alifa98

run the application like this: DRI_PRIME=1 vlc

now, the vlc runs on second GPU ! :)

alifa98

• Install https://github.com/umlaeute/v4l2loopback (You can install v4l2loopback-dkms by package managers such as pamac and apt )
• Run sudo modprobe -r v4l2loopback && sudo modprobe v4l2loopback devices=1 video_nr=20 card_label="fakecam" exclusive_caps=1 Options
• Create your desired scenes on OBS.
• From "OBS" > "Tools" > "V4L2 video Output" select /dev/video20 (because of video_nr=20 option in command) and click on the start button.
• Go to the application you want to use this camera, and select fakecam as webcam :)

If you have problem with finding fakecam, try command without exclusive_caps=1 option.

alifa98

• Command for list outputs: xrandr
• Command to list available input devices: xinput
• Map movements of x input device to specific output device: xinput map-to-output <Input Device ID> <Output Device Name>

for example: xinput map-to-output 15 DP-1

alifa98

\documentclass[12pt, a4]{article}

%% find this on: https://gist.github.com/alifa98/4fbdd935b2419b520a7a635d5e2da12a
\usepackage{amsthm,amssymb,amsmath,amsfonts}
\usepackage[top=30mm, bottom=30mm, left=25mm, right=30mm]{geometry}
\usepackage{graphicx}
\usepackage{color}
\usepackage{setspace}
\usepackage{titletoc}
\usepackage{tocloft}

alifa98

[ \e[35m\A \e[33m\u\e[90m@\e[31m\h\e[39m:\e[34m\w \e[39m] $

alifa98

Make Time lapse from desktop

command to take 3600 screenshots wit 3s delay. (3 hours)

Save screens in pwd of terminal

for i in {1..3600}; do scrot -d 3 '%Y-%m-%d-%H:%M:%S.png' ; done

convert screenshots to video file

This command convert images in pwd/directory/ to full resolution video (FPS = 30):

alifa98

Pico HTTP Server in C

This is a very simple HTTP server for Unix, using fork(). It's very easy to use

How to use

1. include header httpd.h
2. write your route method, handling requests.
3. call serve_forever("12913") to start serving on port 12913

alifa98

If you don't care about the Welcome Page functionality

1. Install alien, OpenJDK 11, and OpenJFX

    sudo apt install alien openjdk-11-jdk openjfx
   

2. Download SQL Developer >= 19.2
   https://www.oracle.com/tools/downloads/sqldev-downloads.html

   • Download the Linux RPM

alifa98

# Compiled class file
*.class

# Log file
*.log

# BlueJ files
*.ctxt

# Mobile Tools for Java (J2ME)

alifa98

jframe.setLocationRelativeTo(null); //this should be done after setting the size or calling pack(), but before setting it visible, like this:

/*
  frame.pack();
  frame.setLocationRelativeTo(null);
  frame.setVisible(true);
*/