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Keyboard backlight doesn’t work on kubuntu 24.04

I am using a Lenovo IdeaPad Slim 3 with Kubuntu 24.04 installed. This laptop provides two brightness levels for the keyboard backlight, but I am only able to toggle the first brightness level using Fn ...
zyonax's user avatar
  • 1
0 votes
1 answer
550 views

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 ...
Deniss Kozlovs's user avatar
0 votes
0 answers
237 views

Lubuntu 22.04.2 LTS (Jammy Jellyfish) shortcut keys are not working for brightness

The shortcut keys for brightness worked great with Lubuntu 20.04.5 LTS (Focal Fossa) but do not work with Lubuntu 22.04.2 LTS (Jammy Jellyfish). I use F1 (dimmer) and F2 (brighter). I am disappointed ...
earthpages's user avatar
0 votes
0 answers
182 views

Adjusting the increments for brightness changes in Lubuntu 20.04 LTS

When I adjust with the mouse (Preferences >> LXQT Settings >> Brightness) I can get fine gradations but when I adjust with my assigned Shortcut Keys (Preferences >> LXQT Settings >...
earthpages's user avatar
0 votes
1 answer
986 views

Brightness Fn keys not working

I can't increase/decrease screen brightness with Fn-keys. This is a Lenovo Thinkpad L15. OS is xubuntu 22.04. -The rest of Fn-keys work ok (e.g. volume up/down). -Brightness slider in Power Manager ...
gabriel's user avatar
1 vote
1 answer
1k views

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 ...
Green grün 绿色 vert зеленый's user avatar
0 votes
1 answer
134 views

i've hit a bunch of keys at the same time accidentally and now my brightness buttons are not working on ubuntu 20.04

my dog walked on my laptop and now the brightness keys are not working. they are f6 and f7 for me. the sound keys also didn't work but I fixed them by going to settings > keyboard > shortcuts ...
sweetie sakura's user avatar
1 vote
0 answers
562 views

Gnome custom keyboard shortcut for monitor brightness increase not working

In Ubuntu 22.04 I can control my external monitor using ddccontrol. To increase brightness by 5%, I can type ddccontrol -r 0x10 -W 5 dev:/dev/i2c-6. To decrease brightness by 5%, I can type ddccontrol ...
Brad's user avatar
  • 131
1 vote
1 answer
107 views

Set custom shortcut keys for brightness on iMac 2011 Ubuntu 20.10

It works on the slider and it previously worked on a keyboard that had brightness keys. My new keyboard does not have dedicated keys. So I want to add a keybind in settings -> keyboard shortcuts -&...
urs's user avatar
  • 59
2 votes
2 answers
4k views

Brightness keys (Fn + Left/Right) on Acer Nitro 5 not working

So, recently (roughly a week ago they were working) the brightness keyboard shortcuts on my Acer have stopped working. I can still change the brightness with the slider in Ubuntu's settings or by ...
Kowal's user avatar
  • 31
1 vote
0 answers
135 views

Repurpose Fn+Arrow keys to control brightness on laptops

I have a Lenovo X1 Carbon 7th Gen, where the brightness control keys are on the top row. Being a DELL veteran, I wanted to see if I could use Fn+↑ to raise and Fn+↓ to lower brightness. Using evtest, ...
Subhamoy S.'s user avatar
0 votes
1 answer
2k views

Huge lag and screen freezes changing the brightness on Ubuntu 20.04 using the hotkeys

When I press FN+F4(brightness down) or FN+F5(brightness up) to change the brightness of my screen on my Dell Vostro 5480. It freezes my screen and it seams to "hold" the key and keep ...
Shaian Ferronato's user avatar
0 votes
1 answer
803 views

How can I create a keyboard shortcut for screen brightness as the default <F4> and <F5> don't work?

