abclution

preface: Posting these online since it sounds like these notes are somewhat interesting based on a few folks I've shared with. These are semi-rough notes that I basically wrote for myself in case I ever needed to revisit this fix, so keep that in mind.

I recently bought an LG ULTRAGEAR monitor secondhand off of a coworker. I really love it and it's been great so far, but I ran into some minor issues with it in Linux. It works great on both Mac and Windows, but on Linux it displays just a black panel until I use the second monitor to go in and reduce the refresh rate down to 60 Hz.

This has worked decent so far but there's some issues:

It doesn't work while linux is booting up. The motherboards boot sequence is visible just fine, but as soon as control is handed over to Linux and I'd normally see a splash screen while I'm waiting for my login window, I see nothing.
It doesn't work on the login screen. This would be fine if login consistently worked on my second screen, but I need to manually switch

	#! /usr/bin/env python2
	# Requires: PIL, colormath
	#
	# Improved algorithm now automatically crops the image and uses much
	# better color matching

	from PIL import Image, ImageChops
	from colormath.color_conversions import convert_color
	from colormath.color_objects import LabColor
	from colormath.color_objects import sRGBColor as RGBColor

	# === Optimized my.cnf configuration for MySQL/MariaDB (on Ubuntu, CentOS, Almalinux etc. servers) ===
	#
	# by Fotis Evangelou, developer of Engintron (engintron.com)
	#
	# ~ Updated September 2024 ~
	#
	#
	# The settings provided below are a starting point for a 8-16 GB RAM server with 4-8 CPU cores.
	# If you have different resources available you should adjust accordingly to save CPU, RAM & disk I/O usage.
	#

	#!/usr/bin/python3
	"""
	Usage:
	plasmasetconfig # List all widget namespaces
	plasmasetconfig org.kde.plasma.digitalclock # List all config groups+keys
	plasmasetconfig org.kde.plasma.digitalclock Appearance showSeconds true
	Install:
	chmod +x ~/Downloads/plasmasetconfig.py
	sudo cp ~/Downloads/plasmasetconfig.py /usr/local/bin/plasmasetconfig
	Uninstall:

	/ip address
	add address=192.168.0.1/24 network=192.168.0.0 broadcast=192.168.0.255 interface=Local
	add address=192.168.1.2/24 network=192.168.1.0 broadcast=192.168.1.255 interface=WAN1
	add address=192.168.2.2/24 network=192.168.2.0 broadcast=192.168.2.255 interface=WAN2
	/ip dns set allow-remote-requests=yes cache-max-ttl=1w cache-size=5000KiB max-udp-packet-size=512 servers=221.132.112.8,8.8.8.8
	/ip firewall mangle
	add chain=input in-interface=WAN1 action=mark-connection new-connection-mark=WAN1_conn
	add chain=input in-interface=WAN2 action=mark-connection new-connection-mark=WAN2_conn
	add chain=output connection-mark=WAN1_conn action=mark-routing new-routing-mark=to_WAN1
	add chain=output connection-mark=WAN2_conn action=mark-routing new-routing-mark=to_WAN2

	starting pid 1017, tty '/dev/ttyS0': '/usr/bin/login.sh'
	(none) login: ROM: Use nor flash.
	ERR: Param type error
	ERR: Param type error
	R

	U-Boot 2010.06-dirty (Dec 02 2020 - 10:12:00)

	DRAM: 64 MiB
	SF: Got idcode 20 70 18 20 70

	# get rsync
	❯ git clone [email protected]:WayneD/rsync.git
	❯ git checkout v3.2.3 # recent tag

	# get musl cross toolchain from https://musl.cc/
	❯ wget https://musl.cc/arm-linux-musleabihf-cross.tgz
	❯ tar zxvf arm-linux-musleabihf-cross.tgz

	# now add the toolchain to path and configure + make
	❯ export PATH=$PATH:$PWD/arm-linux-musleabihf-cross/bin

	#!/usr/bin/env sh

	# Script for running powertop --auto-tune but disable optimizations for some devices
	#
	# Based on solution from https://askubuntu.com/a/1026527/53903

	powertop --auto-tune

	devices=(
	"0001:abcd" # My important device

	Ubuntu 22.04, AMD Kabini APU - switch to amdgpu kernel driver.
	1. Check current driver:
	$ lspci -k \| grep -A 3 -E "(VGA\|3D)"
	00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Kabini [Radeon HD 8400 / R3 Series]
	Subsystem: Samsung Electronics Co Ltd Kabini [Radeon HD 8400 / R3 Series]
	Kernel driver in use: radeon
	Kernel modules: radeon, amdgpu
	---
	if "Kernel driver in use: radeon" - you need to switch.
	2. $ sudo featherpad /etc/default/grub

	#!/bin/bash
	#
	# Re-encode a video to a target size in MB.
	# Example:
	# ./this_script.sh video.mp4 15

	T_SIZE="$2" # target size in MB
	T_FILE="${1%.*}-$2MB.mp4" # filename out

	# Original duration in seconds