Questions tagged [brightness]

Questions related to screen brightness.

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There is no option to modify laptop brightness on Ubuntu

There is option to modify system sound but no option to modify system brightness on Ubuntu. $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 20.04.2 LTS ...
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Adjust brightness without monitor buttons

My second monitor is quite an old LCD display using a VGA connection, and its image is really dark (even with brightness 100%). The only way I can increase it by a bit is by adjusting contrast, but it ...
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1answer
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HP EliteBook 840 G6 Brightnees Issue

Today I noticed that the brightness control bar in the action center is not adjusting the brightness. I updated all the available device updates and windows update, nothing fixed it. However the ...
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1answer
27 views

Whenever I plugin my laptop's charger, screen turns brighter and I don't want it, what's the solution?

Whenever I plugin the charger screen gets more brighter, I want it to remain as it is (as it was before charging) How to get this done?
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1answer
51 views

Colors too bright on laptop monitor when extended

I have a laptop and an external monitor set as my primary, when I extend to my laptop monitor using "Windows + P" my laptop screen is a little too bright, but automatically fixes itself when ...
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47 views

Change Windows 10 display brightness increment

Is it possible to change the increment value of the brightness hotkey (in my case Fn + F3 / F4). I've looked here, but there's only one same question which was not answered. I'm very certain that this ...
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Thinkpad 370 max brightness reduced after Windows update

An automatic Windows update caused by LCD backlight to no longer output its full brightness, even when set to 100%. Basically, what used to be 70% is now 100%. This is a very frustrating problem to ...
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51 views

New monitor looks “washed out” or “milky”

I recently got a new monitor and installed it, but it looks like washed out (black looks grey and too bright), i tried calibrating the brightness and contrast with the windows tool and with AMD ...
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2answers
36 views

How to adjust backlight on a laptop

I have an HP laptop and I am not satisfied on the brightness of the screen. The screen brightness setting is already at maximum. Is there a way how to adjust backlight of a laptop.
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Screen gets darker when renaming a file or googling [duplicate]

Lately, I have been having the following problem: My screen gets darker every time I try to rename a file or folder (any computer files or in browsers, google drive files, anywhere) I search for ...
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Laptop screen brightness is often only fully bright or fully dim

Full disclosure: This is a company-owned laptop. I am an IT professional responsible for keeping this laptop running, along with several hundred of its siblings and ancestors. This issue has happened ...
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Turn off laptop screen but NOT external display? (in Ubuntu)

I'm turning an old laptop into a dedicated media machine to play netflix, disney, etc. I installed ubuntu and it works fine except the laptop's screen dimming buttons don't work. This ruins its use as ...
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59 views

Laptop monitor brightness changes according to the image displayed

I have a windows 10 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 ...
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28 views

Remove/disable /sys/class backlight interface

I installed Debian+XFCE4 on an old netbook I found a couple of months ago. I placed xfce4-power-manager to the system tray panel and tried to change the display brightness with it, but the screen ...
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60 views

How to turn my brightness on my computer below the minimum?

I have Windows 10 acer predator HELIOS 300 laptop. I'm on minimum brightness, with night mode on and dark theme plugins and dark theme on for everything on all websites. And it helps during the day ...
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1answer
180 views

What can you do when you've accidentally turned your brightness all of the way down in a way that largely forbids keyboard use?

I've recently encountered something quite annoying in Xfce. I can control my brightness with my Fn key shortcuts only if I am not in a menu. This means that if I go in to the power manager plugin ...
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145 views

Confused as to what setting is making the active window brighter/higher gamma

I know this is frowned upon, but the video link is for reference only, so you can visualize my issue: https://youtu.be/3BhgM5o6kR0 Issue: When playing (it appears all games), and really only 'games' ...
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1answer
47 views

Software control of display illumination on hardware level?

