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

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Latin characters on Mint - Alt key like Windows

How can I use Latin characters on Linux Mint? I've tried the alt key like on Windows but it doesn't work. I've searched and they say that alt doesn't work on Linux like on Windows. I've tried other ...
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2answers
784 views

How do I select text from terminal by using keyboard only?

I used to select text via mouse click+drag but I want to know if I can do the same thing via the keyboard only? I am talking about selecting text with the help of the keyboard on gnome-terminal, etc. ...
3
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1answer
63 views

How to make a comprehensive set of possibilities for defining GNU-screen “command characters”?

I want to somehow generate a comprehensive "menu" of all possible ways to set up the GNU-screen "command characters" for a standard, off-the-shelf "US keyboard" and a specific terminal emulator, say ...
3
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1answer
2k views

How to detect global key presses

I have an Asus laptop that has a special key that can be configured to launch any software (at least on Windows). The general question is: how can I detect any key press (globally)? Then, how ...
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2answers
297 views

Multi-function CapsLock without X

I would like to remap CapsLock to Esc when pressed by itself and Ctrl when pressed with another key without using X. This is similar to a previous question ( Remap CapsLock to Escape and Control ...
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2answers
2k views

Fix keyboard chattering/bouncing on the software side

I have a mechanical keyboard (Noppoo Choc Mini with Cherry MX Blue switches) and after a few weeks, some key presses are getting sent two times even though I press a single time. I found out that this ...
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2answers
670 views

The key codes for Caps Lock, Shift, Left Control and FN key?

Can somebody please provide the key codes for these keys: Caps Lock Left Shift Left Control Option key FN The key code I'm talking about is something along the lines of \<Esc>[200~, although ...
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3answers
2k views

Ubuntu 12.04 Gnome 3 “freezes” randomly - not a normal freeze though

Since upgrading to 12.04, I've randomly experienced this strange phenomenon where my mouse mostly doesn't work and keyboard mostly does. I have not been able to identify a cause for this. Sometimes it ...
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1answer
1k views

Unix User Level Keylogger

I need to record my own keystroke data for some academic research. I wrote a regular keylogger for Windows, but now I need to write one for a Unix environment, with the constraint that I have only ...
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1answer
1k views

Control and up/down keys in terminal for use by emacs

Is it possible to use C-up and C-down when running emacs in the terminal window (when starting emacs from the command line with the -nw flag)? What should my terminal send when I press C-up and C-down ...
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1answer
1k views

sysrq won't reboot with a keystroke, but will with echo “b” > /proc/sysrq-trigger

CentOS 6.2, 2.6.32-220.el6.x86_64 laptop. SysRQ is enabled for keyboard input, as is witnessed by: $ cat /proc/sys/kernel/sysrq 1 Common Magic SysRQ Keys are working such as alt-sysrq-h. However, ...
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4answers
2k views

Matlab gets “crazy” after type special characters

I'm using a computer running Ubuntu and I'm connected through ssh to a RedHat machine where I use Matlab in command line mode (matlab -nodesktop). Matlab version is 7.10.0.499 (R2010a). My problem ...
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1answer
92 views

Can't enter capital letters using shift key

In some applications entering capital letters works like hitting ESC key. Reproducing: Open LibreOffice document Select "Save as" (Unity dialog) Hit "Create folder" Enter a capital letter using ...
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2answers
511 views

How does an emulated keyboard work?

I have read that some USB devices emulate a keyboard and the information these devices send will be as if the information was typed on a keyboard. For example: a magnetic card reader can use an ...
3
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1answer
219 views

How to regain control of my computer?

I am running a database server on my computer. Sometimes it takes up so much memory resources that the system stop responding to keyboard and mouse inputs. Although I can move the mouse pointer and ...
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2answers
667 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
1k views

Setting repeat rate of USB keyboard automatically

I often connect a USB keyboard to my laptop, and when I plug it in, the default repeat rate is not what I want. I tried changing it using a udev script by adding a rule `ACTION=="add", ...
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1answer
385 views

Keyboard bindings from bash to zsh?

I have the following entries on my .inputrc for bash: "\C-p": history-search-backward "\C-n": history-search-forward "\e[A": history-search-backward "\e[B": history-search-forward "\e[C": ...
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1answer
743 views

Keyboard input not displayed on the screen?

We use the `exceed tool to connect to our UNIX servers, but sometimes the command-line behaves erratically. When I am typing some command on the command-line, nothing happens -- nothing is displayed ...
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2answers
629 views

Why does US International Keyboard break Alt_R

All adding the U.S. English International (with dead keys) keyboard layout breaks my Alt_R key. Any ideas why? I'm working on RHEL 5.5 using GNOME. The problem disappears if I remove the additional ...
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1answer
1k views

The caps lock and scroll lock lights are flashing and everything is frozen

I was using a small Linux distro that was running X11 with JWM as its window manager. I was browsing a directory when all of a sudden the mouse froze and the keyboard became unresponsive. The caps ...
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1answer
202 views

Reading keypresses in shell using trap and Unix signals

I am having trouble understanding the purpose of trap and the multiple stty invocations in the snippet below. I was hoping someone could give me a rundown of what is happening. getkey() { local ...
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2answers
451 views

Execute script after period of inactivity

I'm looking for a way to execute certain script after period of inactivity and after completion of that period. By 'inactivity' I mean lack of mouse and keyboard events. E.g. I want: execute first ...
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1answer
611 views

How to remap the keys with xkeycaps?

I'm trying to remap different keys (for example, I want the "Y" to be "space"). XKeyCaps let me choose the keyboard, and shows correctly when one key is pressed. But the right click menu that allows ...
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1answer
291 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 ...
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1answer
619 views

How to get the actual keyboard device given the output of /proc/bus/input/devices?

