T500 can't adjust brightness after standy by or hiber.

New T500 and as soon as I receive it, I upgraded to windows 7. Don't know if it is ok in Vista.
Reboot is ok. I've updated all the drivers for bias, hard-disk etc. still the same, I notice there are some other post report this problem, any solutions? Thanks.

Forget to say:
It is: 2242CTO, S/N:******-09/05
Moderator edit: Masked serial number so that nobody is tempted to do anything scurrilous with it.
Message Edited by bananaman on 05-24-2009 06:03 PM

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Can't set brightness after screen blanking

After last update, I can't set brightness after the screen goes off because of inactivity, before that everything works normally.
When I reboot brightness setting works, as is after suspend/unsuspend.
The laptop is Dell Latitude D830.
Any ideas?

b4d wrote:
After last update, I can't set brightness after the screen goes off because of inactivity, before that everything works normally.
When I reboot brightness setting works, as is after suspend/unsuspend.
The laptop is Dell Latitude D830.
Any ideas?
Can you share your kernel version and graphics controller information, please? I had a similar issue with my graphics controller after upgrading to the 3.x kernel in core.

Can not adjust brightness and minimize and maximize the screen with Fn keys

I have bought a HP 15-D006TU laptop 1 week back. f2 and f3 for adjusting brightness and f4 to minimize and maximize the screen are not working. I am also trying to install the Hotkey driver which is mostly suggested here. but the version available is not supported. Can anyone help me out in this case?

Hi NIdisha,
Thank you for your post, I will do my best to assist you.
I understand that you are experiencing an issue with the brightness and the fn keys. When I looked up the specifications, I see it came with FreeDos. I am providing you links, to the software and driver page for your computer,HP 15-d006tu Notebook PC Drivers and Frequently Asked Questions About FreeDOS (FAQs). Please note the compatible keyboard driver. I would suggest you uninstall and reinstall the drivers for the keyboard. I am also providing you a document on Notebook Keyboard Troubleshooting (Windows 8), that may assist you. If you would like furhter assistance, please let me know if you are still running FreeDos, or have changed the operating system.
I hope this has helped.
Sparkles1
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
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Lenovo z570 and Fedora 15 - can not adjust brightness.

When I installed fedora 15 on lenovo ideapad z570 all goes ok. but I can not adjust screen brightness. I updated kernel twice upto 3.0.1 but still problem persists.
Please give me a solution.
CPKulkarni

This is a known bug in the power manager logic within fedora 15. They are testing the package before it makes officially to the repository.
If you want to try it, out run the following command in the bash shell
su -c 'yum --enablerepo=updates-testing update gnome-power-manager'
Also try to disable screen dimming via the control center. Hope this helps you out
Cheers and regards,
• » νιנαｿѕαяα∂нι ѕαмανє∂αм ™ « •
●๋•کáŕádhí'ک díáŕý ツ
I am a volunteer here. I don't work for Lenovo

L520 - Can't adjust brightness

Another problem on my Lenovo Thinkpad L520:
After installing the Lenovo Power Management Driver, I can no longer adjust the LCD brightness by using the FN+DEL/POS1 keys.
Immediately after adjusting the brightness, it gets reverted to its old value, set in the Power Management software.
I tried the Windows 7 driver (1.65.05.21) and the WIndows XP/7/8 driver (1.66.0.22), both with the same result.
This is really annoying and I am very frustrated with Lenovo right now, since this is not the only problem I am having with the laptop.
I tried calling the customer support, where an automated message directed me to their support forum.
Does anyone here have a solution for this?
Solved!
Go to Solution.