I'm using an ASUS laptop and running Ubuntu 20.04 LTS from an SSD. With Windows, I can press F4 and F5 to adjust the brightness, but it's not possible while running Ubuntu. Keyboard shortcuts from ...
Amasa Levi's user avatar
2 votes
2 answers
3k views

Remap Keyboard Shortcut for Brightness Changing

First of all, I should clarify that I am attempting to run version 20.04 on a Chromebook. The hotkeys of a Chromebook become function keys when replacing ChromeOS with Ubuntu. If I am using Kubuntu, ...
Najeed's user avatar
  • 321
0 votes
1 answer
701 views

Brightness keyboard shortcut not working on Ubuntu 20.04 with GeForce MX230

I have a i7 10th with a MX230 GeForce. I have installed only Ubuntu 20.04. During Ubuntu's installation, I did this to install NVIDIA drivers. The current configuration is: I can play video games and ...
gabriel119435's user avatar
1 vote
2 answers
7k views

Brightness control in SwayWM (i3wm wayland)

So, I have the laptop without buttons on the keyboard for brightness control and when I try to change my config then these shortcuts are not working. Any ideas? # Sreen brightness controls bindsym $...
Igor Foxly's user avatar
2 votes
0 answers
239 views

a question for AMD 4600U:Ubuntu 20.04 LST, screen display brightness cannot be adjusted

cpu:amd 4600u This is an old question for a newly released CPU. If there is no answer, I will still be happy to post it here, and maybe provide some useful information. Yes, there are not many ...
jason bourne's user avatar
0 votes
0 answers
44 views

19.10: Brightness keys on Xubuntu don't change brightness but switch between mute/unmute instead

I have been using Xubuntu as single boot on my laptop for about one year and everything worked great, the keys on the keyboard did what they were meant to do. Then i needed to install Windows 10 for ...
user avatar
0 votes
1 answer
246 views

Brightness and wifi fn keys not working and laptop not suspend Ubuntu 18.04

I have hp pavilion gaming i5 8300h , gtx 1050ti and i'm using Ubuntu 18.04. brightness fn (f5 and f6) and wifi fn (f12) are not working and when i turn of the screen it don't suspend but just give ...
Mark Refaat's user avatar
0 votes
0 answers
125 views

commands work in terminal but don’t work if added as a custom keyboard shortcut

After things like xbacklight, light and acpilight didn’t work, I tried to add a custom shortcut for brightness control as my function keys don’t work. I found a workaround on YouTube which helped to ...
Tripatpal Singh's user avatar
1 vote
1 answer
425 views

asus fx-503 touchpad and fn keys not working

After installing Ubuntu 18.04, the touchpad of my Asus FX-503 (manual) has really low performance which is very vexing. Also, Function keys do not work for changing brightness or the keyboard back ...
S.Saghari's user avatar
1 vote
1 answer
116 views

Xubuntu 16.04 -> 18.04 media keys don't work, brightness keys are very laggy to enable

There are other posts on this, but nothing seems to help. Before when changing volume with media keys, you would see a little overlay (in the color you select in your theme) that shows the adjusted ...
Ray C's user avatar
  • 175
1 vote
0 answers
46 views

Enable fn keys to not only dim the screen but turn it completely off

On my Xiamo Mi Notebook Air 13 I can use the fn keys to increase and decrease screen brightness, but never below a minimum percentage. Is there any way to edit these keys so that they will allow me ...
berliny's user avatar
  • 91
1 vote
2 answers
2k views

Brightness key not working Acer ASPIRE v15

The brightness key (Fn + left/right arrows) on my Acer ASPIRE v15 laptop> on Ubuntu 16.04 LTS are not working. I can control the brightness by changing the value of brightness by editing the file: /...
rack_jack's user avatar
10 votes
10 answers
10k views

Lubuntu brightness/backlight issue

I freshly installed Lubuntu 18.10 with LXQT environment and here's my issue : I want to dim the backlight of my laptop with the keyboard shortcut (XF86) but when i press it, it changes the brightness(...
themathsdude's user avatar
2 votes
1 answer
2k views

Cannot change keyboard backlight with dbus-send

I have kde desktop environment, and Fn + F3 / F4 buttons cannot change keyboard brightness. I also assign other keys to increase or decrease keyboard brightness in global shortcuts menu, but its not ...
Tara S Volpe's user avatar
2 votes
0 answers
1k views

How to make keyboard backlight controls work in ASUS FX503VM?