I'm using an old ThinkPad R60 as my daily workhorse. It works like a charm, has IMHO the best keyboard in the world, and is rugged as hell thanks to its magnesium endoskeleton. Only the display is a ...
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32 views

in windows' 'night light', how does windows determine what are the times for 'sunrise' and 'sunset'?

For example here how does windows know that sunset in my area is 7:05pm and sunrise in my area is 5:58am?
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1answer
113 views

Can Brightness of Windows changed per App?

Is there any Software to customize Brightness for each app in Windows? is that possible with any software to do that?
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Change the increment value for increasing brightness with Fn key in Windows 10

I'm wondering if it's possible to change the increment value when I press the Fn + F12 combination in order to change the screen brightness. A similar question would be for decreasing brightness with ...
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232 views

Windows 10 - Night light settings - Default strength level

What is the default Night light settings Strength level on Windows 10?
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3answers
134 views

I have a lenovo idea pad slim. Whenever i unplug the charger the brightness dims. How do i turn this feature off?

I have tried to alter it but so far had no luck. I am unsure how to turn adaptive brightness off, and when i attemt to change my settings, it says 'balanced' is my only option in regards to display ...
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20 views

how to enable adaptive brightness on windows 10?

I have a Dell Latitude 5590. The problem is Screen brightness does not adapt when it is plugged or unplugged. It is always the same. I manually reduce brightness when it is unplugged. And it remains ...
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How to automatically set external monitor britghtenss to minimum whenever it is switched on?

I have an Acer laptop running windows 10, and I occasionally connect a Lenovo external monitor through HDMI to see things in a bigger screen. Unfortunately, the external display defaults to brightness ...
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1answer
109 views

Should the display's color match the wall?

Since the brightness of your display is supposed to match the 'brightness' (of the wall) behind the display; can I stick a large light orange shade of paper behind my LCD display and then use Windows ...
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1answer
75 views

Impossible to adjust brightness (only after sleep/wakeup) of my Thinkpad / Windows 7 laptop

I usually change my laptop's brightness with: Fn + Home / End: Increase/Decrease display brightness and it works well. However, ~50% of the time, after a Sleep / Resume, the brightness is stuck ...
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2answers
3k views

Kali Linux 2020 Brightness Issue

When I try to decrease brightness means it won't change. I have seen some videos in youtube channel and try to install 'apt-get install xblacklight' this command showing an error that 'E: Unable to ...
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2answers
12k views

HP Hotkey UWP Service: Fn is not working for brightness increasing/decreasing

I'm using HP Probook 440 G4 for last 3 months. And I couldn't increase/decrease brightness using Fn+F5/F6. Every time I tried, it said something like this. [Window name] HP Hotkey UWP Service Error: ...
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1answer
47 views

how to pick a lower brightness monitor

on my monitor now I'm on 0% brightness and during the day it's ok for me, but at night is much too bright, and I don't know at what specs to look at when buying a new monitor that will be able to get ...
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81 views

FFMEG Adjust Brightness Runtime

I use the following command to display yuv video; ffmpeg -v debug -re -probesize 32 -buffer_size 500000 -protocol_whitelist file,rtp,udp -strict -2 -i test.106.sdp -pix_fmt yuv420p -f sdl "CH1" test....
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1answer
194 views

Laptop Brightness not changable

I have a Lenovo Z500(non-touch), and just installed Windows 10. looks like I can only change the monitor's brightness when the Lenovo logo shows up after starting up the laptop. If I touch the ...
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Lenovo Z500 laptop screen goes dim after pressing F11

The screen brightness changed from normal to very low right after I pressed F11. Prior to pressing it, I was already unable to adjust the screen brightness as I was using linux mint - which seems to ...
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1answer
1k views

How to set screen brightness per application in Windows?

