Check keyboard codes – cubicleate techpad

I have an amazing issue on my computer where “)” key continues to have always been pressed. It’s very aggravated and I’m not sure where the problem comes from. Nor is my outer keyboard or the laptop keyboard will answer when I can force the “)” key and I’m confused. As part of my investigation, I know a command line tool called “Showkeys” that helped me know what happened to my computer. I have returned this information from Geeks for Geeks Website But I want to comment on the details of my own way and also describes how I used it to help me.

place

I don’t know tunckey does not have a standalone application for the command line but a part of another package called KBD to open up. It may be the same as other distributions, I don’t investigate it so I can’t say that. Maybe it’s not something you need to install.

use

The use of Showkey is simpler. You have four options and one of them is to show help.

Simply use

Only in terminal type:

sudo showkey

It will appear any key you press by this keycode:

kb mode was ?UNKNOWN?
( if you are trying this under X, it might not work
since the X server is also reading /dev/console )
press any key (program terminates 10s after last keypress)...
keycode  28 release
qkeycode  16 press
keycode  16 release
wkeycode  17 press
keycode  17 release
ekeycode  18 press
keycode  18 release
rkeycode  19 press
keycode  19 release

You may not need anything more than this basic use is like all I need to know my problem but I take it as an opportunity to find out more about it.

Help Options

This is the help or information about the Tosto.

showkey -h

This shows basic help information about Tosto.

Usage: showkey (option...)
Options:
-a, --ascii       display the decimal/octal/hex values of the keys.
-s, --scancodes   display only the raw scan-codes.
-k, --keycodes    display only the interpreted keycodes (default).
-t, --timeout     set timeout, default 10
-h, --help        print this usage message.
-V, --version     print version number.
Report bugs to authors.

Ascii

I believe it can best know the choices. It gives you all the details of the juicy what makes it your forcing.

showkey -a

It shows not only the letter you pressed but also the related decimal, octal, and hex values ​​of key press. I just want to see the letter I pressed but other things are also cool.

Press any keys - Ctrl-D will terminate this program
q       113 0161 0x71
w       119 0167 0x77
e       101 0145 0x65
r       114 0162 0x72
t       116 0164 0x74
y       121 0171 0x79
^D        4 0004 0x04

Note that this option is not self-temout, you need to keep Ctrl + D to exit the program.

Scancodes

the – Option shows raw scancodes.

showkey -s

kb mode was ?UNKNOWN?
( if you are trying this under X, it might not work
since the X server is also reading /dev/console )
press any key (program terminates 10s after last keypress)...
0x9c 
q0x10 
0x90 
w0x11 
0x91 
e0x12 0x92 
r0x13 0x93 
t0x14 0x94 

What is the odd one sometimes it divides the codes in a key push into two lines. I don’t know why or I didn’t investigate it. Maybe it’s something I’m doing wrong?

Keycodes

This is also the default option and shows the raw keycode. You have already seen this one as it is the most basic.

showkey -k

PERIOD

The default time period is 10 seconds for choices but if you want to change it or up, it’s easy to do with t The choice and a related time in seconds. In this case the time title after 5 seconds.

showkey -t 5

kb mode was ?UNKNOWN?
( if you are trying this under X, it might not work
since the X server is also reading /dev/console )
press any key (program terminates 5s after last keypress)...
keycode  28 release
akeycode  30 press
keycode  30 release
jkeycode  36 press
keycode  36 release
ikeycode  23 press

Outside -In option, you can turn off the – or -k Options to get your choice time.

Last thought

It was a little thing that helped me learn an issue I had on my keyboard. I know that I’m a little fun and I know my secondary keyboard is pressed against my IMSAI 8080 replica below my desk. This is a foolish thing that refused my day for about 20 minutes but now I have a new tool to debug or investigate input.

References

https://kbd-project.org/
https://www.geeksforgeeks.org/sowkey-command-in-in-inux-with

Published to Cubicle

Linux, fitness and vintage tech are motivated to have a bad obsession with the opensuse project.
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2025-01-262025-01-26