schalli wrote:
Another problem on my Lenovo Thinkpad L520:
After installing the Lenovo Power Management Driver, I can no longer adjust the LCD brightness by using the FN+DEL/POS1 keys.
Immediately after adjusting the brightness, it gets reverted to its old value, set in the Power Management software.
I tried the Windows 7 driver (1.65.05.21) and the WIndows XP/7/8 driver (1.66.0.22), both with the same result.
This is really annoying and I am very frustrated with Lenovo right now, since this is not the only problem I am having with the laptop.
I tried calling the customer support, where an automated message directed me to their support forum.
Does anyone here have a solution for this?
The same happened to me on a L520 5016-C74 (Win7X64).
I was able to resolve it without losing the functionality of the Power manager.
The steps are as follows:
1) If you have used the System Update utility, you will need to download from "Softare and Utility" the "Hotkey Features Integration for Windows 8 (32-bit, 64-bit), 7 (32-bit, 64-bit), Vista (32-bit, 64-bit), XP (32-bit, 64-bit) and 2000 - ThinkPad".
2) Install the Utility, update everything it suggests, and install whatever component you might miss from the four available (Lenovo Patch Utility, On Screen Display, ThinkPad Full Screen Magnifier, Lenovo system Interface Driver)
3) The installer will ask you to reboot. Comply.
4) Rerun the Installer (it will be placed in C:\DRIVERS\HOTKEY\Setup.exe)
5) Select the second option "Uninstall currently installed....)
6) Select to uninstall ONLY the "Lenovo system Interface Driver"
7) Reboot again and try the luminosity keys. You will not have OSD though, but everything else works, full functionality of function keys and Power Management with no problems.
Please let me know if this worked in your case.
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L675D Windows 8.1 Display Fix (Can't adjust brightness in settings charm)

I performed a clean install of Windows 8.1 Professional 64-bit (courtesy Dreamspark), and I noticed that I could not adjust the brightness setting using the "Settings" charm or in the control panel (in the charms-bar the brightness setting was greyed out). My exact model is L675D-S7013, and the specification states that the laptop has an ATI Mobility Radeon HD 4250 Graphics [card]. The "Automatically Detect and Install Your Driver" tool (from their website: http://support.amd.com/en-us/download) was unsuccessful, so I instead downloaded the Windows 8 x64 AMD software at: http://www2.ati.com/drivers/legacy/13-1-legacy_vista_win7_win8_64_dd_ccc.exe and installed it using the defaulted options and it seems to be working fine. It also fixed the screen resolution. Note that this was done after installing all available updates from Windows Update.

Satellite L675D-S7013 (PSK3JU-00P001)
Downloads here.
Toshiba does not support that model for upgrade to Windows 8.1.
Computers with Windows 7 pre-installed that are supported by Toshiba for update to Windows 8.1
Some here with Windows 8.1 would kill to downgrade to Windows 7! Read the messages.

Can't Adjust Brightness Using F1 and F2 Keys

My MBP was having difficulties starting up today (stalling at the grey screen w/ the Apple symbol) so I ran Disk Utility to repair, and everything seemed to be fine.
But now all the pre-set function keys are working save the F1 and F2 keys. I've tried pressing the fn keys before, but I am still not able to adjust the brightness. I also tried resetting the PRAM, but that did no good either. Currently, all the other function keys are doing their pre-set commands -- I didn't change any of them. What can I do to get the F1 and F2 keys working again?
Thanks!

My guess is that something you've installed is playing havoc with your system. When you reinstalled Lion you probably didn't do a clean install, thus the problem continued. Try creating a new user, then work in that acoount for a while. If the problem stops, you know the problem exists in your user account only. If the problem continues, its system wide and will require a clean install and reinstallation of your software.

Can't Adjust Brightness in Windows 7

I recentlly installed win 7 rc on my G530 and i cannot adjust the brightness anymore. i download the hotkey features driver which now allows me to adjust the volume and everything except screen brightness...is there a specific driver i have to download to do this? thanks.
Solved!
Go to Solution.

Never mind i solved this isue. i download Lenovo Hotkey features and ran the file as administrator with Vista Compatibility mode:
http://www-307.ibm.com/pc/support/site.wss/MIGR-68000.html
problem solved. i also updated the bios.

Nokia 6300 can't adjust brightness,it will hurt ou...

expect add the brightness function or buy back the model
Now 6300 hurt our eyes , and then Nokia hurt our hearts.
If you agree with the above, reply this discussions to tell the Nokia ought to solve this problem ASAP.

this option was strangely left out for some reason hopefully nokia are now aware of this and it can get fixed,
If i have helped at all a click on the white star below would be nice thanks.
Now using the Lumia 1520

When I reopen my MBP i can't adjust brightness, volume, etc. and it lags

Whenever I shut my macbook pro, and then later come back and open it up again, there are always problems. I cant adjust the brightness, or the volume, or the keyboard light. That is the sure sign that something is wrong. Then programs will start freezing or lagging horribly with the spinning ball. Its basically unusable until I do a hard reset. If I tell the computer to shut down or restart, it will not. It will start to, but then it never actually shuts down, and i am forced to hold the power button down. The problem used to happen once in a while, but now it happens basically every time I shut the computer.
This is horribly annoying and i need to get it fixed. However my computer is about a year and a half old, so its out of warrenty. (No applecare). I really do not want to have to pay to have this problem fixed or looked at.
Here is what I have tried thus far:
Using Disk Utility, repaired permissions and repaired the HD.
Using Disk Warrior, did the same thing and deleted or repaired corrupted files that it found.
Reinstalled OS X Lion
Any suggestions?

