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

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4
votes
2answers
51 views

How to get the real name of the controlling terminal?

How can one get the real name of the controlling terminal (if there is one, else an error) as a pathname? By "real name", I mean not /dev/tty, which cannot be used by other arbitrary processes to ...
3
votes
1answer
644 views

How to open tty or execute some script when the shortcut Ctrl+Alt+F[1-6] doesn't work and X11 is partially frozen but system is still working?

I'm using Ubuntu 10.10 with Gnome on Acer Aspire One netbook. The X11 or just some parts of Gnome like panels and partially windows (details described below) are frozen which doesn't allow to do ...
6
votes
3answers
901 views

Construct a command by putting a string into a tty

I managed to do this echo -n "command" > /dev/tty1 The letters appear, and the cursor moves, but they are "ghosts" - if you hit enter, nothing happens (they are not in stdin). Edit: In the ...
0
votes
0answers
14 views

Kernel loglevel and console manipulation

I want to have two console kernel arguments, one /dev/tty2 for screen and one /dev/ttyAM0 for serial debugging. I can achieve that simply with: console=ttyAM0,115200 console=tty2 I want /dev/ttyAM0 ...
1
vote
1answer
29 views

Stop interface name iteration?

I have a device that comes up as ttyACM0, however every time it is reset it iterates, so next time it will come up as ttyACM1 etc. Where might this lock be located so that I can remove it? I'd like ...
1
vote
1answer
34 views

Detect how much of Unicode my terminal supports, even through screen

Here's the problem: I want to be able to discern if my terminal is capable of decent unicode or not, in order to use some characters or not, much like glances does, that sometimes uses colors and ...
2
votes
1answer
513 views

How can I make the TTY use the appropriate charset?

Note: forked of this per recommendation here. While I got the X keyboard layout right on my own after I fixed that stupid typo, I still can't set the console charset, key map, font map, or whatever ...
0
votes
1answer
48 views

Exit /dev/tty after error message

I run this bash function when a button is pressed, it calls my mobile, however when the call ends or I reject the call, it hangs in /dev/tty and does not return to the main program call.sh ...
1
vote
3answers
3k views

RHEL:Change Screen Resolution of Virtual Console

I am working on a RHEL 6.3 Workstation. And the monitor is a HD AOC Monitor. Problem I am facing is whenever this machine starts up, it runs with maximum screen resolution. It is a big screen and ...
6
votes
5answers
2k views

Enabling Numeric Keypad

I have trouble with the numeric keypad (NumLock keys) being unusable while typing. While I don't think it's GUI specific, this happens both in Gnome and KDE. Sometimes it works in TTY, other times it ...
0
votes
1answer
586 views

rs232 to usb not working

I also asked this question on AskUbuntu but there nobody comments on it I have a konig rs232 serial to usb adapter (no FTDI chip), but when I try to connect to a cisco switch/router (via Putty, ...
1
vote
1answer
979 views

Setting up tty ports on Beaglebone Black with Angstrom linux

I'm using a Beaglebone Black running the Angstrom v2012.12 build that came pre-loaded. I want to be able to connect another device to a serial port via the UART connections on the GPIO headers. The ...
8
votes
2answers
7k views

Poor TTY resolution with nVidia driver

The resolution of the TTY1-6 is poor ~ 640×480 Ubuntu 11.10 | Grub2 | nVidia | NVIDIA GT215 Board I went through the process on this site and after the edit the GRUB menu appears in the correct ...
0
votes
1answer
23 views

RHEL Serial TTY

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Technical_Notes/deployment.html According to this, /etc/inittab has been deprecated. As suggested from this I created a ...
9
votes
4answers
7k views

How can I hook on to one terminal's output from another terminal?

I need to hook onto output of currently running terminal (tty1) from virtual terminal and capture it (running X server). I'm pretty sure such a thing is possible by simpler means than debugging ...
2
votes
1answer
80 views

How can I make a psf font for the console from a otf one?

