Questions related to screen brightness.

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0
votes
1answer
311 views

Can't find Sony Viao VGN-C25G brightness after Win7 (32bit) upgrade

I have a Sony VAIO VGN-C25G which I upgraded to Windows 7. After a while, the OS crashed. I reinstalled Windows 7 32bit again. Now the brightness setting does not appear in the power options ...
5
votes
2answers
1k 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 ...
2
votes
3answers
2k views

Lenovo G560 screen brightness control doesn't work

I recently installed Windows 8 Enterprise EVAL on my Lenovo G560 and the screen brightness control stopped working. I tried installing both the video driver from Lenovo's website and the one from ...
2
votes
1answer
489 views

Can't control brightness on Sony Vaio laptop with Windows Vista

I just did a fresh Windows Vista install on my Sony Vaio VGN-AR71J and all the drivers are there, but the control for the brightness adjustment is gone. When I tried to run the Vaio Power Management ...
8
votes
2answers
4k views

Can't write to file /sys/class/backlight/acpi_video0/brightness (ubuntu)

I am trying to change the brightness by overwriting the value on this file: sudo echo 5 > /sys/class/backlight/acpi_video0/brightness -bash: /sys/class/backlight/acpi_video0/brightness: Permission ...
0
votes
1answer
1k views

Can I change the display brightness via software on a Windows x64 desktop?

Now that monitors are all fancy and digital, display manufacturers lost sight of the utility of the brightness knob. Of course I can go fiddle with the now-cumbersome digital brightness settings ...
7
votes
6answers
16k views

How to prevent laptop screen brightness from changing when un/plugging battery power

When I am using my laptop, I continually adjust the screen's brightness based on the lighting conditions in the room (e.g. how much light is coming in from windows, etc.). But if I unplug the laptop ...
0
votes
3answers
2k 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 ...
2
votes
2answers
567 views

Screen brightness setting for reading on Ubuntu 12.04

I read a lot on my computer especially at night. Can I somehow set the screen brightness level on my laptop even lower than the Brightness menu does?
0
votes
1answer
500 views

Change screen brightness via software end or without drivers?

Is there a software-end hack to let me adjust the brightness of Windows 7 even if the screen driver is malfunctioning? My brightness is all the way up and because I have some critical work files ...
1
vote
0answers
255 views

Lower backlight brightness further on Lenovo Y570 running Windows 7

Is there any way to lower the brightness further than the minimum brightness setting? I would like to not have my retinas burned at night. If there is no solution to lowering the backlight, then is ...
1
vote
5answers
9k views

Set screen brightness of Acer All in One PC

I have an Acer All in One PC (it is an Acer Aspire Z3771), which I currently use as an ordinary monitor. It does not have any external buttons to change its screen settings, and if I start it as a PC ...
5
votes
1answer
376 views

Is there a way to adjust colors of a specific window?

Is there a (Windows) program or something that will allow the user to adjust the brightness/contrast/gamma of a specific window rather than the whole screen? As a use-case scenario, imagine having a ...
1
vote
2answers
2k views

Can't change screen brightness inside Linux on Acer

Acer TravelMate 4740 series laptop. Brightness control keys (Fn+Right/Left) work on Windows 7, but not on Linux(tried both Ubuntu and Kubuntu). Linux shows the brightness bar(bulb) when the keys are ...
1
vote
1answer
211 views

Brightness doesn't change. But, sleeping the computer and coming back, works

I can't change my brightness on my laptop and I would like a help to solve this problem. Using kcmshell4 kgamma I can change the constrast. But using xbacklight nothing happens. If I put ...
1
vote
1answer
282 views

Alternative to intel control panel with greater brightness range?

My Intel control panel allows the brightness to be set to a minimum of only 40. Is there a way to allow a broader setting range? I am using Windows 7 and a Sony Vaio 64-bit box. Lowering the ...
7
votes
6answers
13k views

How to disable auto brightening LCD

I am not talking about adjusting screen brightness through power management (this is a laptop), I'm not talking about how the screen brightness setting may be different between 'plugged in' and ...
4
votes
2answers
2k views

How to set the laptop screen brightness programatically?

I'm currently migrating to openbox without gnome session. In unity i can use the vendor keys to set the screen brightness, but in openbox I'm on my own. /sys/class/backlight/acpi_video0/brightness ...
1
vote
4answers
14k 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 ...
10
votes
1answer
31k views

Brightness settings gone, how do I bring it back?

I have a VAIO CW laptop with Windows 7 x64, and after installing new NVIDIA drivers, my screen brightness controls are no longer available. (Not in the control center, not in the power options, ...
3
votes
1answer
884 views

How can I find a light sensor to adapt my monitor's brightness to the room?