Hello Ubuntu community. I've recently purchased the ASUS FX503VM laptop and I've managed to solve most of the "problems" so far in Ubuntu 18.04. The one that is bugging me for a week now is the ...
Subtilis's user avatar
3 votes
4 answers
17k views

How can I adjust the screen brightness in i3wm on Ubuntu 16.04?

I'm running Ubuntu 16.04 on a System76 laptop. The brightness controls (i.e. Fn+F8 and Fn+F9) work great in Unity/Compiz/Gnome/whatever is default, but when I change to using i3wm instead I get... ...
Wayne Werner's user avatar
  • 6,832
0 votes
1 answer
285 views

How do I bind Volume Up/Down/Mute and Brightness Up/Down keys in Lubuntu 16.04?

I just installed Lubuntu on my Lenovo Thinkpad 13 Chromebook using Crouton. I have Brightness Down, Brightness Up, Mute/Unmute, Volume Down, and Volume Up keys on my keyboard that I would like to ...
undyinglight's user avatar
7 votes
1 answer
3k views

Ubuntu 18.04 ASUS ZX53VW keyboard shortcuts, backlight not working

I've got a few problems with a fresh Ubuntu 18.04 installation on this notebook: Keyboard backlight does not work. I've tried several acpi_osi= settings in GRUB (e.g. the ones listed here), no ...
Leo Brito's user avatar
  • 215
2 votes
3 answers
13k views

Brightness Buttons not working in 18.04

Recently installed Ubuntu 18.04 after the automatic upgrade from 17.10 failed, resulting in my inability to turn on the system normally. After installing the OS the brightness controls on my laptop ...
akxer's user avatar
  • 2,046
3 votes
1 answer
2k views

Lenovo volume and brightness keys not working on Ubuntu 18.04

They worked fine in Ubuntu 17.04 and 17.10, but nothing happens in Ubuntu 18.04. Running xev I can see the key presses are being interpreted correctly. I see XF86AudioMute, XF86AudioRaiseVolume, ...
tobyink's user avatar
  • 131
2 votes
0 answers
187 views

Switching backlight brightness to zero by pressing fn-key

I have Ubuntu 16.04LTS running on my Dell XPS 15 9550. Until yesterday the fn-key for setting the brightness was able to set the brightness level to 0 (shutting backlight off completely) which I ...
Ben Hogan's user avatar
0 votes
0 answers
32 views

What is the best practice for defining different shortcut keys for separate keyboards?

Context I have Razer Blade 14 laptop, and I use a Apple Wireless Keyboard (version 2). The Settings > Keyboard > Shortcuts section only allows me to define one keyboard layout for both keyboards. ...
Spencer Hill's user avatar
0 votes
1 answer
445 views

Brightness keys not working and volume keys responds very slow

I am running Ubuntu 17.04 on a Dell XPS 15 (9560) and it's been working well for over a month. A few days ago I suddenly started having issues with the Fn-shortcuts for brightness and volume. ...
Mathias's user avatar
1 vote
0 answers
145 views

Smaller brightness interval when adjusting with hotkeys?

In Ubuntu 16.04 on my Lenovo ideapad 510s, I can use F11/F12 to get 22 different levels of brightness from virtually blank (1) to max (535), but from manually setting the level in /sys/class/backlight/...
Ithuvanian's user avatar
5 votes
3 answers
6k views

Control monitor brightness with keyboard shortcut?

