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Questions tagged [function-keys]

Questions about using the function keys in Ubuntu.

The function keys are the keys that are usually located on the top of a keyboard, marked F1-F9.

F1 F2 F3 F4 F5 F6 F7 F8 F9

Each key serves a different purpose and is often used with the Fn key, which is usually located at the bottom of the keyboard.

180 questions
145
votes
15 answers

How can I toggle the Fn (function) key?

Is there a way to toggle the Fn key? I'd like to be able to toggle it so I don't have to press Fn+F12 to raise the volume, for example. I'm running Ubuntu 16.04.1 LTS on an Asus D550C.
oscar
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31
votes
5 answers

Logitech K380 bluetooth keyboard - make function keys default

There is a software for Windows called "Logitech Options" which can switch media keys to function keys, but this setting is not remembered in keyboard. There are similar cases with other logitech keyboards already with solutions: K810…
Jerguš
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29
votes
3 answers

Fn Media keys slow/delayed on ubuntu gnome 17.04

I just installed Ubuntu 17.04 on my Asus ROG GL752VW laptop and I decided to install gnome-shell and then install ubuntu-gnome-desktop. After some use, I noticed a delay when using Fn + F5or F6 as media controls. The first time I push these key…
Jose Valencia
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23
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5 answers

Function Keys Do Not work (Brightness & Sound) Ubuntu 16.04

Installed Ubuntu 16.04 on ASUS laptop, everything worked except fn keys. Cannot mute/increase/decrease volume (f10, f11, f12) or increase/decrease screen brightness (f5, f6). In troubleshooting I found people have similar issues regardless of…
Kelly
  • 623
19
votes
1 answer

How to swap between FN and Ctrl keys?

I have a Think Pad at work and the keyboard is really killing me (the left Ctrl is not on the most left and it has the FN key there). I use a lot of Ctrl + C, Ctrl + v while writing code and this FN key annoys me (I keep pressing it instead of…
TeAmEr
  • 440
18
votes
2 answers

How to switch/disable functionality of fn keys on Ubuntu - USB keyboard

Hi I have a problem with my new USB Lenovo keyboard, I can't (don't know how) switch Fn keys in Linux, on windows it was very easy. But I don't know what I can do on Linux to switch Fn keys (or disable), do you know any solution? I need standard…
Tomasz Cy-man
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17
votes
6 answers

How to make keyboard backlight Fn buttons work in Samsung Series 9?

I've just installed Ubuntu 12.10 on my Samsung 900X4C. However, I can't get the keyboard backlights to work. I added the keymaps as per community docs - Samsung Series 9 (section Function Keys). But regardless of pressing Fn+F9 or F10 (backlight…
mmalmeida
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16
votes
2 answers

F12 acting weird in 21.04, can no longer toggle Guake

Since upgrading to 21.04, I can no longer use Guake as expected. My F12 key does not appear to function the way it used to. It will not summon the Guake window, and when I manually open it, pressing F12 will not cause the window to hide. Instead,…
Scott Jacobi
  • 359
14
votes
5 answers

Function key on my acer laptop is always pressed

While typing normal keys I have to press fn (function key) as it seems that the function key is pressed all the time. What do I have to do to turn the function key off and it trigger it only when I press on it.
Vivek Kumar
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12
votes
8 answers

Brightness function keys not working

I have an ASUS X55A-SPD0204O laptop. The rest of the FN+Fx (where x = number) like sound + - mute, screen turn off, wireless etc. work perfectly. The problem is with the 2 brightness keys. They just won't work. Any suggestions?
Halta
  • 681
11
votes
1 answer

Putty, Byobu, Tmux and function keys

I'm currently trying to use byobu from PuTTY via ssh. I have currently putty-256color as Terminal-type string because otherwise not even Byobu bindings worked and I couldn't create new windows or move between them. I have Tmux backend and…
devster
  • 151
10
votes
2 answers

Fn + F5 / F6 brightness keys not working on Asus R556L

I've already tried many solutions I'd found on the web and none of them has worked. I'm using Ubuntu 16.04 LTS, fresh installation. This notebook has Intel HD Graphics 5500 and Nvidia GeForce 920M. I thought that installing the proprietary Nvidia…
Simbax
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10
votes
6 answers

14.04 Asus g56jr Fn + Brightness control

I have recently installed Ubuntu on my new Asus G56Jr laptop. I noticed that despite all the other Fn+fX keys are working, the screen brightness does not. I have already tried editing the grub, as many here earlier advised, with no result. Also I…
Hrachos
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9
votes
2 answers

Fn+F5,F6 keys to adjust brightness doesn't work

I have an Asus N56JK computer and I have tried many different options such as updating the Grub file in /etc/default/grub but to no avail. All other Function keys seems to be working but only function keys used to adjust brightness are not working?
user1287412
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9
votes
1 answer

Brightness adjustment Fn keys stopped working in 18.04

I realize there are potential duplicates of my question. However, I have scoured different pages and nothing solved my problem. I have recently done a fresh install of Ubuntu 18.04 (had the previous long-term release) and simply cannot get the…
Blitzkoder
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