A representation of a device that asynchronously transmits and receives serial data.

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2
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1answer
53 views

How to prevent CTS from toggling each time a tty is opened or closed?

Each time I open() or close() a tty device file, the RTS line of the port is toggled off for a moment. This seems to happen even when hardware flow control is disabled with raw -crtscts. Is there ...
0
votes
2answers
98 views

How to echo tty1 after displaying an image via fbi?

I can echo to /dev/tty1: echo "hello" > /dev/tty1 I can display an image (while booting or not): fbi -T 1 -noverbose -a test.png I can display the image after printing "hello" to the ...
0
votes
0answers
15 views

Is there a way to deport gnome terminal output into a regular tty? [duplicate]

I was dist-upgrade my old debian wheezy from a gnome terminal in X and suddenly i got some display bugs. Basically i wasn't able to see the console and the upgrade anymore, impossible then to answer ...
1
vote
1answer
52 views

Safe to blank /etc/securetty?

Assuming one is operating in AWS and there are no ways to connect via a non-pts terminal, is it safe to blank the /etc/securetty file? Are there any possible unintended consequences? I can't think of ...
0
votes
1answer
224 views

Can fbterm support 256 colors?

I have Arch without X and want to make my console solarized. I think I can't do that in tty, so I had installed fbterm and tried to play with fbtermrc, bashrc etc. $ tput colors 256 $ ...
1
vote
0answers
15 views

Editing missing characters in some charmap/keyboard

I use the abnt2 layout on my american keyboard, but the backslash key \ is missing. How can I remap some glyph to an unused key or combination (eg. CtrlAltE or AltGrE)? I knows only that ...
0
votes
1answer
581 views

How can I spawn a TTY text virtual console?

Due to (what I think is) some sort of bug on the Linux version (Kali v2.0) of my remote computer, my TTY text consoles do not start until I locally sit on the machine and press CtrlAltFn. I use to ...
1
vote
2answers
3k views

fsck problem when booting Debian stretch

I tried to boot my PC and I had this problem fsck from util-linux 2.26.2 /dev/sdb6 contains a file system with errors check forced. /dev/sdb6: Unconnected directory inode 1076721 (/var/tmp/???) ...
1
vote
1answer
44 views

Using shared serial modem

I'm trying to use on Solaris box modem connected to Linux box via serial port. Sharing is made from socat. Server command(linux): socat tcp-l:54321,reuseaddr,fork ...
3
votes
1answer
113 views

How do I start tty from the command-line?

I would like to know what command launches tty from the command-line. I would like to know as I am using Plasma 5 and am fiddling around with my keyboard shortcuts and if I know what launches tty from ...
0
votes
1answer
81 views

Set tty1 as default

I am using vinoth@vinoth:~$ uname -a Linux vinoth 3.2.0-4-amd64 #1 SMP Debian 3.2.63-2+deb7u1 x86_64 GNU/Linux Question is: If I boot my system, I am getting tty7(GUI) by default. How to change ...
0
votes
1answer
953 views

Systemd hangs before TTY during boot in archlinux

systemd of my archlinux hangs since this morning without any error message and before TTY. So, I cannot use Ctrl+Alt+F1. The last thing I see is Reached Target Bluetooth. But everything looks fine ...
0
votes
0answers
30 views

'Unbusy' terminals which will be logged out when TMOUT is reached

I would like auto-logout some terminal sessions with a TMOUT (timeout) configuration, but in that case the users leave a program opened for which the 'unbusy' sign is the ZERO I/O between server and ...
2
votes
1answer
165 views

How can I live-change the TTY rows and columns?

This is a question about Linux running on a Compulab device named Utilite Pro, but I think it is worth the price to ask this question here to get it solved for any platform (if possible). I ...
0
votes
1answer
140 views

How are virtual consoles related to traditional computer terminals?

This is extracted (with some rewording) from Computer terminal and virtual console, which has been closed with a hatnote linking to What is the exact difference between a 'terminal', a ...
0
votes
1answer
133 views

Sudo Apache, with command line ? (not visudo)

I have visudo-edited /etc/sudoers this way: User_Alias APACHE = www-data Cmnd_Alias FIREWALL = /sbin/iptables, /sbin/ifconfig, /sbin/route APACHE ALL = (ALL) NOPASSWD: FIREWALL (To allow php ...
4
votes
1answer
106 views

Why do the terminal attributes look different from outside the terminal?