Where can I find a standalone light sensor that updates the brightness of my screen to match the ambient light level in realtime for Windows 7? My monitor does not have a sensor. I had the idea ...
0
votes
1answer
487 views

Dell Inspiron 1545 laptop - screen doesn't work: no power, brightness is 0%

There is a laptop - Dell Inspiron 1545. A problem is a brightness of a screen is 0% (when BIOS starts, Windows works - all time). I can barely see a picture on a screen at a big angle (it seems like ...
0
votes
0answers
645 views

Laptop screen brightness doesn't change when i change it using windows power options

I have a Hasee FU505 laptop it came with a Linux Red flag OS, i removed the Linux and installed a Windows seven instead, the Hasee website provide drivers only for windows vista, i downloaded these ...
2
votes
2answers
705 views

Brightness Indicator

What software can I use for Windows 7 to show an on-screen progress-bar notification of the brightness when I change the brightness of my screen?
0
votes
2answers
270 views

Display brightness

When the power cord is removed from a laptop, the display brightness goes down slightly (very slightly, not a complete "notch"). The interesting thing is, I don't remember XP doing this, it seems to ...
0
votes
1answer
709 views

LCD BENQ monitor brightness

I have BENQ 15 inch LCD monitor. When I turn on monitor, contrast or brightness dialog is automatically displayed on screen and I cannot remove this dialog. If I increase brightness, automatically ...
1
vote
1answer
161 views

Screen Brightness not permanent

I own a Lenovo Thinkpad SL400 and I dual boot Fedora 15 AND Windows 7 on my laptop. I am facing a problem with my fedora installation: Whenever I reboot the computer, my screen brightness goes back ...
2
votes
1answer
1k views

Ideal brightness and contrast value in LCD monitor?

I'm using 19 inch LCD monitor. The distance between me and monitor is around 80 cm. For this distance, what is the value of brightness and contrast for normal eye sight?
5
votes
4answers
5k 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
520 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 ...
9
votes
1answer
9k views

Windows 7 brightness slider suddenly gone

Brightness slider in power plan settings recently disappeared. How to fix it?
41
votes
15answers
117k views

How can I dim my computer screen beyond the minimum?

I usually just use Fn + Left or Fn + Right to adjust my screen's brightness but the minimum settings are still too bright for me (especially when I'm working at night). I tried going through the Power ...
0
votes
1answer
2k views

My Philips Meridian 191EL2 LED monitor's brightness resets to 90 on power up

It is the inbuilt monitor menu. It just doesn't save what I set. How can I control the brightness from OS. I am on windows 7. nvidia xfx 9500gt graphics card installed. Thanks for help.
1
vote
0answers
469 views

Gamma won't restore to original settings after exiting 3d application

I have adjusted my gamma, brightness and contrast using the calibration tool provided by Windows 7. Games typically require slightly different settings in my experience, and so I tend to adjust the ...
1
vote
0answers
674 views

set brightness and other attributes for laptop using ati radeon driver from ubuntu 11.04 repository

I am using ubuntu 11.04 on dell studio laptop with ati 5470 card. I have set the brightness to a level say 47%. But Each time I login brightness has already become maximum and I have to adjust using ...
1
vote
0answers
300 views

Do anti-glare filters exist for a 24 inch LCD monitor? [duplicate]

Possible Duplicate: Are there effective Anti-glare screens? A family member finds a new 24" LCD monitor too bright (painful) to look at even on the lowest brightness/contrast settings. She ...
1
vote
3answers
2k views

How do I get better control over screen brightness

I bought a Dell Inspiron (which runs Windows 7) and they seem to have done something to the brightness controls because it seems to be more coarse than I remember from my previous HP Pavilion (EDIT: ...
3
votes
2answers
862 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 ...
9
votes
2answers
419 views

Is there a way to display a real-time image histogram of all or part of what my monitor is displaying?

I am trying to adjust brightness/contrast in photo/video editing software that does not provide image histograms. What I would like is a piece of windows software that displays a real-time histogram ...
1
vote
1answer
878 views

MacBook Air screen is too bright even on the lowest setting

Is there a tweak, hack, or piece of software that can adjust the brightness of the MacBook Air's screen below the settings that MacOS X allows by default? In low light the lowest brightness setting ...
0
votes
1answer
2k views

Is there a way to increase the screen brightness of a macbook running snow leopard beyond what apple lets you?

Any way to tweak it? I'm guessing no, but I wouldn't have ever thought of overclocking a cpu would work either...
1
vote
0answers
404 views

Some of Windows 7 brightness sliders dissapeared

The sliders from Mobility Center and below the power plans list disappeared after some certain time/event, but Windows still can control the brightness of my laptop (VAIO VPCEB1J8E) through either by ...
0
votes
0answers
152 views

screen brightness dimmer [duplicate]

Possible Duplicate: Adjust screen brightness automaticly at night. Can you recommend a software to dim laptop screen brightness-contrast easily an/or predefined values? Thank you
6
votes
2answers
2k views

Is there a work around to configure brightness or color on a DisplayLink monitor?

I run 3 monitors in addition to my laptop display at work - two of the monitors are using DisplayLink adapters. I've always thought that all my displays were too bright (and possibly give me ...
15
votes
9answers
31k views

How to change brightness on CRT display through the Linux command line?

I have a Debian Linux desktop and a CRT display. I want to change the screen's brightness without using the monitor's brightness controls. How can I do this? Is this possible in the command line or is ...
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 ...
5
votes
2answers
890 views

Backlight control in Eee PC 1015PEM

When I boot my Linux with acpi_osi=Linux, I can control backlight brightness from almost_zero to moderately_bright. (Actually, the maximum revolves around the brightness level that is set before Linux ...
7
votes
6answers
21k views

How do I change the brightness and contrast of YouTube videos on-the-fly?

I'm tired of different video black levels which take down the quality of the video. Some examples, depending on your brightness level you might or might not see the difference: If you can't see ...
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
1k 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 ...