General keyboard topics, including keyboard hardware and keyboard functionality in software.

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AltGr key released when rappidlby pressing other keys

I have a Norwegian Lenovo USB keyboard. When I hold AltGr and press v and b rapidly, it produces “bvbv instead of “”“”“”. I get the latter, expected, result when pressing v and b slowly. Never ...
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1answer
65 views

pressing @ in the keyboard gives " (and # gives £ ) in mint16

Hello I am using mint16(cinnamon). When I try to write @ it shows ". That is, key functioning of these two keys has got swapped somehow. Can someone please suggest a way to get rid of this problem.
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1answer
69 views

Since I execute 'stty erase ~' I can't type / anymore in Putty

Yesterday I was fed up with being forced to type Caps+Backspace to erase character in Putty, because a Backspace was printing a ~. I found some info on internet saying you should type stty erase ~, or ...
3
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1answer
291 views

How to turn on Keyboard Autorepeat permanently on VMware instances of CentOS 6?

In my lab we have about 40-50 machines, all cloned with the same image of CentOS 6. For some reason the keyboard auto repeat function decides to randomly turn itself off. Typically we just have ...
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1answer
87 views

How to display the current keyboard layout?

Is there a utility that allows to graphically display the current keyboard layout? This can be useful, for example, when writing in a foreign language and having the physical keyboard only ...
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256 views

Is there a way to turn on the function key indicator based on capslock status on Lenovo ThinkPad Yoga?

The Capslock key comes with no LED indicator light on newer ThinkPad models. The Fn key has a light for when FnLk (function lock) is turned on (as if that's more important that the capsloack ...
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2answers
503 views

How can I set the keyboard right on X?

Note: forked of this per recommendation here. I made a foolish typo for UTF-8, and expected that when I fixed it, the keyboard on X would work right. Since making this errant change, I was no ...
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255 views

install opensuse: Brightness is too low and keyboard fn keys do not work

I installed OpenSUSE 13.1 in dual boot on my Samsung ATIV Book 6 pre-installed with Windows 8 with a USB key (ultrabook, no DVD reader at the moment). Brightness is too low and keyboard fn keys do ...
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1answer
200 views

how to send keyboard signal using a shell script

I have an application in graphical interface that when I run it, it's not opened in full screen mode, but when I use the keyboard shortcut Alt+Ctrl+M , it becomes fullscreen, I want to change the ...
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1answer
71 views

Writing single-handed layouts for X

I know someone who'd really like to be able to type with only the left hand, so I had the idea of writing a layout which "switches" the sides of the keyboard when the caps lock key is pressed. For ...
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1answer
151 views

How to find out the escape sequence my keyboards sends to terminal?

Let's say we have a generic keyboard with some unknown keys which may send escape sequences to terminal. The keyboard is connected to an xterm terminal emulator running on a generic BSD/Linux. To ...
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59 views

OS X-like deadkeys behavior on Linux

I'm on Debian (actually Crunchbang), and my notebook has a default US layout keyboard. My native language is Brazilian Portuguese (pt-BR), so I've changed my layout with setxkbmap -layout us -variant ...
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1answer
156 views

How do I find out the keycodes for Ctrl+up and down arrow for TERM=screen?

I am using tmux a lot, and I have already managed to tune my OS X terminal to send the correct key codes for Ctrl+left and right arrow (\033b and \033f). I found those information on the web. However, ...
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2answers
48 views

GRUB2 and Foreign Keyboards

If I have GRUB2 installed on a system that is using a foreign keyboard and I want to use CLI Mode, what key would I press? On Latin-based keyboards, we would press "C", but other alphabets lack the ...
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169 views

X keyboard layout unable to toggle

I don't understand why alt_shift_toggle is not triggers keyboard layout switch This is what I have localectl status System Locale: LANG=en_US.UTF-8 VC Keymap: us X11 Layout: us,ru X11 ...
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2answers
233 views

How do I disable the left CTRL on Ubuntu 13.10?

