HP Probook 450 G1 :: Unable To Increase And Decrease Brightness
Sep 26, 2014
my hp proobook 450 G1 Brightness increase by (fn+f10) & decrease by (fn+f9) suddenly stopped working from yesterday.But i can change sound to use thekey [fn+f6] and [fn+f7]also i have a problem on my left button(controler left button) . My up,down,right button is working properly but left button is working as backspace Now what can i do?
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Apr 24, 2013
I have a Dell 17R 5721 Windows 8. I updated the Dell Quickset app, Digital Delivery app and the Realtek Audio Hi Def driver. Now I see that my Waves Maxx Audio 4 function is missing and F11 and F12 aren't working to increase/decrease volume. I've found several related posts, but for different computers, so they don't work for me. how to restore things back to the original factory condition?
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Jan 20, 2009
Everything had been fine until I did some updates, can't remember if this occurred after a video driver update or a BIOS update.
But now the display brightness maxes out at about half. When I hit Fn + up arrow, it starts off at about half and the little meter does go up (the sunshine puts on his shades), but the display brightness doesn't change at all.
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Nov 24, 2012
I have a new z500 that I've downgraded to Windows 7 64bit. For the most part I have everything working. I accidentally hit the brightness + (yes, +) and it instantly dimmed the screen to where it is barely viewable. It seems that hitting that one key decreased the brightness to the minimum amount. I've rebooted, looked for a setting in the BIOS, hit the Brightness +/- and can't increase the brightness. It is interesting because the other hot keys work correctly. I've even upped the brightness in the Control Panel, but nothing seems to work. The screen is extremely dim whenever the machine is powered on (including the BIOS), not just in Windows. I tried a lot of intel chipset drivers, the available Intel HD 4000 drivers in Win8 and win7 too, but nothing working. How to up the brightness?
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Sep 18, 2014
My HP Probook 450 is with Windows 7 and the combination FN + F9/F10 is not working. The other FN keys seem to be in order, but I can't change the brightness of the desktop directly with the FN keys.
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Apr 3, 2014
I've started using HP ProBook 4530s with Intel Graphics on it. Then, I installed Win 7 Ultimate x64 on it and figured out, that brightness buttons don't work. (sound/music controls/sleep buttons works fine) Automatic
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Sep 25, 2014
Model: HP Probook 4530s
OS: Windows 7
I have both Intel and ATI switchable graphics in my laptop. I recently reinstalled Windows & If I try to install the ATI drivers from the drivers CD or from the HP website, the laptop hangs on the Windows logo after a restart and I have to do a system restore to fix it. If I try to install just the Intel driver it just gives me an error that says "This computer does not meet the minimum requirement to install the software". I am unable to change the brightness and the resolution is bad. In Device manager both the options under display adapter say "Standard VGA Graphics Adapter", with a yellow error sign over one of them. I am worried if the graphics card is damaged from over heating. Is it possible to disable one of the cards to check functionality of the other?
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Jul 11, 2014
Was this ever resolved? I am having the same issue on the same computer that I cannot manually adjust the screen brightness using the function + F2 or function + F3 screen brightness keys.
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Jan 22, 2015
I am unable to disable the adaptive brightness on the i5 HD 5500 1080p version of the new XPS 13.
When I view a dark page, the screen will dim, and when I view a bright page, the screen will get brighter. This is extremely annoying and all the options I've tried have not fixed this issue at all.
Turning off the enable adaptive brightness option in the advanced power settings does nothing. I have this done on all power plans.
The option for disabling it that should be in the Intel Graphics Driver does not exist.
Disabling the Sensor Monitoring Service doesn't fix it either.
I have the latest version of the Intel Graphics drivers. Uninstalling it doesn't fix it either.
Installing another operating system doesn't fix it either, so I'm assuming this is some sort of hardware problem.
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Sep 28, 2014
The brightness on my HP 15-r018dx Notebook PC won't change, not using the function keys or the slider in "Power Options". This started happening two days ago; before then I had no issues. I am not sure what changed between then and now.
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Mar 3, 2014
I installed windows 8.1 into my Probook 450 G1 and I could not find any ATI Radeon 8750M drivers to it. The windows 8 drivers are not working properly in windows 8.1 .
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Jul 24, 2014
Brightness is stable and the keys of btightness up and down are not working or can say that not changes the screen brightness. since so long and due to this the battrey backup is affacted..Having windows 7 ultimate 32 bit..
