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23

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 ...


16

Look under /sys/class/backlight for the appropriate files to frob. echo -n 6 > /sys/class/backlight/acpi_video0/brightness


15

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.


14

$ 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


12

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 ...


9

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. ...


9

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: ...


9

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).


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 ...


7

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 ...


6

Are these things supposed to run in bright environments only are are my eyes just sensitive? Nah. You just have sensitive eyes or the factory default settings were too bright. You did well, and as expected, by changing the settings to something more to your liking. Incidentally, you may also have got an equipment that had been previously on ...


6

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 ...


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

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

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 ...


5

I'm not seeing this effect myself (white/black Paint windows), and you've probably tried this already, but how about the Automatic Display Brightness setting in the Intel HD Graphics Properties (Advanced mode)? Click for full size Especially if it's in a dark room, it sounds like what a smartphone's 'light sensor' would do: when it's darker, turn down the ...


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 ...


4

Have you tried Dimscreen from the donation coder? http://www.donationcoder.com/Software/Skrommel/index.html#DimScreen


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

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 ...


4

Sounds like you are looking for something like f.lux. This handle little program adjusts your screens color ratio to something easier on the eyes based on the time of day.


4

Might also be worth checking the refresh rate as well. The optimum for many TFTs appears to be 60Hz, although that is something which would have driven most people batty on a CRT. If you've habitually upped it to 75hz, maybe try back on the lower settings, as counter-intuitive as that may be. Also, some bias lighting should help reduce eye-strain, if it's ...


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

I don't know if this is what you are looking for but Powerstrip maps hotkeys to change brightness. It's not free though.


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

author of f.lux here. DisplayLink does pass through DDC/CI commands to displays. We've had an implementation to do this for a few years, but we've been cautious to support this for a few reasons: Most displays store color settings using an EEPROM, and these typically have a finite number of write cycles. We could get away with changing things a couple ...


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


3

You need to control the monitor over DDC. See http://ddccontrol.sourceforge.net/ for one program that lets you do this.



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