How do I disable the left CTRL on Ubuntu 13.10? Actually I can do it already. All I need to run is xmodmap -e "keycode 37 = " The problem I have is this only works if I run it from the terminal ...
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2answers
163 views

How to disable onboard (on-screen keyboard) that automatically starts when I log onto my system?

whenever I login to my system (Ubuntu 13.10) onboard (on-screen keyboard) automatically runs. I don't want it to run any more. Why does it run automatically & how to disable it? Long back as far ...
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3answers
39 views

Before logging in my system, any way to make a key simulate another key?

In my keyboard I button doesn't work. I had earlier asked a Q on how to make a key simulate another key. That Q solved the issue only after I logged in my system. I'm working on Ubuntu 13.04. But how ...
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1answer
42 views

How do I generate the sequence “\e[Z” in a terminal?

It is bound to menu-complete in GNU readline. $ bind -p|grep menu "\e[Z": menu-complete # menu-complete-backward (not bound) # old-menu-complete (not bound) I think it's Meta-something.
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1answer
411 views

Remap keys on GNOME3.8 using xmodmap?

I want to remap some keys on my keyboard, specifically: page up key to home and page down to end. On previous versions of GNOME 3 I just created a .xinitrc file that contained: cat .xinitrc ...
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0answers
155 views

xmodmap for key combination

With Logitech K290 keyboard via USB, F. keys are not accessible by default, and I need to press Fn before using them, which is not really usable. The Fn key alone does not fire any event in xev. ...
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0answers
46 views

Detach keyboard from the kernel

I am writing a remote controller app for an octocopter and want to use a keyboard as an input device for this app but I don't want it to have any effect outside this app. Somehow I would like to make ...
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4answers
225 views

Continue for loop by keyboard

I have user account on a linux machine which I do not know its exact IP address. But I know a range which it is ran on one of them. I want to check which server is my desired server. There are some ...
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1answer
70 views

How to make a key simulate another key?

In my keyboard the I key doesn't work. So, I use an on-screen keyboard. I'm using Ubuntu 13.04. But its hectic. Is there a way so that I can make another key (for example Home on my keypad) to behave ...
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2answers
351 views

Disable the external keyboard from a script

I have a udev rule for my external keyboard. I can catch events, and by running a script I can also reach udev env variables. Can I disable keyboard with udev? Or must I use a script to disable the ...
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90 views

Keyboard backlight is very dim

I have a Samsung Series 9 running Fedora. It has a backlit keyboard but even at the maximum setting, keys are not readable. The functions keys controlling the level are working, the OSD indicator ...
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160 views

udev rule for bluetooth device(logitec)

I want to write udev rule for a Logitec Bluetooth. My keyboard and mouse connect to PC as one Bluetooth device. When I monitor udev, I see there are separate events for keyboard and mouse. I want to ...
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1answer
181 views

Stop laptop keys acting as a numpad with numlock on

I have bought an USB number pad and it's working as expected. Anyway, to use number keys, I need num lock on, and if I turn it on, my keyboard numpad sends numbers instead of the letters... How to ...
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4answers
930 views

Recognise extra keyboard keys: Steelseries Apex

I've got a new keyboard (Steelseries Apex). It has extra key, but I can't get linux to detect it. I tried xev, getscancodes, showkey --scancodes and dmesg! Any of those command give me error or code ...
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78 views

CapsLock as modifier key for application keymaps

I am developer and currently I am using Ubuntu Linux with PyCharm IDE for development of website. In order to improve typing performance I consider change CapsLock to Hyper_L and assign it to mod3 ...
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4answers
646 views

Is there any reason why I get ^[[A when I press up arrow at the console login screen?

Whenever I'm at the console login, I press up arrow intentionally to see the previously typed commands. But I see this ^[[A. But when I press Ctrl Alt Print Screen Scroll Lock Pause Break Page Up ...
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1answer
129 views

Where in the linux kernel sources can I find a list of the different keyboard scancodes?

I was looking for a list of keyboard scancodes in the linux kernel sources, but I did not find anything. Does someone know where to find these? Especially the USB scancodes would be interesting.
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113 views

Mint keyboard mappings ignored [closed]

I turned off my computer for the first time in a while last night, and this morning the keyboard isn't behaving. The Dvorak layout is still ok, but the caps lock isn't acting as a backspace, even ...
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2answers
123 views

How does a BIOS password work?

