H.F. JiangXL

PCI Passthrough

Hardware:

Mainboard ASUS PRIME Z390-A Z390
ASUS Dual-GTX1650-O4G
Intel i9 9900
32GB Ram
NEC Corporation uPD720200 USB 3.0 Host Controller
Samsung Electronics Co Ltd NVMe SSD Controller SM981/PM981/PM983 (1 TB)

The code for this tutorial is here

Opencv provides are useful, but limited, method of building a GUI. A much more complete system could be acheived using pyqt. The question is, how do we display images. There are quite a few possible routes but perhaps the easiest is to use QLabel since it has a setPixmap function. Below is some code that creates two labels. It then creates a grey pixmap and displays it one of the labels. code: staticLabel1.py

from PyQt5.QtWidgets import QWidget, QApplication, QLabel, QVBoxLayout
from PyQt5.QtGui import QPixmap, QColor
import sys

iPhone Tethering to Raspberry Pi

Instruction

On RPi

sudo apt-get install usbmuxd
connect iPhone

On iPhone

Trust

Pixelbook or Pixel Slate Setup

Partly updated June 2023

General caution: Chrome OS is a secure OS by design, but this has at least one key consequence. If you change your Google account password, you will still be required to enter the old password the next time you access each Chrome OS device. Devices are encrypted with that password, so the OS needs to decrypt using the old password then re-encrypt using the new one. If you forget your old password you will lose access to your Chrome OS device data. As always, make sure you keep backups up to date.

Fast User Switching

If you have multiple Chrome OS accounts (Say, work and play), you can quickly sitch between them without logging out:

Installing NFS inside LXC Container on Proxmox 5.1

Host Setup:

Create LXC Container as usual, but do not start it yet.

# Install NFS-Kernel on Host
apt install nfs-kernel-server

X11vnc Systemd Unit File

This Systemd unit file starts X11VNC on boot

Set VNC password: sudo x11vnc -storepasswd [YOUR VNC PASSWORD] /etc/x11vnc.passwd
Install Systemd Unit File

sudo cp [path to]/vnc.service /etc/systemd/system/
sudo systemctl daemon-reload
sudo systemctl enable vnc.service

https://github.com/aancel/admin/wiki/VirtualGL-on-Ubuntu

https://virtualgl.org/About/Introduction

https://www.turbovnc.org

VirtualGL

When you use ssh with X forwarding, you might have noticed that you cannot execute programs that require 3D acceleration. That's where VirtualGL comes into play.

	<!--XSL style sheet to convert EESCHEMA XML Partlist Format to grouped CSV BOM Format
	Copyright (C) 2014, Wolf Walter.
	Copyright (C) 2013, Stefan Helmert.
	Copyright (C) 2018, Kicad developers.
	Copyright (C) 2019, arturo182.
	GPL v2.

	Functionality:
	Generation of JLCPCB PCBA compatible BOM

	#!/bin/sh

	# Author : Wang Poh Peng
	# Description : Use FFMPEG to download videos into mkv or mp4 format

	RED='\033[1;31m'
	NC='\033[0m' # No Color
	GREEN='\033[0;32m'
	CYAN='\033[0;36m'

	#EXTINF:-1,北京卫视4K
	rtp://239.3.1.22:8001

	#EXTINF:-1,云南卫视
	rtp://239.3.1.26:8108

	#EXTINF:-1,四川卫视
	rtp://239.3.1.29:8288

	#EXTINF:-1,广西卫视