I can control the brightness of my DELL S2216H connected with HDMI via the command: ddccontrol -p -r 0x10 -w 53 where in this example the number 53 represents the brightness level (range 0 to 100). ...
Sumeet Deshmukh's user avatar
1 vote
0 answers
425 views

Screen brightness hotkey stopped working with Ubuntu 16.10 (ASUS TP200SA-UHBF)

I'm slowly working through all the defects on a plain-vanilla Ubuntu 16.10 install on this machine but this one has me stumped. My screen brightness hotkeys, Fn-F5 and Fn-F6, worked fine on Ubuntu 16....
bartgrantham's user avatar
3 votes
1 answer
2k views

Can't assign a command for FN key

I've an ASUS F555L whith Ubuntu-GNOME 16.10 and I've a problem with the Fn key. I'm trying to set the brightness UP/DOWN with the key Fn+F5 and Fn+F6. I solved the brightness issue setting the command ...
fiok's user avatar
  • 31
2 votes
0 answers
371 views

Asus laptop backlight keys not working

I have an asus F554L laptop and the fn + f5, f6 brightness control keys are not working. I can control the brightness through settings. I have tried adding pcie_aspm=force acpi_osi= to ...
Àlex Torregrosa's user avatar
0 votes
1 answer
2k views

How to set threshold brightness in Xfce?

I would like to know how to set threshold brightness that can be adjusted via the brightness keys (F11, F12) in my case. When I press F11, the brightness is going too minimum that it ends up in black ...
JavaTechnical's user avatar
0 votes
1 answer
567 views

Switch backlight on and off with one key (script, xbacklight)

i own a Thinkpad yoga. This model has only function keys for increase or decrease the backlight. Minimum backlight does not switch the backlight completely off. So i use xbacklight to set the ...
Martin Mendler's user avatar
1 vote
0 answers
226 views

Ubuntu 16.04 Samsung R580 Display Brightness Keyboard Shortcut Issues

I have read many posts on the display brightness keyboard shortcuts issues in Ubuntu. Most have answers for Ubuntu 14 or prior, so I want to include as much information as possible. What Happens Upon ...
Troy Weber's user avatar
3 votes
1 answer
2k views

Screen brightness keys not working (fn + f5/f6) [duplicate]

i'm using ASUS K501U with Ubuntu 14.04 LTS and Gnome-shell 3.10.4, The screen brightness works only from settings, i tried that, but it disabled all my fn keys: In the terminal: sudo gedit /etc/...
Breahna David's user avatar
1 vote
1 answer
800 views

Brightness hotkey doesn't work on laptop asus k501ux [Ubuntu 16.04.1]

I have laptop asus k501ux, just installed ubuntu and it seems every key works except brightness controls, in my case it is Fn+F5 (up) and F6(down). any idea why is that happening and how to fix it?
Giorgi Khmaladze's user avatar
1 vote
1 answer
446 views

Revert usage of Fn key to control notebook (e.g. brightness, sound)

after upgrading Ubuntu to 16.04 on my Dell XPS 13 (2015) I noticed that the function keys are now "inverted". Before the update I had to press Fn and the corresponding F key at the top to change the ...
user3147268's user avatar
2 votes
1 answer
1k views

screen brightness keys stopped working -- ubuntu 14.04 LTS -- HP notebook

I installed Ubuntu 14.04 LTS last week on my HP Pavillion DV6700 notebook. It was working perfectly until last night when I turned on the notebook and noticed the screen brightness was set to the ...
Luís Muniz's user avatar
1 vote
0 answers
312 views

Brightness Fn key slow to change N3700 ( I've tried everything! )

I have an Acer R3-131T with the new Broadwell Intel Pentium N3700. My brightness works if it is adjusted in the system settings but when I use the combo "fn+brightness key (in this laptop are the ...
Adriano's user avatar
  • 11
0 votes
1 answer
2k views

HP Probook 450 G3 - screen brightness hotkeys not recognized

I've purchased this laptop: T6P76EA#ABF. The hotkeys to increase or decrease screen brightness seems to not being mapped, whatever options I can put on grub command line (i.e. acpi_backlight=video/...
Jadfa's user avatar
  • 11
0 votes
1 answer
920 views

Shortcut keys on Acer CB3-111-670 Chromebook running Ubuntu 15.10 not working

I have Ubuntu 15.10 running on the internal SSD of a Acer CB3-111-670 Chromebook. After some running around to fix the audio, the last thing (that I can tell) doesn't work is the shortcut keys (volume ...
vim_usr's user avatar
  • 109