If I open up a terminal (xfce4-terminal 0.6.3, but I doubt it matters) and I look at what terminal attributes are set (BASH is running in the terminal), $ stty -a speed 38400 baud; rows 24; columns ...
1
vote
1answer
114 views

MacOS terminal ssh input buffer size

I am trying to cut-paste some switch config over an ssh session from my mac. It seems to start mangling it after a set buffer size. Surely cut-paste buffer is large enough, since I can cut-paste just ...
1
vote
4answers
76 views

Different behavior of tty's vs pty's

If I do man bash inside of X, e.g., in xterm or mate-terminal, I get some words underlined. If I do man bash in a virtual terminal, I get those same words colored. Can I get the same coloring in X? ...
0
votes
0answers
38 views

Zenity, how to manage cryptsetup prompt?

With Zenity, I display a progressBar and install/config many stuff on a Linux Mint (Debian) computer. I had to avoid any prompt. But one step prompts Enter a passphrase:, this is cryptsetup ...
0
votes
2answers
163 views

How to automate cryptsetup-luksAddKey with passphrase?

Context: I replaced my passphrase prompted at launch by a keyfile, stored on a USB dongle. My question concerns the step: # cryptsetup luksAddKey /path/to/mykeyfile . I generated my added key ...
1
vote
2answers
115 views

Execute command inside another command

I'm trying to record my tmux session. I've got an alias record-session which executes command from ttygif ttyrec ~/ttygif/files/last-session. As far as I understand ttygif starts new terminal instance ...
0
votes
1answer
75 views

Ctrl+Alt+F2 doesn't switch TTYs on laptop

I'm unable to switch ttys using Ctrl+Alt+F2; nothing happens. Is there some other way to switch? Is there a problem with the keymapping? And how do I fix that? I'm on a US Lenovo X1 Carbon if that ...
1
vote
0answers
65 views

U-Boot: Changing TTY columns and rows for virtual consoles

Having installed GRUB as boot manager allows the operating system (Linux) to boot on specific video mode so the TTY virtual consoles change its columns and rows (width and height). For example, ...
1
vote
1answer
726 views

Sending serial commands with echo vs screen session

I have a small LED matrix controlled by a display driver that accepts serial commands to update the display. I'm successfully controlling it via node with the node serial package, however I'd like to ...
3
votes
1answer
331 views

How to use tty allocation to run GPG through SSH?

I am trying to encrypt and sign a local file using a distant GPG installation via SSH: pv file | ssh -tt [ssh server] gpg -se -r [receipt key] > file.gpg Using the double t option removes the ...
5
votes
2answers
96 views

How do I use the “screen” command if I don't know what the ps or tty the program came from?

I am making a python program that launches on bootup. I would like it so that I can interact with that program via the "screen" command. Then, if I need to talk to the program via a different tty, ...
5
votes
2answers
220 views

Why does password prompt lag slightly after typing the username in tty?

I have this kind of behavior and I don't know how to fix it or even how to search a fix for it since I don't know how would I even call it. Here's what's happening: The first time I boot, when I ...
0
votes
1answer
181 views

debian jessie: how to automount from tty1?

[Note: before you mark this a duplicate: There are several similar-looking questions in this stackexchange (which did not show before creating this question--one seems to get much better matches in ...
0
votes
2answers
1k views

Black screen when I move from X session to tty session

I've the ATI proprietary drivers. When I power on the computer and I do the login all works well, but when I run xorg I can't change tty or exit from xorg because if I try I see only a black screen ...
3
votes
1answer
225 views

Mocking a pseudo tty (pts)

We would like to run some curses based apps in background. These apps use curses and get the current tty port name to be used internally to map log files and others context-terminal associations. ...
0
votes
1answer
198 views

Difference between tty and ttyS and pts and vcsa? [closed]

I can't understand what is difference among tty, ttyS, pts and vcsa? Are they same? when we connect a serial cable to a server which hosts unix-like operating system, which ones of these type of ...
1
vote
1answer
230 views

TTY/Console Wallpaper Arch Linux

How can I set a wallpaper for a TTY/console (also during boot) on Arch Linux like done on OpenSUSE? I think a Kernel recompile is needed?
2
votes
0answers
250 views