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Dec 31, 2011
I have a Pavilion dv6-6173cl laptop. It's been working fine until recently, when I left it on overnight to finish downloading a huge file. When I tried to adjust the brightness the next morning, I couldn't (though it was still at full brightness like I always keep it). So I thought, "why not reboot it?" I rebooted and now the display is the dimmest it can get with no way of adjusting the brightness using the brightness keys, control panel, or otherwise.
This has happened before. When it did, I did a factory reset on it and it fixed the problem. However, although there is no absolutely critical data on there and I can always make a backup, I prefer to not have to go through all that if it's avoidable. I have an external display that HP asked me to connect it to to see if it was a hardware or software issue. The external display was at full brightness, so when they asked me to ship it in I did a factory reset and that solved the problem. And now it's back.
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Aug 7, 2014
I have installed Windows 8.1 and install most of the drivers fro HP reccomended link. Even after that I am not able to adjust my brightness and WIFI .
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Oct 9, 2014
I own a 3.5 years old Acer Aspire 5742G (Core i3 M380; NVIDIA540M). the heat sink or the collinig fan might have some issue as it usually gets overheated when playing games (even CS condition zero/1.6). I don't play games anymore, so its not a problem.
The problem is that I am unable to adjust the screen brightness from the keyboars shortcut (Fn+ Left/Right arrow key), neither from the control panel (Power Settings).
Although I do noticed something that, if I change my brightness settings (nothing happens) and I close the laptop lid (display screen) by folding it down and openeing it back after 3-4 seconds, the brightness is now changed.
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Dec 1, 2014
Screen automatically dims as I go in little dark areas and gets too bright when it has so much light around it. I am trying Fn+ arrow keys but they make very less difference. Is there any way to control this?
I am using Windows 8.1 and display drivers are Intel HD Graphics Family version 10.18.10.3316.
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Sep 25, 2014
I m using HP Pavillion N208TX with windows 8.1 64 bit version. i m not able to adjust screen brightness from f2 and f3 button and from the power setting also. when i press these buttons it shows the slider to adjust the brightness on top left corner of the screen but its does not adjust the brightness from low to high. i have already updated the Intel HD Graphic driver...
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Feb 25, 2015
My Aspire E15's brightness is locked at maximum capacity. I can't change it in power options or with the Fn key. It is the same whether connected to the AC adapter or not. While using the Fn key and pressing Fn+Left Key or Fn+Right Key, the on-screen brightness indicator alternates between two levels but the brightness of the screen doesn't change.
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May 31, 2013
Suddenly I am unable to create wifi hotspot by command prompt in windows 8.1. because every time I am facing
"the wireless local area network interface is power down and doesn't support the requested operation"
I am using HP probook 4440s.
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Oct 26, 2014
I can't adjust my screen brightness using the Power Manager. Updating to the latest release of the ThinkVantage Communications Utility did not solve the issue. I can't make the screen either brighter or dimmer.
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Jul 7, 2014
I've recently bought an HP Probook430 and installed Windows 7 Ultimate 32bit and I don't seem to be able to change the display brightness, using the fn button+f9/f10 (although volume settings are changed in the same method smoothly).
Although the brightness settings don't seem to change, this bar does appear when pressing fn+f9/f10. What should I do in order to make the display brightness settings changable?
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Sep 17, 2009
I bought my 1640 refurbished and it had eveything I wanted except for Blue Ray. So to rectify this I went on a search for a Blue Ray that would fit - Dell wanted $389 for a refurb-
I found a a tear down picture and zoomed in to get the part number BC-5600S. I confirmed this with the service manual.
I found one on Ebay for $130 so I ordered it. Some of the other players out there have an eject button - the BC-5600S does not have a eject button.
Has any one done this upgrade and could offer some tips or advise?
Or am I going to be the guy that needs to do that for you?
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Feb 2, 2009
I'm considering getting an HP HDX16t.
Not sure whether the highest resolution will be too small for my liking -- if I get the 1920x1080 screen can I decrease the resolution without any problems if it turns out I don't like the highest resolution?
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May 16, 2009
my UMBP got way too damn hot. and was getting tired of the heat. So I started out just taking the bottom of the notebook case off and blowing it out. Then I started looking at it more closely, the fans have no direct access to fresh air intake. Yes I know the speakers/keyboard are meant for that. But the tinkerer in me fired up the drill press and with a 11/32 bit started making some small holes areound the fan intake and ram. Well my MBP now runs so much cooler before I was running 44-55C on mbp just idling and light web browsing. No I am so so happy to say my MBP is running at 35-40C. That is significant decrease in temps.
