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Linux Mint on MacBookPro 11,5: force Intel iGPU + power off Radeon dGPU (repro guide)

This is a guide for improving the power consumption on Linux Mint 22.2 by disabling the Radeon GPU and enabling the Intel GPU on a 2015 MacBook Pro 11,5 (Intel Haswell iGPU + AMD Radeon dGPU + Apple GMUX). It is based on the work of Bruno Bierbaumer https://github.com/0xbb/apple_set_os.efi and credits belong to Andreas Heider who originally discovered this hack: https://lists.gnu.org/archive/html/grub-devel/2013-12/msg00442.html

I simply adapted it to work on Linux Mint 22.2.

Goal:

• Boot in a way that exposes/keeps the Intel iGPU usable (some Mac firmware disables or hides it for non-macOS boots).
• Ensure the internal panel (eDP) is driven by i915.

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;
; ========== Cura Start ==========
;
; ---------- Standards and safety ----------
G21                         ; Units in mm
G90                         ; Absolute positioning
M82                         ; Absolute extrusion mode, matches Cura default
M107                        ; Fan off
G92 E0                      ; Reset extruder

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#!/bin/bash
#
# Put me in cron.daily, cron.hourly or cron.d for your own custom schedule

# Running daily? You'll keep 3 daily backups
# Running hourly? You'll keep 3 hourly backups
NUM_BACKUPS_TO_KEEP=3

# Who wants to know when the backup failed, or
# when the binary logs didn't get applied

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Host *.lxc
  User ubuntu
  IdentityFile ~/.ssh/id_rsa
  StrictHostKeyChecking no
  UserKnownHostsFile=/dev/null
  ProxyCommand nc $(grep $(echo %h | sed "s/\.lxc//g") /var/lib/misc/dnsmasq.lxcbr0.leases | awk '{ print $3 }') %p 

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worker_processes  1;

error_log  logs/error.log;


events {
    worker_connections  1024;
}

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#!/usr/bin/env python
# -*- coding: utf-8 -*-
""" File download check """

__author__ = "Clayton Kramer"
__copyright__ = "Copyright 2014"
__credits__ = ["Clayton Kramer"]
__license__ = "GPL"
__version__ = "1.0.1"
__maintainer__ = "Rob Knight"

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// Sourced from http://jsfiddle.net/asgallant/ydNT2/

google.load('visualization', '1', {packages: ['corechart']});
google.setOnLoadCallback(drawChart);

function drawChart() {
    var data = google.visualization.arrayToDataTable([
        ['X', 'Y1', 'Y2'],
        [0, 6, 12],
        [1, 4, 9],

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#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
Quick way to monitor Apache mod_status. Designed for use with Zabbix.
"""

import sys
import urllib2
import argparse

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import string
from random import SystemRandom
from django.db import connections

key_chars = string.ascii_letters
random = SystemRandom()

class adhoc_db(object):
    """Context manager that temporarily adds a database connection.

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#!/bin/bash

#
# template script for generating CentOS container for LXC
#

#
# lxc: linux Container library

# Authors: