apparent reason. Any help would be greatly appreciated.
This question was solved.
View Solution.

Hi Angeliize, and welcome to the HP Support Forums!
I understand that you are having a problem with the display screen brightness dimming without you changing it. I will try my best to help you with this issue. To better assist you, could you please tell me the whole model number of your computer and the operating system that is running on it. Here are some guides for How Do I Find My Model Number or Product Number? and Which Windows operating system am I running?
The dimming could be related to the power settings on your Sleekbook. Here is a document for Disable Auto-Dimming of the Screen on Your HP Laptop that has steps for changing the dimming settings.
I hope this information helps, please let me know how it goes.
Good luck and have a great day!
I worked on behalf of HP.

Screen brightness changes on its own

My laptop screen brightened all of a sudden on its own, 1/3 - 1/2 EV. I was editing a photo in PSCS3 when this occurred, the photo was from Lightroom. The brightness change effected everything, not just PS. For the past several days I've been editing photos in LR & thought I had the tone adjusted pretty good on all the photos. Today when I looked at the photos again, I felt like I needed to brighten then up some. After making exposure/brightness/tonecurve adj. to the photos today, I needed to do editing in PS, and as I was editing, the screen made a brightness change. I recalibrated the monitor & the brightness stayed the same. How could the previous monitor profile be turned off & all of a sudden turn itself back on. Windows Vista on Sony Vaio laptop (yeah I know I need something besides a laptop screen to edit photos). This probably has nothing to do with PS but I thought I would try on this forum as it's usually very helpful. Perhaps you can suggest another forum that might help. Thanks!

Sometimes a power management scheme will kick in on a laptop and change the monitor brightness. When editing you should always work with external power connected and all settings set at Never for that state.
And, if you're serious, get a good monitor!

Xperia z1 compact screen brightness change itself even auto brightness is disable.

xperia z1 compact brightness change itslef even when i have turned off the auto brightness. for example, the brightness becomes dimmer when the overall display colour is dark or black colour and it becomes brighter when the ovrall display colour is white or bright colour. i mean im able to notice there is a slight change in display brightness when im viewing photo, watching videos or surfing inernet. the brightness just change itself even when i turn off the auto brightness.

Hi and welcome to the community! Since you're new please be sure that you have checked out our Discussion guidelines.
This sounds like the optimized backlight that the phone uses. See the following topic for more information:
http://talk.sonymobile.com/t5/Xperia-Z1-Z1s/Last-page-of-the-app-drawer-is-dimmer/m-p/682661#M25753
What are your thoughts about this forum? Let us know by doing this short survey.

Screen brightness changes between standbys

I just received my new Macbol Pro C2D after realizing that the Macbook, just didn't have enough graphic power. And the quality of the screen was suspect, considering all f the ghosting.
But I noticed that when I start up my macbook from a sleep, the brightness often changes. The only thing i can hope it is is that the laptop is trying to be helpful by adjusting it's brightness to suit the the current envionment; because it has to have a light sensor because of the keyboard black light. But I would rather it didn't do it. Or is my laptop just broken?

This is usual behaviour and is drriven by the ambient light sensor. You can turn this behaviour off in the Displays System Preference.

Screen brightness changes unexpectedly?

When adding my contacts I noticed the screen brightened itself while I was performing text entry. While using Safari and entering some data into a text box this morning the screen brightened itself again to the same level as yesterday's auto-brightening. Has anyone else seen this?

I have the same issue with my 16Gig (white) 3G.
With auto-brightness set to on, the iPhone's display will bloom even in a completely dark room. If the sensor in fact worked properly, I would think the display should stay "low".
My old 1st gen iPhone would keep the brightness down in a dark room, and only increase if it sensed ambient light. The iPhone 3G will bloom at the most oddest times, and not increase at times when there is considerable ambient light. When it refuses to increase, I have to manually increase the brightness, even though auto-brightness is set to on. Other times I think there's no rhyme or reason to it.
I'm hoping this can be addressed in a software update, rather than having a defective ambient light sensor. I don't know why they changed it from the 1st gen, as that one appeared reliable and worked as intended.

U510 Screen brightness changing based on color of the windows on the screen

This is really bothering me because I have a few applications which natively have very dark color pallets.
When I have an open desktop, which is basically a white wallpaper with a logo on it and the task bar my laptop has the brightness that I want. But then if I bring Sublime Text up and maximize it, Sublime Text has a very dark themed GUI, my screen becomes darker on it's own and I can see thr transition.
I have disabled adaptive brightness, I have disabled "Display Power Saving Technology" within the Intel HD Graphics Control Panel (and pretty much everything else in it as well), I have stopped the Adaptive Brightness sensor process, I have uninstalled anything that looked like bloatware or unnecessary-control-panel-ware, and I have updated to the most recent version of the Intel HD drivers. Nothing has resolved this. I'm starting to think the only way to solve this is a fresh OS install and even then I don't know if that will do it.
I have literally spent hours trying to figure this out.