When I run: cat /proc/bus/input/devices ...I receive the following output: ... I: Bus=0003 Vendor=040b Product=2000 Version=0110 N: Name="Generic USB Keyboard" P: Phys=usb-0000:00:1d.0-1/input0 ...
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1answer
851 views

Laptop keyboard occasionally stops working

I have a dirty solution that is to plug a USB keyboard in and execute the following command: setxkbmap -rules evdev -layout us -model evdev Afterward my keyboard will work. This solution only ...
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1answer
109 views

How to clear keybinding

I'm in Linux (if it's relevant: Fedora 17 x86_64, 3.6.11) and my laptop's PageUp key has gone ultrasensitive on me. I'd like to disable it (remap it to nothing at all) as I've never liked it where it ...
3
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1answer
718 views

Getting keyboard to work in debian 6.0 in order to unlock root partition

I just installed Debian 6.0, encrypted / and now I'm trying to boot. When GRUB comes up, I select Debian, it loads the initrd and asks for the root password, however I can't enter anything, because ...
3
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1answer
158 views

How to use the Meta/Alt Key with tput?

I want to redefine keybindings for the commandline of a lisp dialect. The commandline is actually modeled after Vi and implemented with tput/terminfo. I want an alternative version with Emacs ...
3
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1answer
3k views

Backspace, del, arrow keys not working with interactive programs in Tilda

I currently run Openbox on a light netinstall of Debian. In Tilda, when I use a program like nslookup or winexe, some of my keys do not work properly. Backspace generates ^? Up generates ^[[A ...
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1answer
1k views

Why does the setxkbmap compose key mess with other keys?

I just found a tip to set the compose key manually: setxkbmap -option compose:caps Unfortunately, after running this several keypresses act as if the compose key had been pressed. For example, to ...
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2answers
2k views

What does this output from xev mean?

I'm interested in remapping some keys on my keyboard. In particular, I want to hold down the Function key, press the F1 key, and have this trigger a script. I know that xev is useful for figuring out ...
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2answers
706 views

Uppercase input turns on periodically

I have some problem. Every 3-5 second everything, that I input from keyboard became UPPERCASE only. I also have two keyboard layouts: us and ua. And when uppercase happens - I can't switch my keyboard ...
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1answer
4k views

Keyboard Problem with Debian testing and gdm3

I'm driving a Debian testing machine that is running fine. But since testing includes Linux Kernel 3 I have the following problem: While booting all is working (I mean especially the keyboard) - ...
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1answer
2k views

PS/2 Keyboard & Mouse not working AFTER boot

My CPU is 64 bit, I have a PS/2 keyboard and a PS/2 mouse and I have tried Live CDs of Ubuntu, Kubuntu, Fedora, Arch Linux, Wubi installations, 32 and 64 bit (my CPU is 64 bit) and Puppy Linux. I am ...
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1answer
1k views

Keyboard (mostly) doesn't work in Wine

When I run any program in wine (e.g. notepad), I can use the keyboard just fine until I click the mouse. As soon as I click the mouse for any reason, the keyboard stops working entirely. I'm using ...
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1answer
1k views

Automating typing strings in xmacro

Could you show me how to write macro in xmacro (that will work in whole desktop environment) that is able to expand strings? E.g. I will type "thx" and it will expand to "thank you".
3
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1answer
3k views

How to change the USB keyboard layout in an OpenBSD console?

I may be abusing the word console but I mean the mode without X i.e. pressing ^+Alt F1 and then log as other user where I want to use my chosen layout with USB keyboard. X works, it configures the ...
3
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1answer
139 views

Sending key press signals to a background process

I have been learning about daemons and writing them in C. I want to make the daemon receive the global key press signals in Ubuntu, and write the received key-presses to a separate file. Is there any ...
3
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1answer
61 views

TTY being flooded by button that doesn't exist being held down

Alright, I'm not really sure what's going on here. My laptop is a Dell precision m4800 running Ubuntu 15.04 64bit. It boots fast, without any issues, and I am able to login and generally go about my ...
3
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1answer
270 views

Connect a keyboard / IR controller to a command line program running in a screen

I'm trying to have my Raspberry Pi function as a GUIless music player. I've got Arch Linux installed, and use it through ssh. I've got also an IR receiver dongle, and I'm planning to use it to control ...
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4answers
4k views

USB keyboard doesn't work with Debian installer

I have a wired USB keyboard. I've written the latest netinstall Wheezy image on my USB pendrive (using dd). It boots but the installer doesn't recognize the keyboard! (The same pendrive works on my ...
3
votes
1answer
103 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 ...
3
votes
1answer
2k 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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1answer
789 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 ...
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1answer
2k views

USB keyboard only works intermittently in GRUB 2 on reboots - how to make it work consistently?

Something weird is going on with my keyboard. The keyboard is a USB-connected Unicomp, which works absolutely flawlessly once the computer is up and running. However, GRUB 2 (specifically, ...
3
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1answer
236 views

Archlinux gizmod

I've recently installed Archlinux on my laptop and it's been doing everything I needed except one thing: key bindings. I wanted to be able to use the volume buttons (including when in a full screen ...
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1answer
579 views

How do I remap my caps lock key to ctrl+x within x.org?

I've seen some setxkbmap stuff when talking about key mappings, but ctrl-c isn't a single key. Ideally, I would love to make it a copy/paste key but that seems impossible on Linux. Is there a way ...
3
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1answer
417 views

Just installed openSUSE 11.3, and after 5 seconds , my keyboard goes to sleep for 1-2 characters?

My keyboard skips one or two characters, whenever I stop typing for 5 seconds or more. Since I just installed 11.3 openSUSE, I don't know if this issue is an improper configuration, a bug in 11.3, or ...