I want to use the Inconsolata font in the tty console, but I need to generate a psf font for that. I found that there are two tools that should help me otf2bdf and bdf2psf. But everytime I try to use ...
0
votes
0answers
23 views

Serial port locked by random process

I have an issue with trying to open a USB device's serial port with pyserial. It seems that as fast as I connect the device, /dev/ttyACM0 is used by some random process. ModemMana 851 root 8u ...
0
votes
2answers
961 views

Bootloader fails to load linux kernel

I upgraded linux kernel from 2.6.32 to 3.0.7 but now bootloader isn't able to load the kernel image. Specifically, boot procedure freezes after: Starting kernel ... Uncompressing Linux... done, ...
1
vote
1answer
116 views

Is it possible to open a terminal with specified tty/pty

(I am using Ubuntu.) In my understanding tty is just a kind of port. You input something and it should output something. And a terminal (emulator) is a software handle those input and output. ...
1
vote
1answer
29 views

Why does tapping a TTY device only capture every other character?

So, I came across the ttyname function (unistd.h) and had to test it out. #include <unistd.h> #include <stdio.h> int main(void) { printf("%s\n", ttyname(0)); return 0; } On my ...
0
votes
0answers
38 views

linux + what are the messages bad tty under /var/log/messages file

under /var/log/messages I see the following messages "bad tty" what the meaning of these messages? second is it caused because some application that called - owstd ? as we can see from the log? ...
3
votes
1answer
88 views

How do I come by this pty and what can I do with it?

It seems that a simple shell redirect from /dev/ptmx gets me a new pseudo-terminal. $ ls /dev/pts; ls /dev/pts </dev/ptmx 0 1 2 ptmx 0 1 2 3 ptmx It disappears as soon as the process that ...
3
votes
0answers
81 views

How to prevent kernel or any broadcast messages from flooding the TTYs?

Because of some hot-plugging issue, similar to what talked of here, the TTY displays show a continuous stream of messages (which are also logged in the /var/log directory). Every text I key in flows ...
3
votes
3answers
2k views

Sending message from one terminal user to another user

I have a user of name x in tty1 and y in tty2. Now x wants to write some message to y and vice-versa. Now I typed in tty1 terminal write y tty2 It is showing write:write:you have write permission ...
4
votes
2answers
68 views

Save scratch emacs file without access to terminal

I'm trying to save the contents of an Emacs scratch buffer, which I can't access any more due to an inaccessible terminal. On my Linux box I've ssh'ed to a server, and started Emacs. My Linux box has ...
2
votes
0answers
41 views

Determine the owner of the session of a process

I am trying to implement a way to determine which user is owner of some process's session, in a way that's as cross-platform as possible. In Linux I can trace the process's pty by following the link ...
0
votes
1answer
1k views

ERROR: init: ttyS0 (/dev/ttyS0) main process (1612) terminated with status 1

I'm getting the following errors every 10-30 seconds on a virtual Red Hat Enterprise Linux 6.5 2 Server on Amazons EC2. Sep 23 09:57:05 ServerName init: ttyS0 (/dev/ttyS0) main process (1612) ...
7
votes
2answers
548 views

Are there any linux terminals which can handle all key combinations?

I like to use emacs in terminal mode (-nw), but it seems most (all?) terminals can't handle some key combinations - for example, C-<RET> or C-M-%. I know this is because most terminals emulate a ...
1
vote
2answers
59 views

Replace user shell from dash to bash [duplicate]

Everytime I use my terminal, I am always put into the dash shell instead of bash. Is there any way to change this even just for my user only? Tried apt-alternatives but setting the default shell can't ...
0
votes
0answers
19 views

No video on tty after sleep

I have Debian 3.2.63. After I push 'Sleep' button and come back my TTY do not work, only X11. Anybody know how restore video parameters after suspend?
0
votes
0answers
18 views

Reading from /dev/tty [duplicate]

How do I read what is being typed on a different virtual terminal? For example, I was trying to read from /dev/tty0: I did cat < /dev/tty0 and read < /dev/tty0 But nothing is being sent ...
0
votes
1answer
42 views

Make own graphical server [closed]

I had experience to work with framebuffer and found it pretty well to make own graphical applications. But the problem is that framebuffer is too slow. My goal: 1) Make a new tty which will work for ...
1
vote
1answer
46 views

