Questions tagged [brightness]

Questions related to screen brightness.

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Windows 10 brightness keys, speakers and earphone jack not working

I recently added an SSD to my HP laptop with a separate installation of Windows 10 on it. So, my laptop basically has two Windows installed in it - one in the new SSD and one in the old HDD. I use the ...
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Maya turns screen brightness to max every time I press or hold spacebar

The system is Windows 10, and Maya version is 2022. Whenever I press spacebar to switch to 4-view, it briefly turns the screen brightness to max. It returns to normal after I release spacebar. (sorry ...
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Increase brightness of desktop for kali linux through command line

how to increase brightness of desktop for kali linux through command line.I get an error so i tried the below mentioned steps: sudo apt-get install brightnessctl -y brightnessctl -q s +10% for ...
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One of two monitors is almost always dimmed

I experience strange brightness issues with my two monitors setup where one of them behaves as if it was dimmed. When this happens to my main monitor I try to reset the graphics driver by pressing ...
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Is it possible to dim an external IPS LED computer monitor below hardware brightness level zero (0)?

My primary external IPS LED computer monitor is too bright, even when its hardware brightness is set to zero (0) and its contrast is turned down. As such, I run a software tool that applies a ...
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Screen brightness is not responding to brightness control

I have recently replaced my 60Hz laptop screen with a 120Hz one And now screen brightness is not responding to brightness control (e.g. When i set the brightness value to 0%, the actual brightness ...
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ffmpeg - How to fix edge brightness (1 line of brilliant pixels)?

I would like to fix the brightness in the border of a video, it has 1 line of pixel on the right where the image continues but it's less brilliant than the rest of the video image. I don't want to ...
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"Outdoor Mode" on laptop gone, lost ~200 nits of brightness. Workarounds? Galaxy Flex Alpha 2

I just bought a Samsung Galaxy Flex Alpha 2 since it was touted to have a 600 nits brightness feature called "Outdoor Mode". There is a button (FN+F10) dedicated to it, which does nothing. ...
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Cannot change brightness on Lenovo Thinkpad E14 Gen3

I bought the Lenovo Thinkpad E14 Gen3 with AMD Ryzen 3 5300u APU recently, I received this laptop yesterday only. I use ArchLinux for my OS with the DWM window manager. This is the first time I am ...
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Monitor brightness adjusts UP automatically (no auto-brightness feature)

LG 27MP48HQ monitor set to zero brightness, adjusts itself back to level 9 brightness at odd intervals (painful to my light sensitive eyes!) My PC (windows 10 but a few years old) doesn’t have auto ...
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Adjust number of "steps" of Asus PC screen brightness?

I have an Asus laptop (64-bit, running Windows 10 Home). Under brightness settings, I have a slider that I can click and drag from 0 to 100 (corresponding to lowest to highest brightness). On my ...
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How is this app able to dim my laptop screen on Windows below 0 and how to replicate this through terminal commands?

I wanted to be able to dim my laptop screen below 0 in Windows 10 but wasn't able to do it through the terminal. I tried using this command in Powershell to lower the brightness to -1 instead of the ...
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When changing the brightness in linux the whole system freezes

I am currently using ARCH Linux, but I have tested it on other Linux distros too, (on UBUNTU 20.04, KALI LINUX 2019). Problem When I change the brightness from the keyboard button (My keyboard has ...
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Adjusting Ubuntu's minimum screen brightness value

By default Ubuntu 20.04 maps the screen brightness control keys (up/down) to some specified step values. It works great, but the minimum value is not zero. I want to adjust this minimum parameter so ...
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Dell AIO 5400 Brightness Control on Debian 11

I have Dell AIO 5400 with Debian 11 installed (about to release on 18th of August). Everything works awesome, except one little thing. I can't get the brightness control work. I understand that the OS ...
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Controlling laptop display backlight brightness (windows, intel graphics)

I'm trying to control the backlight brightness of my HP laptop integrated LCD, on Windows 10, with or without intel graphics driver. I wanna lower the brightness much lower than the minimum allowed by ...
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Is there a way to automatically/programatically set the HDR brightness in Windows 10 through Task Scheduler or something similar?

I'm asking this question in order to automate a workaround for a bug in Windows HDR implementation, where the HDR brightness setting will change to its minimum value when switching users in Windows. (...
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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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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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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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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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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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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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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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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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3 votes
1 answer
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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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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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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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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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1 vote
3 answers
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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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1 vote
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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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2 votes
1 answer
117 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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1 answer
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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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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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2 answers
18k 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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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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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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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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2 votes
1 answer
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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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2 votes
0 answers
867 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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3 answers
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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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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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2 votes
1 answer
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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1 answer
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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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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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