Hello,
since there was no solution in here to fix that auto adjustment to either color contrast or brightness, I will tell you how I fixed mine.
I have lenovo ThinkPad T431 with windows 7
go to
Control Panel -> Intel HD Graphics and media ( this is what I have as driver ) -> Advance (or Basic) Mode -> Power
I just changed both setting for "Plugged in" and "On battery" so that the power plan is set to
Maximum performance.
with the addition for "On batter", I unchecked the 2 settings in the section "Power Conservation Features"
then
Apply and wollaha everything is great no more auto adjustment when I am viewing light or dark website or applications.
I hope this works for anyone who had suffered from this feature from Intel HD Graphics Driver.

Random changes in screen brightness every few minutes (while working)

I am beginning to become unhappy with my new Thinkpad Twist. The laptop was just delivered and no changes to the setup were made.
The screen brightness changes while I use the device in an unpredictable way which is just annoying to me.
I prefer to work with full screen brightness and disabled the energy saving settings that would dim the screen after some minutes of inactivity. Still the screen just dims from time to time (also while I a am working) and also changes back to full brightness in a similarly unpredictable way. Those changes in brightness might take some minutes between them...
Do you have any ideas what software settings I should consider?
Also, the laptop appears to have an ambient light sensor. Could those changes in screen brightness be related to this sensor? FYI: Light conditions remained the same, no turning on or off the lights. Covering the position of the sensor did not induce any reaction.
Any ideas?
Solved!
Go to Solution.

Took me a while to find this but I believe this is the order of menus, links and drop downs to get to this feature.
Control Panel / Power Options / Change Plan Options / Change Advanced Power Settings / Display / Enable Adaptive Brightness / OFF / OFF

Screen brightness

When I use Fn keys or when I use xbacklight -inc 40, the following file is modified : /sys/class/backlight/acpi_video0/brightness, but the screen brightness is not changed.
If however I change /sys/class/backlight/intel_backlight/brightness the screen brightness change according to the number I write.
How can I make Fn keys or xbacklight -inc 40 actually change the screen brightness (/sys/class/backlight/intel_backlight/brightness) ?
Last edited by Gradient (2013-06-07 02:41:30)

On my system I have to use acpi_osi="!Windows 2012" but some report that using acpi_osi=Linux also works. https://wiki.archlinux.org/index.php/In … ter_resume.

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

Screen Brightness on iphone 4s

My iphone 4s has had a problem after i upgraded to ios 6 , the screen can be at one moment fully readable with the adjustment on brightness set to the middle ,,and then its light is off , checking the brightness its reset itself to no brightness , this happens with the auto switched on or off , i have hard reset the iphone , used itunes to do a restore and have set it up as a new iphone but the problem will not go away. Even on the charger i have the brightness set to mid way and when i take the phone off the charger the brightness bar moves to no brightness , i have one time had the screen on the brightness settings and watched the brightness bar lower to no brightness , this is with the auto brightness option switched off , this also happens with the auto brightness switched on as well.
All these problems happened after upgrading to ios 6 , the one thing i did notice after the first upgrade was the screen itself had a higher brightness than before , now the phone mostly sits at home as i cannot use the iphone as the screen brightness changes so much its become a pain to use , so i have to use my wifes samsung galaxy s3 , any ideas on how to sort this problem out or is it a trip to the apple store to get a new iphone 4s ?

I've upgraded to iOS 7 and I have the issue on an iPhone 4S. I can't remember this happening on iOS 6, but there may have been one or two occassions where it did. So, with regards to Julia98765's post above, in my case it just got a whole lot worse with iOS 7, much as I love everything else about it!
The screen starts off on my normal brightness level (auto is off), and then anywhere between a few minutes to just a few seconds, the screen goes totally dark, like it has been slid to the minimal brightness setting. From then on, the screen fluctuates wildy, sometimes snapping back to full normal brightness, but mostly just dim flickering until it decides to settle down in its dim state, or if it has been locked for a few minutes by which time it is showing normal brightness levels again.
Then the whole thing repeats itself. This happens in one form or another pretty much every time I use my phone! The only thing I haven't tried yet is restoring the phone through iTunes so will give that a go and report back soon.

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.
Thanks again,
Keith.

Palm Tungsten E2 screen is fading, screen resolution changed

Since yesterday, the screen of my Palm Tungsten E2 is fading out, I have hard time to see the Apps on the screen and the writting on Memo or any Apps, all pictures on media are blurry, it's like the screen resolution has changed, even the introduction Palm 1st screen is un-readable, blurry.
Thank you for any help if there is any.

Hi and welcome to the HP Support Community.
It doesn't sound like it, but maybe the screen brightness changed somehow. Tap the brightness icon (the little "sun" looking icon in the top right corner of the graffiti area) and adjust the brightness.
Assuming that does nothing, try a soft reset by pressing the Reset button on the back of the device.
As a last resort, you could try a Hard Reset (after making sure you have a backup of everything).
But your description suggests a hardware issue. You could contact Chris Short at palmdr.com who repairs Palm devices and sells refurbished ones on eBay.
Good luck, hope this helped some.
smkranz
I am a volunteer, and not an HP employee.
Palm OS ∙ webOS ∙ Android

Screen brightness changes?

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