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Feb 13, 2010
I have been playing with nvidia powermizer but as soon as i started scrolling down webpages, the gpu temp would increase. So i requested help and was referred to this thread: [How To] Use Rivatuner as a better "Powermizer" alternative
I followed the instructions but i was still getting mid 60's degress celcius on my gpu(i set it on low power 2d). I wasn't quite satisfied. After considerable research i found out a program called lubbo's fan control. There was a previous version released which was a fiasco. However, i noticed something. That one had a releae date of 20-jan-2010. I decided to try it and wow!! That is a keeper!!! I can select the maximum rpm of my fans, the minimum rpm. I can even go below 2000rpm (But i didnt risk it). The most interesting feature is that i can select what us the maximum temperature i want my system to be. I chose 60c and now, while i'm typing this, my gpu is reading 56c. That's the first time i'm getting a steady sub 60 temp. It isnt going less and it isnt going more than 56c. My fans rpm are at 5000 but while listening to a music or even using it without music, it isnt that disturbing. Also, it will kill your keyboard manager. Who cares and who needs it. We can control the keyboard from the bootcamp manager.
One last thing that i will add is that this software detects both gpu's (9400m + 9600m), a proof that the apple guys are being lazy to provide the gpu switching software. Tested working in w7. To make it start everytime you log on, just create a task and schedule it to run when you have logged on.
Here's the link: [url]
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Mar 15, 2009
I've noticed a considerable decrease in battery life of my 2008 Macbook white after the 2009.001 security update. Earlier I used to get around 4 - 4.5 hours on normal usage, but its down by about an hour now. Its only around 9 months old, and the battery cycles is just 20.
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Dec 21, 2009
I bought my Acer 8530G Notebook a few months ago for the start of university. I picked it so that it could function as a desktop, whilst being able to tackle new games reasonably well. At first, it was fantastic, running games on high quality with lag only rarely. But then it began to lag immensely after about one month of me owning it. Not just in the games, but on the desktop aswell and when surfing the net. Also, sound began to crackle when I played music. It only cracked a little when using the built in speakers, however when I used earphones, the crackling rendered music unlistenable.
I began to think about what may have caused the problem. I uninstalled some of the larger programs on my computer to free up hard drive space, then got rid of additional applications that ran in the background (None that came pre-installed, mind, although they were few), then did full virus scans to check for anything malignant. The scans came up clean. all clear.
Even after all this, the performance is still -poor.
So I was wondering if any of you people have suggestions on what may have happened, or if the Acer 8530G has underlying problems?
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Sep 6, 2009
Recently my brand new studio 17 updated, about a week later I noticed that 50GB had gone missing! I of course called tech support to see if they could help (good luck) after spending hours on the phone they could not really solve the issue, asides from doing a factory reset.
Now again I am having this issue again, once Vista updated it is slowly eating away hard drive space. There is currently 31.4GB being used (yes, this includes all hidden files) on a 450GB hard drive, yet the system reports only 402 GB free space. Each day it decreases about 2-4 GBs ......
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Feb 20, 2009
I play a video game, and my fps will go from 70-80fps, then just SPIKE to like 2fps and I will get artifacts.. I figured it was a display driver, I've tried probably 20-30 of them now (just random vista 32 bit drivers), all with the same results. When I monitor my task manager I'm using 100% of my CPU Usage, and around 1gig of ram while a game is running. I am trying to figure out 1) what the deal is and 2) how to resolve it...
Here are my specs:
Dell
Inspirion 9400
Intel(R) Core(TM)2 CPU T7200 @ 2.00GHz 2.00GHz
2046MB RAM
Vista 32-bit Operating System
NVIDIA Geforce Go 7900 GS
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Nov 27, 2009
I just ordered my MBP 13" (2.26 ghz) from Amazon for 1049. I should get it on satureday along with with 4gb ram kit (crucial) and a 500gb Seagate Momentus 7200.4 drive. I am very excited
I have a couple of questions :
1. When I replace the drive, Can I just pop in the OSX install CD and install the OS on the new drive ?
2. would the new drive significantly decrease my battery life ? what should I expect ?
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