Questions tagged [backlight]
A backlight is a form of illumination used in liquid crystal displays (LCDs).
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Keyboard backlight: how to have it turn off automatically after x minutes of inactivity on Macbook Air
Ik recently installed Ubuntu 22.04.3 LTS on my Macbook Air (i5-4250U, 4Gb, 121 Gb). System works like a charm, except for one thing. I want the keyboard backlight to automatically dim / turn off after ...
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Backlight of built-in display turns off when laptop lid is moved downwards from a certain angle
I want to prevent backlight of built-in display from turning off when laptop lid is moved downwards ( not even complete close, just downward movement ) from a certain angle via Ubuntu. The external ...
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Keyboard lights turn off on laptop poweroff
I have Xiaomi RedmiBook Pro 14 2021 with Ubuntu 23.10 on it recently installed as only system.
The laptop has keyboard backlight, which can be enabled/disabled by pressing Fn+F10, or with just F10. ...
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"Keyboard" option in Quick settings 23.10 doesn't activate backlight
So I recently installed 23.10 on a Lenovo Ideapad Flex 5, and I noticed in my Quick Settings a new option "Keyboard" that was unavailable in 23.04:
Clicking on the arrow shows two more ...
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How to automatically turn keyboard backlight on after suspend?
I am using Ubuntu 22.04.1 on a Lenovo ThinkPad P72. When I suspend the laptop the keyboard backlight turns off, and remains off after I wake/resume.
How can I automatically turn the keyboard ...
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Screen randomly gets almost black on Ubuntu 22.04 - 3 to 4 times a day
For quite a month now, I have the issue that my notebook screen randomly gets almost black. By almost I mean the content is still visible but hard to see. It seems like the backlight of the panel is ...
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External KeyBoard BackLight is Not Working On Ubuntu
Hello Guys I bought a new keyboard for my HP laptop and the backlight is not working
I tried :
xset led
and all commands with " xset " like set -l led or bla bla
so the only way was :
...
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Acer screen brightness cannot be controlled
On Acer Nitro laptop, I cannot control the brightness of the screen.
If I boot with kernel parameter acpi_backlight=native I get:
acer_wmi: Unknown function number - 4 - 0
If I boot with kernel ...
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intel_backlight directory does not exist in ubuntu 22.04
Previously I'd been changing my laptop screen brightness by directly changing the value of /sys/class/backlight/intel_backlight/brightness; But recently I noticed that intel_backlight directory is ...
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After installing Ubuntu 22.04 my keyboard backlight stopped working
Recently, I installed Ubuntu on my galaxy book 3 360 and the backlight of the keyboard doesn´t work anymore. When I power my laptop all the keyboard lights up, so they are working but after sometime ...
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External keyboard backlight problem
I tried to turn on my external keyboard's backlight using the commands (xset led on, xset -led 3 then xset led 3) on Ubuntu 22.04, and these commands are not working.
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Cannot get brightness keys to work on Ubuntu 22.04 / Lenovo IdeaPad 5
I have IdeaPad 5 15IAL7 on Ubuntu 22.04 LTS, kernel 5.19.0-46-generic. It is Intel Core i5 with Intel Iris XE graphics.
Special Fn keys all work, except the brightness. Volume is changing with ...
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How does one diagnose a hardware vs software problem with a laptop keyboard backlight?
I have Ubuntu 22.04 on a Dell Inspiron-7779 laptop. My keyboard backlight began to work intermittently and then failed completely. I'm trying to work out if this is a software issue or a hardware ...
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LG Gram laptop keyboard backlight refuses to work
Title pretty much. I've tried reloading the kernel module, I've tried xset led 3, I've tried using brightnessctl, nothing works. It's not a hardware issue, since in windows 10 it works just fine, and ...
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How do I enable changing the backlight brightness on my laptop? (Kubuntu)
I recently installed Kubuntu 22.04 with KDE on my Pixelbook (2017), and the backlight of the monitor either is at maximum brightness, or off.
I have tried manually changing values in /sys/class/...
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Thinkpad L14 G4 AMD Keyboard backlight slider is not displaying proper value under Ubuntu 22.04
I have a problem with my new Thinkpad where the backlight works but the 3 states are not properly shown on the slider when pressing FN+Spacebar. They're off by one, as in the keyboard backlight will ...
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Thinkpad L14 G4 AMD Keyboard backlight slider is not displaying proper value under Ubuntu 22.04
I have a problem with my new Thinkpad where the backlight works but the 3 states are not properly shown on the slider when pressing FN+Spacebar. They're off by one, as in the keyboard backlight will ...
