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34

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 ...


19

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 ...


19

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 ...


18

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


15

$ 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


15

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. ...


12

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).


11

Update - 2015-10-30 ScreenBright seems discontinued, but as @wrongusername suggested, pangobright might be an alternative. 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 ...


11

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 ...


11

The option is not in the main menu, but has a dedicated button here: Click the button enough times to select OFF.


10

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 ...


10

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

Intel’s “power-saving feature” is indeed extremely aggravating. It is supposed to reduce power consumption, but all it does is to fade the screen in both brightness, and more importantly, contrast, but only when the display is primarily dark. The problem with disabling the function in the Intel Media Control Panel as Bob has shown is that it just doesn’t ...


8

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

Here is a link specifically addressing setting screen brightness below the minimum: Decrease Backlight Below Minimum – Ask Ubuntu Open Terminal Enter the following command: cat /sys/class/backlight/intel_backlight/brightness Write down the resulting value (12421 in my case) Divide value by 6 and write it down (2070 in my case) Enter the ...


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 display. ...


6

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 ...


6

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


6

I have the LG 24m45 and I was having the same issue. I looked all over for the menu to change it, however it is actually in a special menu-which is an awful idea. I found the separate menu by pressing down the function(FUNC./) key twice and the menu popped up. Hop this fixes your problem!


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

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


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

I did all this, this never worked. This is all that works: Press "Windows Key + R" to open the command menu. Type "services.msc" and press enter Scroll through the list of services and look for "sensor monitoring service" Permanently "Disable" the service in properties. Voila.


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

Edit this line in /etc/default/grub: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=" Then: update-grub reboot


5

iBrightness might be what you're looking for: Of course there are various other apps (although perhaps not providing direct access via a popup) that are progressively ugly in terms of UI, such as Display Tuner, ScreenBright, Desktop Lighter... You can also create shortcuts with keyboard shortcuts to NirCmd, and in the Target field specify parameters ...


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

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 ...



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