Where EOF character is processed when it sent over telnet connection

Lets suppose I am connecting to telnet server, where bash is running. I am executing comand "cat > /tmp/qqq"; typing some contents of a file and finally sending 0x0a 0x04 which meant EOF. The ...
1
vote
1answer
470 views

ttyUSB0 serial port crashes and locks, requires computer reset

I posted this question on stack overflow already but after looking up similar questions I realized this is a much better place for it (and it only got 8 views after 10 hours on a Sunday). If necessary ...
1
vote
1answer
161 views

TTY control characters sent to stdin of sh doesn't work

I tried to develop a remote app that launches sh and resends an incoming data there, and found that some special sequences don't work. So, for testing purposes, I launched on my desktop sh, then ...
0
votes
4answers
426 views

“emacs: standard input is not a tty”

I followed http://unix.stackexchange.com/a/43460/674: after $ locate -i linux | less I type g|$emacs - in less, but nothing is opened in Emacs, and the terminals says: emacs: standard input is not ...
0
votes
0answers
245 views

One single /dev/ttyACM for multiple composite devices (USB-Serial) connected to a hub

When I connect multiple composite devices to a USB hub, and then connect the hub to my laptop(running Fedora 21), I can see only one /dev/ttyACM* file. When I connect these devices directly into ...
1
vote
1answer
74 views

setpgrp causes tty gone

When using setpgrp vi (and other tty programs) work completely different than if setpgrp is not used. Example: perl -MIPC::Open3 -e '$pid= open3("<&STDIN", ">&STDOUT", ...
5
votes
2answers
490 views

Name of the font used in Linux Console (TTY)

What is the name of the font that is used in Linux Console TTY 1-6?
0
votes
0answers
37 views

interceptty error message

I want to listen to a certain device on my linux system. therefore I am using interceptty. When I call: mv ttyO0 ttyO0-orig and then: ./interceptty -o ttyO0.out /dev/ttyO0-orig /dev/ttyO0 & ...
2
votes
2answers
924 views

reading /dev/ttyUSB0

I'm trying to see the output of an accelerometer with Ubuntu (15.04), kernel 3.19. The UART driver is cp210x.ko, and the chip of the accelerometer is MPU6050w. So, when I plug the device, I have this: ...
3
votes
0answers
209 views

Start application using xinit on different tty

I'm using Fedora 21, trying the following: On tty1 is running KDE, just as normal. But to speed up my games/avoid them changing something like gamma, I want to run them on a differnt tty, starting a ...
3
votes
1answer
270 views

Using named pipes to send keypresses to an interactive program

I have a program, mpg123, which has an interactive mode that allows keyboard commands from stdin to do useful things such as control volume. I am trying to start up mpg123 so that it reads commands ...
8
votes
2answers
4k views

How do I permanently change the console TTY font type so it holds after reboot?

I'm running Ubuntu 15.04 64-bit Desktop Edition (A Debian based Linux). I used sudo dpkg-reconfigure console-setup from the command line to change the default console font type to Terminus. ...
3
votes
2answers
193 views

Remove data from the STDIN stream buffer of another TTY session

I encountered a problem the other day while running multiple tty sessions in separate terminal windows. I was running a expensive disk access command and was waiting for it to return. Meanwhile I was ...
0
votes
1answer
374 views

Why does GDM start in TTY2 and TTY7

I have Ubuntu 15.04 and GNOME 3.16 installed. This PPAs are enabled: deb http://ppa.launchpad.net/gnome3-team/gnome3-staging/ubuntu vivid main deb http://ppa.launchpad.net/gnome3-team/gnome3/ubuntu ...
0
votes
1answer
157 views

Linking two hardware serial ports

I have two micro-controllers which are connected to my computer(ubuntu 12.04) through serial-USB cables. One of the controllers (ttyUSB0) is programmed such that it sends data serially and another ...
1
vote
0answers
104 views

Setting custom baud rate on console

Just for aesthetics I would like to have my text on my console be displayed at a lower speed. I've tried using things like screen with custom baud rates of /dev/tty1 but it wouldn't work, input from ...
1
vote
1answer
137 views

tty problem: binary mess instead of “text good data”

I am trying to use a GPS over moxa Uport 1110 usb-to-serial device. The driver of UPort was installed OK, and GPS sends NMEA (text) data. However, when I issue command cat /dev/ttyUSB0 my terminal ...