My guess is that something you've installed is playing havoc with your system. When you reinstalled Lion you probably didn't do a clean install, thus the problem continued. Try creating a new user, then work in that acoount for a while. If the problem stops, you know the problem exists in your user account only. If the problem continues, its system wide and will require a clean install and reinstallation of your software.

Cannot adjust brightness after display driver update on Satellite L855-118

Hi.
I just bought an SATELLITE L855-118 , with ATI graphics today, it was between this and another one, but i know you have problems updating graphic drivers on a Sony-notebooks.
I made a restore point.
So i uninstalled the ATI catalyst and then did an driver sweeper, and re-booted and then installed catalyst 12.6 , installed fine, but my screen went to maximum brightness and i cannot adjust it, the brighness osd appears but the screen brightness does not change.
So i used my restore point.
This time i overwrote the stock catalyst 8.9 with 12.6, just the same cannot adjust the brightness.
Does anybody know how to fix this.
My full spec in the link below.
Satellite L855-118 - Product Specifications - Toshiba
Thanks
John.

This is not going to help you, but I have details on the internals of brightness control on this machine.
On other notebooks I've worked with, the hotkeys generated an event that was directly handled by the firmware (ACPI) that changed the brightness; this was done to avoid putting into the AMD video driver any system-dependent code.
On the L855 the ACPI does not really handle the notification, it just generates another event that is supposed to be handled by the video driver. For more technical details see:
[http://thread.gmane.org/gmane.comp.video.dri.devel/71255]
Now this is where it gets ugly: if brightness control is indeed system-dependent (e.g. you have to poke some random GPIO) then the AMD driver will never support it (it would have to know the details of each and every model in circulation).
The good news - at least for Linux users - is that AMD just published the specification of its ACPI interface:
[http://thread.gmane.org/gmane.comp.video.dri.devel/71697]
I've already done some experiments with it, keep an eye on the thread.
This may (or may not...) lead to a usable brightness control *for Linux*, but the same information *may* be used to create a similar driver for Windows.

Please help! How can I adjust brightness and contrast of BufferedImage?

Now I am working on Face Verification by Neural Network.i'm coding with java awt.i use BufferedImage.
So the problem is Face picture of one person but other place or other time is'n same. so i would like adjust picture to standard that i set.How can I do?
picture is 20*24 Pixel 8 bit Grayscale
Thank you so much I will appreciate to your helps

Hello!
Try to go on http://www.dai.ed.ac.uk/HIPR2/index.htm
I hope You'll find Your answer;-)
CU - troya

W10 can't adjust brightness

hi! i since i have windows 8 been having this problem now that i have w10 is the same.. the brightess is at maximun level! and as a programmer student my eyes are buurning! been trying a looot of things! but not working! i can see the level of brightness go up and down! but the screen has the same level! going to thank you from the bottom if you help me with this!

That is the video driver. Go into control panel and see what display adapter is installed. If it is something called Microsoft Basic we need to get you a proper video driver.

Can't adjust brightness

title says it
»HP Pavilion dv6-6b65ed Entertainment Notebook
Serienumber: [edited Serial Number by Moderator]
Productnumber: A1Q51EA
I've reinstalled/updated my BIOS and graphic driver already, still no results

Hi @TheYMan96,
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Thank you
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I work for HP

Can't adjust screen brightness on Acer Aspire One anymore

It used to work before, but now that kernel26-one-dev is really outdated, I've started using the standard Arch kernel26 package. I can't adjust brightness with the fn keys, and GNOME's brightness adjustment applet says it's unable to get laptop brightness read.
I guess it could be acpid related, /sys/class/backlight/ is empty, but I'm currently doing a full system upgrade and will update the thread if that solves it.

Hello myizham,
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 you are having issues adjusting the screen brightness on you HP Envy 23 Beats Edition All in One PC. I would be happy to assist you, but first I would encourage you to post which operating system you are using. And whether your operating system is 32-bit or 64-bit as with this I can provide you with accurate information.
Which Windows operating system am I running?
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T500 can't adjust brightness after standy by or hiber.

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