0
votes
2answers
92 views

Normal windows mode without any brightness - How to get it back?

My Fn key doesn't seem to work/help me to adjust brightness. So I tried to minimize the brightness (inside the Control Panel). To my surprise, the screen went entirely black and I couln't see a way to ...
0
votes
3answers
1k views

Cannot change brightness on Sony VAIO Fit 15

I've begun to notice that periodically on my Sony VAIO Fit 15 (model number SVF15A1C5E) I can no longer change the screen brightness. Using the Fn+F5 and Fn+F6 shows Windows 8 the brightness overlay, ...
0
votes
1answer
156 views

Backlight brightness on Mint 16 (GeForce 330M)

I have Dell Vostro 3700 with GeForce 330M and use the nouveau driver. I have Mint 16 with Cinamon. I want to be able to change backlight with keyboard shortcuts. I did some changes to kernel ...
0
votes
1answer
299 views

Screen brightness slider disappeared on Windows 7. How do I bring it back?

So I can't find the screen brightness slider or any brightness adjustment option in my power plan options. All I can do is determine when to put the laptop to sleep and when to turn off the display. ...
0
votes
1answer
958 views

Windows 8 Asus laptop: Screen Brightness is auto-adjusting despite being disabled

I'm not sure if this is a problem being caused by Windows 8, the asus power-management programs, or what. Whenever my screen is displaying something darker, specifically the Steam client or in ...
0
votes
0answers
151 views

Brightness too dark or too bright

Basically, below a seemingly-arbitrary threshold (seems to be around 60%) my laptop screen is too dark to really make out much, and above that threshold it takes its maximum brightness (which is waay ...
0
votes
0answers
59 views

How to save brightness after adjusting?

I am using lenove e430c 33651m9 with Fedora 19, very time I reboot my laptop the brightness of the lcd will restore to max value. So is there a way to save the brightness (permanently modification)?
2
votes
1answer
169 views

Customize adaptative brightness in Windows 8

I'd like to customize the adaptative brightness function (max luminosity = fn(sensor-light)) on my laptop. In a very dark environment, my maximum screen brightness is too low, I have to disable auto ...
0
votes
0answers
538 views

Are there any other ways to adjust screen brightness other than the control panel or keyboard shortcut?

On my Lenovo y500, I'm unable to adjust the brightness using the control panel. Even when I try the keyboard shortcut to adjust brightness, I see the meter change, but the brightness remains the same: ...
0
votes
2answers
977 views

Laptop's screen brightness momentary random changes while on battery mode

My laptop's screen brightness momentary adjusts when doings several things, like when loading a web page, when scrolling up/down, when maximizing or minimazing a window. These changes in brightness ...
0
votes
0answers
190 views

Is there any way to adjust the backlight?

I bought an ASUS laptop, it does not have a DDC/CI screen. I found that while using it in reasonably bright light, say a cloudy day, I had difficulty seeing the screen. Is there a way to change the ...
0
votes
1answer
1k views

How to change screen brightness on Toshiba Satellite L850-DJS in Linux

I bought a laptop Toshiba Satellite L850-DJS. There was Windows 8 installed at. I installed Kubuntu 12.10. All works perfectly, but i can't change screen brightness. Maybe someone had this problem and ...
4
votes
2answers
675 views

Can I fine-tune my screen brightness keys? (Ubuntu Studio, Thinkpad T420s)

I am in a similar situation as question Can I fine-tune my screen brightness? . For me, Thinkpad T420s and Ubuntu Studio 11.10. The brightness keys work fine but the increments are too large. I have ...
0
votes
3answers
1k views

Laptop display dims when running on battery power

I recently bought a Lenovo IdeaPad Y580 and it has one minor annoyance: It continues to dim the screen when I unplug it from the power cord. I have tried setting the screen brightness in the advanced ...
1
vote
4answers
9k views

My laptop screen keeps dimming

I have a Cryo laptop with Windows 7 installed, bought in December 2011. Sometimes the screen seems to persistently dim and/or brighten up, even as I am doing things. In fact the brightness is varying ...
5
votes
4answers
4k views

Can I fine-tune my screen brightness?

