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Questions tagged [brightness]

Questions related to screen brightness.

339 questions
93
votes
20 answers

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 Options in the Control Panel (plan brightness…
Ellesa
  • 11,185
63
votes
9 answers

Brightness changes while "Adaptive Brightness" is disabled in Windows 8.1/10 with Intel HD Graphics

The brightness changes with the colors displayed on the screen on my Lenovo Thinkpads with Intel HD Graphics. Light colors make the screen brighter, dark make it darker. Same behavior in Windows 8.1 and 10. The "adaptive brightness" feature in…
psv
  • 1,373
61
votes
11 answers

Laptop monitor brightness changes depending on image displayed

I have a windows 8 laptop. My desktop background is very dark (almost black) and when i have no windows open, my brightness dims. When i open an application that is primarily white (google chrome's start page) or just a white image, the screen…
agz
  • 8,438
49
votes
7 answers

How to adjust monitor's backlight brightness in Windows

My monitor is more than an arm's length away from me, so adjusting its backlight brightness is quite inconvenient. Is there a way in Windows to adjust the backlight using the keyboard and/or mouse only. If so, how?
GetFree
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34
votes
3 answers

How to disable automatic brightness setting on LG monitors?

I have two LG monitors (both 23MB35PM) which have an annoying and distracting feature of automatically changing their brightness at random times, probably due to some power saving mechanism. How can I switch it off?
jcora
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33
votes
1 answer

Dell XPS 13 9370: screen brightness changes based on window contents

On my new Dell XPS 13 9370, it seems that the display backlight brightness is adjusted based on the brightness of whatever's on the screen. For example, say I have Sublime Text open with a dark theme, and I click on the file menu. The menu dropdown…
Mala
  • 7,466
24
votes
6 answers

How to properly adjust monitor brightness and contrast?

This days, it seems that I either go worse with my eyes or some settings with contrast and brightness have been changed. However, I have been searching now for some tutorial on how to adjust contrast and brightness, and I have found already some, on…
Johannes
  • 341
24
votes
6 answers

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 denied It doesn't work even when using sudo.…
Kei Nivky
23
votes
7 answers

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 or plug it back in, Windows looks at the default…
Nomad
  • 331
23
votes
7 answers

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 headaches?) - even after I reduced their brightness as…
shaneykakes
  • 353
21
votes
8 answers

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 there an application to be installed?
Neilvert Noval
  • 377
20
votes
8 answers

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 'battery powered', and unplugging the laptop will…
payo
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20
votes
12 answers

Brightness keeps changing in Windows 10 x64

I have tried everything, going to advanced power settings, system settings but nothing. I have also tried to go to Intel options but i don't see any option to turn off power saving so I don't know what to do. It changes when im swapping windows, for…
맑음Jonnuh
  • 313
19
votes
7 answers

Is it possible to enable software brightness control on Dell U2412M

Well, I just wanted this yes/no simple question to Dell e-mail support. Their web site required service code just to send an e-mail. Then I tried their "technical" chat support. Some Indian person responded weirdly and finally answered that he/she…
Damn Vegetables
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19
votes
7 answers

Laptop dimming display on dark backgrounds

My Acer laptop running Windows 10 has a very annoying feature: when running on battery, the LCD backlight dims gradually when displaying a dark screen and brightens gradually when displaying light screen. This is especially annoying when switching…
Paul Lammertsma
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