I hop between my browser and a few applications, and only one (an IDE) is dark-themed; for optimal viewing, I raise brightness on the IDE (IntelliJ IDEA) - but that makes every other application too ...
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527 views

KDE Plasma 5 - adjust “dimmed” screen brightness

KDE 5 power management allows to enable screen dimming after some period of inactivity: I'm using 900 nit high brightness display in laptop but I usually work at night so my typical "full" brightness ...
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2answers
747 views

Automate desktop screen brightness according to daytime on external monitor

I am using a regular external monitor with a PC and would like to be able to adjust the brightness of the monitor according to daytime automatically. So, in the morning it should start a bit darker ...
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1answer
81 views

Brightness control in Windows 10 doesn't work

I have installed Windows 10 on my XMG Clevo Model P150HM laptop and the brightness control does not work. Neither the buttons Fn + F8 / F9 (those are the buttons with the brightness icons) nor the ...
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1answer
2k views

Can't alter brightness on Dell XPS 15 9570 OLED (Ubuntu)

I cannot change my laptop's screen brightness via keyboard shortcuts or the slider in Gnome's drop down settings. I have tried Ubuntu 18.04, 19.04, and PopOS. I have tried every solution I could find ...
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1answer
122 views

Why can't I dim the brightness on my Windows 10 laptop?

I am unable to dim my laptop screen or turn on/enable the Night Light. It is always at 100% brightness, even when all slider bars move up and down. Symptoms: Using the function keys does not dim/...
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3answers
406 views

Are there PC monitors with ability to change hardware settings from PC, like brightness?

Really curious about the subject possibility. For instance, like we can change brightness on laptops. I'd like to adjust brightness and contrast at least, from OS. Quickly. P.S. Unfortunately, the ...
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39 views

Restore screen brightness automatically at boot

I want to run this script on ubuntu 19.04, after booting the OS to restore the previous screen brightness: echo 50 > /sys/class/backlight/nvidia_0/brightness How can I run this script so it takes ...
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1answer
132 views

Is it possible to increase the brightness (light) only in specific area of the display?

I have Lenovo T460, I use to listen songs (Video songs) while working on other window. Like this: I would like to increase the brightness only for the specific window, in this case the one window ...
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418 views

My computer's display goes bright and dark automatically

I have a Windows 10 PC but recently I realised that when I look at something bright my screen turns its brightness down but when I look at something dark my brightness goes bright? I don't know I'm ...
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51 views

Cannot change screen brightness after changing windows

I have an "HP Pavilion Power Laptop 15-cb0xx" laptop, it has initially windows 10 installed on it. For several reasons, I install windows 7 professional 64-bit on it instead of windows 10. But now, ...
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1answer
567 views

How to get 2 different iiyama monitors' color settings alike

I had an old 26" iiyama, as 2nd monitor which had his best time, so I ordered a new one. I'd love to have an identical monitor as my primary one, but unfortunately iiyama doesn't produce that model ...
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82 views

How to change Windows 10 brightness slider back to button after 19h1 update

The Windows 10 19H1 update changed the brightness button in the action center to a slider. I hate it and and want the button back - how do i do that?
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1answer
1k views

Broken Laptop Keyboard - Disable Brightness Keys or Add New Shortcuts in Windows 10

A few of my laptop keys no longer function after our 4 year old raged out on the keyboard in a fit of gaming frustration. One of these keys is the brightness increase fn key (f12). This means that ...
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1answer
39 views

f.lux overrides media player classic settings

I've bin using f.lux for a while and its a great app. As for me, the only (tiny) drawback that makes f.lux almost perfect but not completely perfect - is some issue that I'm having with video ...
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73 views

Screen automatically dims

So, I have a W10 HP ENVY laptop, I'm used to code with a dark themed IDLE, the thing is, the screen automatically dims whenever i'm using some dark themed program, but when I open a bright program (...
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1answer
321 views

Adjust brightness on screen without hardware buttons

I have a small Waveshare 7' Touch Screen LCD connected to my Windows 10 PC via HDMI. The screen is very bright by default. According to this document, soldering is required in order to access the ...

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