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Screen brightness not dimming before screen blank on ubuntu 22.10
I tried to dim screen brightness below minimum.
did change values in /sys/class/backlight/intel_backlight/brightness....
now screen brightness is not dimming before screen goes blank on ubuntu 22.10. ...
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Enabling keyboard backlight at startup
I have a Lenovo IdeaPad wit Ubutnu 22.10 and I have an issue with keyboard backligh: every boot I need to enable with the function keys.
Is there a way to avoid this and keep it always acive?
I found ...
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Ubuntu 22.04 on Late 2012 iMac can't get display to turn off completely
I have setup Ubuntu 22.04 recently on an old Late-2012 iMac, which I have setup to be a simple media server.
Everything is working well, but I can't seem to get the display to turn completely off. ...
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Clevo keyboard backlight won't turn off after upgrading to Ubuntu 22.04
When I upgraded from Ubuntu 20.04 to 22.04, my laptop keyboard backlight got stuck as permanently on. The extension I was using to control the backlight, clevo-keyboard-gnome-extension, "is ...
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Brightness control "Up"/"Down" with xrandr (Ubuntu 22.04)
I am happily using the "brightness" command to control my TV as my primary display right now. But since I am working in a somewhat dim environment I was wondering if there is a way to not ...
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Ubuntu/Wayland: Turn off screen via FN keys
On my old laptop, I was able to turn off the screen by pressing FN + BRIGHTNESS DOWN until it reached 0 when I was running Linux Mint. Now, I want to replicate this on Ubuntu 20.04 with Wayland, but I ...
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How do I change what variable gets changed when the brightness control is triggered?
I am facing a problem, I am not able to change the brightness on my dell G15 5515. Though the brightness control GUI shows up and reacts to brightness up and down key, it doesn't do anything.
But, I ...
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How to lower brightness beyond minimum for laptop screen in Ubuntu 22.04?
Problem
My laptop's screen remains too bright at night, even at the minimum brightness.
Solution I'd like
A tool that lets me change brightness beyond minimum brightness.
What I've tried already
...
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Laptop backlight adjusts max brightness during boot
I'm somewhat of a Ubuntu noob. I've been trying to fix this problem on and off for quite some time and figure I would just ask.
I'm using Ubuntu 20.04, everything was fine. My screen brightness was ...
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How to enable keyboard backlight in MSI GE 76 Raider 11UE?
I'm running 22.04 on a MSI GE76 Raider 11UE. The keyboard backlight is disabled as soon as the kernel loads. It works just fine in Windows and in the GRUB boot menu, and shows up in lsusb:
Bus 004 ...
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System sometimes displays blinking cursor, won't boot when loading with acpi_backlight=vendor
A couple months ago I started experiencing an issue where the system occasionally will not boot into the desktop environment and simply displays a blinking cursor. When this happens, there is just a ...
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Long start up for: systemd-backlight@backlight:nvidia_0.service
I am new to Linux (Ubuntu 20.04.4 LTS) and am attempting to decrease my start up time on my Predator laptop. There are a number of different areas I could target to decrease the start-up time, but for ...
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Back-light keyboard's lights are not working after upgrading to Ubuntu 22.04
My backlight keyboard was working fine. I used to just use xset led on and the keyboard would just turn on its lights; however, after upgrading to 22.04. xset led on does not work anymore. I would be ...
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How can I control the keyboardbacklight?
I bought a Gigabyte G5 MD laptop which came pre-installed with Windows OS. So, I installed Ubuntu 20.04.02 LTS as dual OS. Now, The keyboard backlight only keeps the blue light on and I can't find a ...
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Can't change brightness on version 22.04
I'm new to Linux, so I use Linux on dualboot. At the first time of installing Ubuntu, the brightness slider was working fine but when I made some updates + installed an Nvidia driver the slider is not ...
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Brightness control Ubuntu Nvidia GPU
I am using a Thinkbook Gen 2 Laptop with Ubuntu 22.04 LTS freshly installed.
I bumped into the same problem as many other people: the brightness of the screen doesn't change neither with the keyboard ...
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Not able to adjust brightness in Thinkpad E14 Laptop
My Laptop has the following configuration.
Processor: 11th Gen Intel® Core™ i5-1135G7 @ 2.40GHz × 8
Graphics: llvmpipe (LLVM 12.0.0, 256 bits)
OS Name: Ubuntu 20.04.3 LTS
GNOME Version: 3.36.8
I ...