My laptop is Lenovo T400, and my OS is Ubuntu 10.10. I change the brightness of my screen by pressing the FN key and one of the two keys for increasing/decreasing brightness. The brightness I feel ...
1
vote
0answers
458 views

Very dark webcam on new HP DV7

I just got my new HP DV7 6135dx about a week after it came out and when I was playing around with the webcam a few days after, it worked great. But then all of a sudden it went dark. Not black, but ...
3
votes
2answers
725 views

Should LCD Brightness Match Environmental Lighting?

I have a new T410 laptop and ever since I've been using it, I've discovered that my eyes don't stress as much when I adjust the brightness to my environmental lighting. For example, during the day, I ...
2
votes
2answers
2k views

Brightness adjustment not shown in Windows Mobility Center on HP Pavillion laptop

The Windows Mobility Center (displayed when you press +X) normally shows a slider control for adjusting the brightness of the display on laptops. On my older Dell laptop this worked fine, but on my ...
0
votes
1answer
3k views

Brightness controls not adjusting the brightness in ubuntu 10.10 64 bit on hp dm3t notebook

I picked up an hp dm3t laptop with intel HD graphics and installed ubuntu 10.10 64 bit on it. It works great -- the only problem is that the brightness controls on the keyboard don't work. The ...
1
vote
2answers
949 views

The brightness keeps on increasing and decreasing - is there something wrong with my laptop screen?

My laptop screen brightness just keeps on increasing and decreasing in a loop. Is there some setting that I have messed up? I am sure the machine should be okay, because it is pretty new still. I am ...
4
votes
2answers
1k views

Laptop Screen Brightness

What controls the brightness levels in a laptop? Is it the BIOS? Is it possible to modify the brightness levels to have a custom brightness at each level?
2
votes
1answer
1k views

How to get backlight on my Acer Extansa 5220 laptop to lower than minimum brightness level?

Minimum backlight level is not as dim as I want. I want to be able to tune it to arbitrarily low level, for example to be hardly visible in a dark room (but still visible). In my digital camera I've ...
3
votes
2answers
2k views

HP Envy screen brightness .. stuck

once in a while, the screen brightness stops responding to any reason, and stays on full brightness.. for those of you that have HP Envy, you know what this means... battery suicide. the FN+* ...
2
votes
2answers
2k views

Screen gets stuck in a dim setting after waking up

I've got a laptop that I recently upgraded from Vista to Windows 7. It works a lot better now for a lot of things, but there's one problem I've had happen a few times that never happened under Vista. ...
0
votes
2answers
946 views

Optimal brightness for laptop screen while on AC power

Does using the laptop screen at the maximum brightness level while on AC power have any disadvantages? May it decrease the lifespan of LCD screen, or convey more heat and cause more heating of laptop ...
1
vote
3answers
111 views

Power scheme faulty

I use a laptop. When I take the power cable out to run on batteries, the screen darkens, as it is no longer so bright, to save on battery power. When I put the power cable back in, the screen ...
6
votes
2answers
25k views

How to disable the light sensor on a Vaio laptop

I just got a new Vaio laptop. It is great. However, the ambient light sensor dims the screen brightness and prevents me from changing it. Is there a way to disable the ambient light sensor and go ...
2
votes
2answers
872 views

Brightness controls not working on HP dm3t

I have an HP dm3t notebook which normally comes with Windows 7. I figured out how to install Windows XP on it, but now I'm facing a problem that the brightess controls don't work so am unable to ...
3
votes
3answers
8k views

How do I get my laptop's screen brightness settings back?

From when I bought it up until yesterday, my laptop would dim the screen automatically if you let it sit for long enough, and then if you hit a key or moved the mouse, the brightness would jump back ...
0
votes
2answers
775 views

Laptop screen not dimming anymore

I have a Gateway laptop that originally came with Vista, and I upgraded to Vista Ultimate. I have always been able to change the brightness settings by using Func+Up or Func+Down but a few days ago it ...
1
vote
5answers
36k views

How to control brightness on Sony VGN SZ-series laptop after Windows 7 upgrade?

I liked Windows 7 so much on my desktop machine that I took a chance and upgraded my Sony VGN-SZ2XP laptop as well - to Windows 7 Home Premium - knowing that Sony were not making Windows 7 drivers ...
0
votes
1answer
5k views

HP Ambient Light Sensor Adjustment

I have an HP nc4400 running Windows 7 64 bit. If I have the ambient light sensor enabled, it works well, but, its slightly too dim. I can turn off the light sensor and turn up the brightness ...