Cees-Jan Kiewiet WyriHaximus

Disabling USB Auto-Suspend on Ubuntu

These days Linux supports a lot of devices. However, occasionally you will find a device that works but only for a while, requiring a reboot to work again. This is often due to the device itself not behaving according to the USB standard, and that's more often than not caused by misbehaving USB suspend.

The proper way of fixing this would be either a workaround in the driver or, God forbid, a fix in the device's firmware. But quite often nobody does anything, so what's left is to do the improper. And the easiest improper fix is to disable USB autosuspend.

For the command line, just add usbcore.autosuspend=-1 to GRUB_CMDLINE_LINUX_DEFAULT:

sudo sed -i 's/GRUB_CMDLINE_LINUX_DEFAULT="[a-z ]*/& usbcore.autosuspend=-1/' /etc/default/grub

UniFi AP Buyers Guide

(updated March 2025)

The APs in this list are ordered from highest to lowest performance. However, unless you have an insane amount of devices you likely do NOT need to buy the most expensive, highest performance AP. You can also check Ebay for deals, especially on older equipment. In terms of best price-to-performance, the U6 Pro/Mesh/InWall series is the sweet spot in my opinion and is the best choice for most deployments.

All APs in this list support both wired backhaul and mesh modes. However, wired connections are strongly recommended for better performance and reliability.

Number of spatial streams are listed in order of 2.4GHz, 5GHz, 6GHz.

Good Choices:

Summary

Setup RPi Zero W as a kiosk

Step

write Raspbian Lite image to a SD card
enable ssh

touch /boot/ssh

setup WiFi

Setup Windows Subsystem 2 for Linux

Windows Subsystem 2 for Linux, Hyper, ZSH + Oh My Zsh + Powerlevel9k + plugins, FNM + VSCode (+ext) and Nerd Font

To setup native Linux, see this gist

Requirements

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

Ctrl-Key: ^[
Octal: \033
Unicode: \u001b
Hexadecimal: \x1B
Decimal: 27

	set -l data_status (curl -s https://iceportal.de/api1/rs/status)
	set -l data_trip (curl -s https://iceportal.de/api1/rs/tripInfo/trip)
	# next stop
	echo  (echo $data_trip \| jq -r '([ .trip.stops[] \| select(.info.passed==false) ]
	\| first).station.name')
	# train number
	echo  (echo $data_trip \| jq -r '"\(.trip.trainType)-\(.trip.vzn)"')
	# speed
	echo speed (echo $data_status \| jq -r '"\(.speed) km/h"')

	Ik schrijf u in uw hoedanigheid als gegevensbeschermingsfunctionaris voor uw bedrijf.

	Door een situatie waarin uw bedrijf mij zonder expliciete toestemming heeft aangemeld voor solliciaties bij bedrijven die geen relevantie houden tot mijn profiel heb ik zorgen over de verwerking van data binnen uw bedrijf.

	Ik zou graag willen dat u van meet af aan weet dat ik binnen een maand antwoord verwacht op mijn verzoek, zoals vereist krachtens artikel 12, bij gebreke waarvan ik mijn verzoek zal doorzenden met een klachtbrief aan de bevoegde autoriteiten.

	Gelieve het volgende te adviseren:

	1. Bevestig mij of mijn persoonlijke gegevens worden verwerkt. Als dit het geval is, geef me dan de categorieën persoonlijke gegevens die u over mij hebt in uw bestanden en databases.

	///$(which true);FLAGS="-g -Wall -Wextra --std=c17 -O1 -fsanitize=address,undefined";THIS_FILE="$(cd "$(dirname "$0")"; pwd -P)/$(basename "$0")";OUT_FILE="/tmp/build-cache/$THIS_FILE";mkdir -p "$(dirname "$OUT_FILE")";test "$THIS_FILE" -ot "$OUT_FILE" \|\| $(which clang \|\| which gcc) $FLAGS "$THIS_FILE" -o "$OUT_FILE" \|\| exit $?;exec bash -c "exec -a \"$0\" \"$OUT_FILE\" $([ $# -eq 0 ] \|\| printf ' "%s"' "$@")"
	#include <stdio.h>

	int main() {
	printf("Hello world!\n");
	return 0;
	}

	DUMP
	// pod-name name of the postgres pod
	// postgres-user database user that is able to access the database
	// database-name name of the database
	kubectl exec [pod-name] -- bash -c "pg_dump -U [postgres-user] [database-name]" > database.sql

	RESTORE
	// pod-name name of the postgres pod
	// postgres-user database user that is able to access the database
	// database-name name of the database

	# put the following in a udev rule file
	# for example /etc/udev/rules.d/99-tb16-dock.rule
	ACTION=="add", SUBSYSTEM=="thunderbolt", ATTR{device_name}=="Dell Thunderbolt Dock", RUN+="/bin/systemctl --no-block start configure-tb16-dock.service"