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18

Flux doesn't really dim the screen, just changes the color temperature (I like it, but you have to be careful with photoediting etc). Dimmer does dim (by the looks of it it's very similar to the above mentioned DimScreen) and it's free. From the site: Overview Dimmer is a very small and free piece of software designed to provide brightness ...


14

You can get more control over the display colors when using the Display color calibration utility : ( from the run box, type: dccw.exe ) the problem is there is no shortcut to toggle between different profiles. I just come up with this little utility dispcalGUI, (with endless options) pretty neat ! it can be the solution.


13

$ sudo apt-get install xbacklight How to set brightness to 50% $ xbacklight -set 50 How to increase brightness 10% $ xbacklight -inc 10 How to decrease brightness 10% $ xbacklight -dec 10 More info here


10

Navigate to Start -> Control Panel -> Hardware and Sound -> Device Manager. In the Device Manager window, look for “Monitors”, then right-click your monitor and select “Uninstall”. Be sure to also check the “Remove driver” option. Once removed, click the “Scan for hardware changes” icon. Doing so should bring the brightness settings back. For both NVIDIA ...


8

The solution is: Start -> Control Panel -> Hardware and Sound -> Device Manager. In the Device Manager window, look for “Monitors”, then right-click your monitor and select “Uninstall”. Be sure to also check the “Remove driver” option. Once removed, click the “Scan for hardware changes” icon. Voila. “Adjust plan brightness” returns, mystery solved. ...


7

The error happens because sudo elevates permissions for the command (sudo echo 5) but not the redirection to write the file (> /sys/class/backlight/acpi_video0/brightness). The actual bash shell needs permission to write, which is why it fails with sudo but works as root. You can work around this by running the tee command as root to write to the file: ...


7

Look under the Vaio Control Center » Display » Automatic Brightness Settings and uncheck the "Adjust brightness automatically" option. If that doesn't work, go to the graphics properties control center: Right click on the Desktop home screen and select "Graphics Properties" > select the "Power" tab > select "On Battery" > and under "Display Power Saving ...


5

I don't believe there is a way to change the brightness and contrast of YouTube videos while they are playing. Flash Player does not control the video brightness or contrast of video settings. This would first be determined when the video is produced, and after that through monitor/screen settings. My only ideas are : Uninstall and reinstall the Adobe ...


5

Grab Shady and rejoice. EDIT: As its documentation outlines, Shady 'fakes' a lower brightness setting by changing colours and overlaying a (software) grey filter on the display. As far as I know, there is no way to turn down the amount of light coming from the screen's LEDs, which I assume is a physical limitation of the hardware.


5

It could be a hardware issue... a failing/bad screen inverter. This is a small, narrow printed circuit board mounted to the bottom of the LCD panel which inverts the DC power provided to the laptop to AC power which the Cold Cathode Fluorescent bulb requires. This of course, would depend on whether or not your laptop had an LED lit or CCFL lit screen. You ...


5

From Samsung R580, Ubuntu 10.04 and Brightness control, not written for Mint but may still work : Edit the /etc/X11/xorg.conf file and add the RegistryDwords line (only that line) to the Device section: Section "Device" Identifier "Default Device" Driver "nvidia" Option "NoLogo" "True" Option "RegistryDwords" "EnableBrightnessControl=1" EndSection ...


4

Short answer: It is a feature. This is the effect of either Intel's "Display Power Saving Technology" or AMD's "Vari-Bright" feature, the intent is to reduce power usage by reducing brightness when you look at dark images (which ostensibly would not need to be back lit so much). This technology detects whether the screen is displaying a mostly dark or ...


4

A somewhat overly technical answer, but you did ask "is it possible..." Open Terminal and go to /sys/class/backlight, then into the backlight control's directory (the name varies, acpi_video0 in my laptop), then read the files max_brightness and actual_brightness. GNOME limits itself to 5 levels between zero and max, but the actual hardware usually has at ...


4

Took me a while but I found this portable app called DimScreen through this site, which does exactly what I need. After launching it, it shows an icon on the System Tray that gives "dimness" levels for me to choose from. The higher the value I pick, the darker my screen gets (beyond the minimum that Fn + Left gives me).


