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Why

You have a laptop with a 13" screen and 1920x1080 resolution and a 4K external monitor.
You run the laptop at 1x scale.
You run the 4K screen at 2x scale (pixel doubled).
You’re running elementary OS 5.x (Hera) or elementary OS 6 (Odin)

Which means that text scale should be 1x when the 4K monitor is plugged in but it should be larger than that (at least ~1.5x) to be legible on the laptop’s screen. (Yes, the manufacturer of the laptop chose the wrong resolution for the screen. It should have been QHD (2560 × 1440) or at most QHD+ (3200×1800) so that you could run it confortably pixel doubled.)

Anyway, it’s not and you’ve already bought it (and it’s otherwise an excellent laptop) but you don’t want to change the text scale every time you plug it into and unplug it from your external monitor.

Running Linux and Windows on M1 with QEMU

30.11.2020: Updated with the new patchseries and instructions for Windows

02.12.2020: Added tweaks

08.12.2020: Updated with patchseries v4

31.01.2020: Updated with patchseries v6

How to run Windows 10 on ARM or Ubuntu for ARM64 in QEMU on Apple Silicon Mac

Here is easy steps to try Windows 10 on ARM or Ubuntu for ARM64 on your Apple Silicon Mac. Enjoy!

NOTE: that this is current, 10/1/2021 state.

Running Windows 10 on ARM

Install Xcode from App Store or install Command Line Tools on your Mac

	"""Stream a response from the OpenAI completion API."""
	import os
	import re
	import sys
	import time
	import random

	import openai
	openai.api_key = open(os.path.expanduser("~/.openai")).read().strip()

	//
	// DarkModeMasker.swift
	// SwiftUI Demos
	//
	// Created by Morten Just on 1/22/23.
	// https://twitter.com/joshguospace/status/1617101052192649216?s=12

	import SwiftUI
	import Charts

	/*
	* This document is provided to the public domain under the
	* terms of the Creative Commons CC0 public domain license
	*/

	How to boot Arch Linux ARM in QEMU (patched for M1)

	Prerequisites:

	QEMU - patched for M1 processors - patches: https://github.com/utmapp/qemu

	#
	# Get web page screenshot
	#
	# usage:
	# xvfb-run -s "-screen 0 1024x768x24" python getschreenshot.py test.html
	#
	# libs:
	# - pygtk: http://www.pygtk.org/
	# - pywebkitgtk(python-webkit): http://code.google.com/p/pywebkitgtk/
	# - PIL: http://www.pythonware.com/products/pil/

	<touchégg>
	<settings>
	<property name="animation_delay">150</property>
	<property name="action_execute_threshold">20</property>
	<property name="color">909090</property>
	<property name="borderColor">FFFFFF</property>
	</settings>
	<application name="All">
	<gesture type="SWIPE" fingers="3" direction="LEFT">
	<action type="CHANGE_DESKTOP">

	#!/usr/bin/env python3
	# Based on code by Stephan Sokolow
	# MIT-licensed
	# Source: https://gist.github.com/ssokolow/e7c9aae63fb7973e4d64cff969a78ae8
	"""python-xlib example which reacts to changing the active window/title.

	Requires:
	- Python
	- python-xlib


	# Single Command, runs 2 calls to gdbus to get the currently active Window from Gnome 3.x
	# Escaped so you can copy and paste into terminal directly
	gdbus call -e -d org.gnome.Shell -o /org/gnome/Shell -m org.gnome.Shell.Eval global.get_window_actors\(\)[`gdbus call -e -d org.gnome.Shell -o /org/gnome/Shell -m org.gnome.Shell.Eval global.get_window_actors\(\).findIndex\(a\=\>a.meta_window.has_focus\(\)===true\) \| cut -d"'" -f 2`].get_meta_window\(\).get_wm_class\(\) \| cut -d'"' -f 2

	# Unescaped version, will not run
	# Broken down into 2 commands.

	# Call to Gnome to get the array location of the active Application
	gdbus call -e -d org.gnome.Shell -o /org/gnome/Shell -m \