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Getting Started With ACPI
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Disabling laptop dGPUs
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Embedded Controller
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Prebuilt
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SSDTTime
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Manual
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CPU Power Management
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Prebuilt
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SSDTTime
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Manual
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AWAC vs RTC
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Prebuilt
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NVRAM PMC
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IRQ Fix
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GPU Spoof
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Fixing SMBus Support
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Troubleshooting
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<a href=".." >Embedded Controller</a>
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<html><head></head><body><blockquote>
<p><em>Last modified: Thu Jun 18 2020 15:35:29 GMT+0000 (Coordinated Universal Time)</em></p>
</blockquote>
<h1 id="fixing-embedded-controller-ssdt-ecusbx"><a name="fixing-embedded-controller-ssdt-ecusbx" class="plugin-anchor" href="#fixing-embedded-controller-ssdt-ecusbx"><i class="fa fa-link" aria-hidden="true"></i></a>Fixing Embedded Controller (SSDT-EC/USBX)</h1>
<ul>
<li><a href="#fixing-embedded-controller-ssdt-ecusbx">Fixing Embedded Controller (SSDT-EC/USBX)</a><ul>
<li><a href="#what-this-ssdt-does">What this SSDT does</a></li>
<li><a href="#methods-to-make-this-ssdt">Methods to make this SSDT</a></li>
</ul>
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<h2 id="what-this-ssdt-does"><a name="what-this-ssdt-does" class="plugin-anchor" href="#what-this-ssdt-does"><i class="fa fa-link" aria-hidden="true"></i></a>What this SSDT does</h2>
<p>The purpose of SSDT-EC/UBX is a couple things:</p>
<ul>
<li>On desktops, the EC(or better known as the embedded controller) isn&apos;t compatible with AppleACPIEC driver, to get around this we disable this device when running macOS</li>
<li>AppleBusPowerController will look for a device named <code>EC</code>, so we will want to create a fake device for this kext to load onto<ul>
<li>AppleBusPowerController also requires a USBX device to supply USB power properties for Skylake and newer, so we will bundle this device in with the EC fix</li>
</ul>
</li>
<li>On laptops, the EC is used for hotkeys and battery so disabling this isn&apos;t all too ideal. Problem is our EC&apos;s name isn&apos;t compatible, so we will create a simple &quot;fake&quot; EC device that will satisfy Apple</li>
</ul>
<p>So TL;DR:</p>
<ul>
<li>EC is embedded controller</li>
<li>Desktops will want real EC off, and a fake EC created</li>
<li>Laptops will just want an additional fake EC present</li>
<li>Skylake and newer devices will want USBX as well</li>
</ul>
<h2 id="methods-to-make-this-ssdt"><a name="methods-to-make-this-ssdt" class="plugin-anchor" href="#methods-to-make-this-ssdt"><i class="fa fa-link" aria-hidden="true"></i></a>Methods to make this SSDT</h2>
<p>For the EC fix, there are 3 methods you can choose from:</p>
<ul>
<li><a href="ec-methods/prebuilt.html">Prebuilt</a><ul>
<li>The prebuilt for desktops are very bloated. It&apos;s recommended to use the two methods below.</li>
<li>The Laptop prebuilts are easily usable.</li>
</ul>
</li>
<li><a href="ec-methods/ssdttime.html">SSDTTime</a><ul>
<li>Note this method does not support <strong>laptops</strong>, <strong>servers</strong> or <strong>HEDT systems</strong></li>
</ul>
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<li><a href="ec-methods/manual.html">Manual</a></li>
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