4

From Brightness Controls on Integrated Display Panels: In Windows operating systems, brightness controls are implemented in the operating system-supplied monitor driver, Monitor.sys. The monitor driver implements a Windows Management Instrumentation (WMI) interface to let applications—such as the operating system’s brightness ...


4

Yep. Your LCD brightness should match your environment. Good question! Adjust the display settings on your computer so the brightness of the screen is about the same as your work environment. As a test, try looking at the white background of this web page. If it looks like a light source, it's too bright. If it seems dull and gray, it may be too ...


4

The solution I am using right now I found enable DDC/CI option in my displays' settings. The ScreenBright program was able to modify it, although I think it's GUI is quite terrible and easy to break you custom settings. My screens also flicker a lot when changing brightness. Nevertheless, it has a commandline interface, which is much better. Especially when ...


4

You should check with your graphical card's drivers. You won't find a driver for screen, but you will find in their tools (at least for ATI, NVIDIA, and Intel, probably others too) a way to set the brightness, the color strength, etc. Here is example of what I mean, for NVIDIA cards:


4

Unfortunately, all the power settings in windows may be complete voids due to LENOVO's own power management application, Look for "Lenovo Energy Management" it should have some customisable settings. If there are no such settings then Try disabling "Lenovo Energy Management", from Task Manager If nothing works and if you are so desperate to achieve custom ...


3

On the keyboard, you should see a key by Ctrl and the Windows key labeled "Fn", hold down Fn and look for the brightness display buttons on your keyboard. After looking at a few images through Google, I'm fairly certain that it should be F4 for dimming, F5 for brightening. I haven't had much experience working with that specific model, so I can't recommend ...


3

I have found a solution to allow brightness to be changed using Fn+F5 and Fn+F6! As instructed here, I downloaded from Sony and installed the following, in this order, rebooting after each step: VAIO Event Service Sony Utils DLL Sony Shared Library After this, the Fn key worked fine - I've tested it with F2 (mute), F3 & F4 (volume), F5 & F6 ...


3

If you don't have hardware support for changing the brightness of your monitor you could use the command xrandr together with its option flags --output and --brightness, as can be seen in my answer to a similar question on askubuntu.com


2

Check this before buying somethings, May be it's a solution if there's no such sensors built-in your PC... Webcam as Ambient Light Sensor in Windows 7 Hope this help. Let us know. :)


2

The Fn+Key brightness levels are probably setup as a table in the machine's BIOS, but depending on your exact GUI setup (eg: Gnome, KDE etc..), there may be a plugin or widget that you can add to the desktop or status bar that adds a slider for screen brightness. I can't get in front of a Ubuntu machine with a GUI at the moment but I also believe there may ...


2

Try this, it automatically adjusts the brightness of the computer screen based on the time of day. f.lux...makes the color of your computer's display adapt to the time of day, warm at night and like sunlight during the day. It's even possible that you're staying up too late because of your computer. You could use f.lux because it makes you sleep ...


2

You could give this solution a try: echo -n 100 > /proc/acpi/video/VGA/LCD/brightness Also, in the comments, there are some hints what to do alternatively if it doesn't work (f.e. using GLX0 instead of VGA. EDIT: As this doesn't seem to help, another user in the comments suggests to install xbacklight and calling xbacklight -set 100. EDIT2: And ...


2

I looked quickly and didn't find any info if your monitor is a led based one or not. Some older monitors have fluorescent tube for lights (I think) and those probably have a pretty high lowest brightness setting. So if you have that type of monitor you are probably not going to have any luck making it darker through settings. So you alternative is probably ...


2

I've heard good things about f.lux. It's a piece of software that dims your computer screen according to the time of day, to help simulate natural light. That sounds like it's exactly what you're after, as it'll keep things dim at night, while having considerably less of an effect during the day. Alternatively, use it as my (exceedingly photosensitive) ...


2

Try adding "acpi_backight=vendor" to the end of the GRUB_CMDLINE_LINUX argument. The Linux kernel tries to control the backlight, but does a very poor job with some laptops. That kernel argument hands control of the backlight back to the vendor hardware. The problem I have on my dv5 is that the backlight doesn't turn on at all without that argument. Not ...



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