I have created a BIOS password. I use the Dvorak keyboard layout. When I switch my keyboard layout to Qwerty and restart, and then type password in with the different layout, there is no change. ...
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3answers
313 views

How can I write a “idempotent” .Xmodmap

Currently I have an .Xmodmap file that changes my Command to Ctrl, then changes my Ctrl to Super (I'm running Linux on a Mac). It works quite well, when only run once but on successive runs (for ...
2
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1answer
248 views

How to use numeric keypad as mouse?

Is there a way in Linux mint to use numpad as a mouse on my desktop. I have tried shift+numlock but it did not work. Is there a package that I must install? Articles on the Internet are too old to ...
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9answers
1k views

Keep NumLock always on

I have standard keyboard with numerical keys on the right side (I guess it's called 104-key keyboard). I want to use the numerical keys only as numerical keys. That means, I don't want the NumLock to ...
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148 views

USB Mouse and Keyboard not working in Linux 4 Tegra

I'm new to Tegra Linux development. I have a Tamontem NG Evaluation board with the Tegra 3 Chip. I installed L4T sample file system from NVIDIA Tegra resources ...
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0answers
131 views

Remapping shifted function keys in XKB

I'm working on a keyboard layout for the Khmer language and I'm quickly running out of space. My aim is to create a keymap that includes all the characters in the Khmer script as well was their ...
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0answers
189 views

Strange behaviour from special keyboard keys

OS: Linux Mint 13 Maya - MATE So, I had a new keyboard through today and there is something strange going on. The following keys are identified as the Shift key. LEFT SHIFT RIGHT SHIFT ...
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0answers
87 views

Keyboard input to be translated to gamepad (joystick) input?

I'm trying to participate in Steam Hardware Beta for the Steam Machine but I can't complete one of the tasks "Launch and play a game using a gamepad in Big Picture mode" because I don't have a gamepad ...
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2answers
796 views

Is it possible for a daemon (i.e. background) process to look for key-presses from a USB keyboard?

I'm working on an embedded Linux project where I will be developing a program that will run automatically on bootup and interact with the user via a character display and some sort of button array. ...
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3answers
5k views

Does the Fn Lock (FnLk) on Thinkpad T440s work well with Linux?

I'm considering to buy a Lenovo Thinkpad T440s and to install Linux on it. According to the user guide and photos of T440s, to use F1-F12 you have to hold down the Fn key, or use Fn+Esc to enable "Fn ...
6
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1answer
633 views

How to disable keyboard?

Without unplugging my keyboard I'd like to disable it from the terminal; I was hoping that this could be done using rmmod but based on my currently loaded modules it doesn't look like it is possible. ...
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2answers
804 views

Script to quickly test all keyboard keys

I need to check some notebooks for bad keyboard keys, and so I'd like to speed that up as much as possible. I found nothing for this specific task, so my idea is a script that reads the pressed keys ...
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1answer
882 views

How to detect which keyboard device is being used

I'm working on a computer with two keyboards and two users. They are using different layouts. The two keyboards are identical. Their device ID can be found easily with xinput, but when typing we can't ...
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1answer
324 views

How to permanently disable the Insert key on Linux?

The Insert is located right next to Backspace. So when I am using Leafpad, Gedit, etc., I hit Insert by accident often, which causes the cursor to turn into a bold box which over-writes text as I ...
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1answer
273 views

Some keys keep getting randomnly ignored when typing on my laptop keyboard

Currently, I have Arch Linux 64-bit installed on the Razer Blade Pro laptop. The only problem I have is that some keystrokes get randomly ignored when typing at normal-fast speed (above 5 keys/sec ...
5
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1answer
336 views

Swapping <esc> and <caps lock> in a way that persists with external keyboards

I have a file called ~/.speedswapper which contains the following: ! Swap caps lock and escape remove Lock = Caps_Lock keysym Escape = Caps_Lock keysym Caps_Lock = Escape add Lock = Caps_Lock ...
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53 views

How to change layout as soon as a USB keyboard is attached automatically

I have a USB keyboard set, I attach it to my computer to use it with another language layout. The USB keyboad will type (e.g.) Russain. While the other (main) keyboard set will type English. To set ...