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How permanently disable keyboard backlight on Ubuntu 20.04
I have installed Ubuntu on Gigabyte Aorus pro B560M motherboard. It worked fine at first but then and after resetting the BIOS(to fix a networking issue) now it has an annoying behavior of keyboard ...
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How to turn off keyboard and lid lights for asus rog ubuntu 20.04 in SLEEP mode?
I have a ROG Strix G731G and I already downloaded and use the rogauracore from this repository https://github.com/wroberts/rogauracore.git.
I use the sudo rogauracore black mode and the lights are off ...
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How to manage keyboard backlight on MSI Alpha 15 2021
I recently dual booted my laptop with Ubuntu. It is msi alpha 15 with ryzen 7 5800h. The backlight just stays on always whenever i use Ubuntu.
It doesn't have steelseries keyboard. It's maybe ...
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Enable brightness/volume popup for keyboard backlight, numlock, caps, et al
In the following figure you can see a popup which is displayed whenever I (de)activate the microphone. A similar popup is displayed when changing the screen brightness of my laptop or when changing ...
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keyboard back-light not working in Realme book but works in windows dual boot
I have dual boot windows 11 and ubuntu 20.04. My keyboard backlight is working in Windows 11 but not in ubuntu. I tried enabling it in settings but I can't find any option to do so.
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Dim screen Backlight
My laptop’s backlight is stuck, no matter what I do, the brightness controls work but nothing's clear enough as the backlight is still dim. I Have tried updating the mesa drivers ( I use a hp ...
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Ubuntu 20.04 backlight problem, only boots from recovery mode
As a new Ubuntu user, I am facing a problem with my backlight.
After succesfully dual booting Windows 11 and Ubuntu 20.04.3 LTS on my HP ENVY x360 15-es0570nd (Intel core i7 processor and NVIDIA ...
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Can't Adjust Screen Brightness on Lenovo Legion 5 15ACH6H AMDGPU Ryzen 5800H Ubuntu 21.10
Got this device (Lenovo Legion 5 Gen 6) a few days ago, setting up Ubuntu (dual boot alongside Windows) on it has been a real hassle. Wifi didn't work out of the box, found out that Mediatek MT7921e ...
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Hirsute/Impish - Laptop backlight brightness not controllable with nvidia-drivers-470
I updated my nVidia drivers from 460 to 470 in order to use GloriousEggroll's fork of Proton with Steam. Since then, my laptop's brightness has been stuck on full. The GUI brightness control slides ...
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NVidia backlight control (Again) Ubuntu 21.04
Wasn't sure where to post this, so it's in both the forums and also AskUbuntu. Sorry for the cross posting.
Hi,
I've been using Ubuntu for about a year now and have just bought a new laptop.
I ...
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How can I disable MX Keys Wireless Keyboard backlight
How can I disable Logitech MX Keys Wireless Keyboard backlight on 20.04. I want to turn off LEDs completely with a GUI or command line tool.
I was able to turn off LEDs of my Logitech mouse with Piper ...
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Brightness and sound not working after downgrading to 18.04 from 20.04 on dell latitude 3420 intel iris graphics
I have received my laptop(dell latitude 3420) pre-installed with ubuntu 20.04, as there is a personal requirement I have removed 20.04 and installed 18.04. After installing 18.04 I found sound is not ...
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Lost macbook pro LCD backlight brightness controls after installing nvidia driver
I installed Ubuntu 20.04 LTS with the 5.11.0-34-generic kernel on my mid-2009 macbook pro which has nvidia geforce 9400M graphics hardware. Suspend and wake from suspend does not work with the nouveau ...
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brightness control with ddcci and gnome slider
I have connected an external touch to my mini pc. DDCCI module seems to work for me.
eg
echo 90 > /sys/class/backlight/ddcci5/brightness
results in a change of brightness. But unfortunately I ...
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Ubuntu 20.04. How do I turn on the keyboard backlight of my 2010 model Acer Aspire 5745?
I am using Ubuntu 20.04. I have an old Acer Aspire 5745-7247 I purchased back in 2010. I looked at the Ubuntu keyboard shortcut options in the keyboard settings, and keyboard backlight isn't listed ...
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How Do I Configure Ubuntu 21.04 so the Display's Backlight Goes Off when the Display is Locked
I am running Ubuntu 21.04 LTS on a MacBookPro (5.3 model).
The display's backlight does not go off when the computer is inactive (Apple Logo is always lit).
Configuration:
I was getting a purple ...
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