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Questions tagged [signal]

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Questions about signals, a kind of interprocess communication.

75 questions
Newest Active Bountied Unanswered
0 votes
0 answers
230 views

How can I have two separate Signal icons (items) in the Ubuntu dock on Ubuntu 24.04 LTS with Wayland (debian-based Signal app installed with PPA/repository signal-desktop.sources). In X11 it worked ...
Filbuntu's user avatar
  • 14k
0 votes
0 answers
43 views

Recently (Oct 2025) Ubuntu 24.04 LTS has started to lock up - mouse and keyboard not functional and requires a power shutdown. This appears to be caused by the Brave browser and has been reported by ...
derek's user avatar
  • 19
-1 votes
3 answers
2k views

I have a Chromebook, and just enabled Linux. I'd like to install Signal-Desktop, but after following the instructions on the Signal site, I get this error message "Unable to locate package signal-...
Richard Evans's user avatar
  • 19
0 votes
1 answer
226 views

I'd like to override the Alt-F4 keyboard shortcut to send a SIGKILL instead of whatever is sent currently. I have a few programs which capture the current signal and do nothing, with no option to re-...
tuskiomi's user avatar
  • 93
1 vote
0 answers
105 views

I am trying to install Signal-CLI, a command-line interface for the Signal messenger app by cloning its repository and building it using Gradle. Here are the steps I followed: Cloned the repository: ...
Richard's user avatar
  • 11
4 votes
1 answer
383 views

In my Ubuntu application, I wanted to perform certain finalization for my application before the system is being shutdown. For that, I need to identify the shutdown event in my application. From what ...
Vipul Gupta's user avatar
  • 385
5 votes
2 answers
973 views

I would like to know which signal is sent to the kernel when I unplug my laptop. I need this information to make a program to switch my power mode automatically. I am currently on Ubuntu 23.10.
Stanislas Martin's user avatar
  • 51
5 votes
2 answers
745 views

I can change my current workspace in various ways, e.g. by clicking on some switcher widget, with some key combination, with a command in a terminal. Is there a way to detect that the workspace has ...
Rodrigo's user avatar
  • 163
0 votes
0 answers
88 views

Its connect but very week signal router is on desktop still week other device is work properly
Tariku Assefa Ume's user avatar
  • 1
1 vote
0 answers
565 views

Upon installing the latest version of Signal (6.16.0) the old and in-operable version (5.54.0) persists. Normally with other applications, the new version is installed and the old version is ...
O. Kindle aka Owen Fisher's user avatar
  • 11
1 vote
1 answer
568 views

I'm using /usr/bin/time to report information about a set of benchmarks I'm running. The interesting data points are runtime, memory usage and the exit status. This works fine except when the ...
Stefan's user avatar
  • 13
4 votes
2 answers
5k views

i don't remember how i installed Signal desktop. i think i did it with ubuntu software. the version is v1.39.6 so i removed it with all the ways i know as if installed w/snap but it says here that ...
Johnny Bravo's user avatar
  • 51
0 votes
0 answers
97 views

I am a new user at Ubuntu and just today's morning I installed in on my computer dual boot with windows 10 when ever I try to open my pc the monitor works fine with windows 10 but when I boot uhuntu ...
Dev Rudra's user avatar
  • 1
0 votes
0 answers
165 views

EDIT: Since my question was not clear let me reformulate: how can one find what signals a process handles? From this answer: https://unix.stackexchange.com/questions/85364/how-can-i-check-what-signals-...
Emile Papillon-Corbeil's user avatar
  • 137
1 vote
1 answer
3k views

In the postgresql log file, I found message: startup process (PID 1886772) was terminated by signal 9: Killed Although upon restarting service, postgresql database starts functioning normally. ...
sanjeev saunkhla's user avatar
  • 11

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