Controlling the terminal while in the middle of a pipe [duplicate]

Say I have 3 commands linked through pipes: A | B | C I would like B to output error messages to stderr and some progress to the terminal. If stderr is the same as the terminal, then that is easy: ...
1
vote
0answers
43 views

Switching to alternate tty device does not give command prompt [closed]

I am trying to install a graphics driver and need to terminate X in order to do so. However, when I switch to an alternate tty device using CTL-ALT-Fx I am met with only a black screen. It appears as ...
1
vote
0answers
32 views

How to avoid session login failure with ecryptfs

After encrypting my /home directory with the migrate-home ecryptfs-utils script I can't log in to an XFCE session on my Manjaro system from the normal login screen. If I try to, the session is ...
1
vote
2answers
38 views

Use/Grab the only keyboard with no user logged locally

I have a raspberry pi running some software (I have the source) that needs user interaction and has a special (USB) keyboard with only 3 keys. The program runs on framebuffer (SDL) and is launched ...
13
votes
3answers
900 views

Start a process on a different tty

After about an hour of Googling this, I can't believe nobody has actually asked this question before... So I've got a script running on TTY1. How do I make that script launch some arbitrary program ...
5
votes
6answers
1k views

Graphics in TTY

Something has come up which demands me to work only in command line. My primary job is programming (mostly in Fortran and Octave) and I need to display plots. As a lame example: I open octave and ...
2
votes
3answers
50 views

(In)significance of [… ] and tty root processes

A colleague of mine assigned me to perform a root-cause analysis of an enterprise security server sometime ago. We knew the problem resided in one of the processes run by root but did not know which ...
0
votes
2answers
71 views

User messages can't be switched on Fedora

A non-root user X cannot message a user Y. This is despite both users having successfully run mesg y. I've tried following advice for similar problems on Ubuntu described in this question. No luck. A ...
0
votes
2answers
166 views

How to switch between tty and xorg session

My xorg session is on tty1 and if I want to issue a command from tty (because I cannot do it from xorg session for some reasons), I press Ctrl+Alt+F2, for example, and type a command. But I cannot ...
0
votes
1answer
144 views

Questions about behaviour of running LiveCD Linux after unmounting a CD-ROM

Could anyone explain what happens in system after unplugging CD-ROM during working with LiveCD session? Suppose that I'm using Ubuntu LiveCD and suddenly by accident the CD-ROM disconnect for a ...
-2
votes
2answers
357 views

Corresponding 7zip command for unzip -p -a

I have a question regarding unzip command in Unix. As of now my Unix command unzip -p -a is able to zip the file which are lesser in size. But if the file size is larger then the command is not able ...
11
votes
6answers
9k views

How to stop cursor from blinking

How do I make the cursor stop blinking when in a TTY? (or anywhere else). BONUS Points for one universal setting that stops the cursor blinking almost everywhere.
4
votes
1answer
67 views

Is it possible to merge two screen sessions chained?

Let us imagine I have only one terminal. To overcome this trouble I use screen, so happy! However, I need to connect to another computer over ssh, to prevent to open several connections I want to run ...
0
votes
0answers
92 views
1
vote
0answers
54 views

Echoing Backspace Characters in the Terminal

I'm working with picocom running inside gnome-terminal. I have local echo switched on inside picocom using the -e option, and when I backspace I can see that caret moves backwards, however the ...
0
votes
0answers
92 views

System not responding and ttyS0 (ttyS0) main process (1627) killed by INT signal

The system is not responding(Unable to do SSH or Telnet, even scheduled cron job is not running) if it runs for more than 5 days. The scenario is "the ssh session is opened and console is opened from ...
1
vote
1answer
11 views

Locating the terminal currently in use

I need to write a script to test if im using the correct terminal and then print a message This is what i have so far if(???? == dev/pts/1) echo Access Granted. Welcome. endif I dont know how to ...
2
votes
1answer
72 views

Replay a screen log file incrementally

I have run some commands in gnu screen and used the C-a H command to record the output to a screenlog.0 file. However now I want to view it. There are loads of terminal escape sequences, so just ...