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<li class="chapter " data-level="1.1" data-path="../">
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<a href="../">
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Getting Started With ACPI
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SSDTs: Easy Way
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SSDTs: Long Way
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Dumping the DSDT
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</a>
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Decompiling and Compiling
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<a href="../Desktops/desktop-ec.html">
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Embedded Controllers
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</a>
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</li>
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<li class="chapter " data-level="3.2" data-path="../Desktops/desktop-disable.html">
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<a href="../Desktops/desktop-disable.html">
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Disabling desktop dGPUs
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</a>
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Embedded Controllers
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</a>
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<a href="backlight.html">
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Backlight PNLF
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</a>
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<li class="chapter " data-level="4.3" data-path="trackpad.html">
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Trackpad GPI0
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Disabling laptop dGPUs
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</a>
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<li class="header">Universal</li>
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Plugin type
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AWAC vs RTC
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</a>
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</li>
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<li class="chapter " data-level="5.3" data-path="../Universal/nvram.html">
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<a href="../Universal/nvram.html">
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NVRAM PMC
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</a>
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<li class="chapter " data-level="5.4" data-path="../Universal/irq.html">
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<a href="../Universal/irq.html">
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IRQ Fix
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</a>
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<li class="chapter " data-level="5.5" data-path="../Universal/spoof.html">
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<a href="../Universal/spoof.html">
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GPU Spoof
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</a>
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<li class="chapter " data-level="5.6" data-path="../Universal/smbus.html">
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<a href="../Universal/smbus.html">
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Fixing SMBus Support
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</a>
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</li>
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<li class="header">Cleanup</li>
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<li class="chapter " data-level="6.1" data-path="../cleanup.html">
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<a href="../cleanup.html">
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Cleanup
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</li>
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<li class="header">Misc</li>
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Troubleshooting
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<li class="chapter " data-level="7.2" data-path="../CONTRIBUTING.html">
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Contributing
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Published with GitBook
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<!-- Title -->
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<h1>
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<i class="fa fa-circle-o-notch fa-spin"></i>
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<a href=".." >Backlight PNLF</a>
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</h1>
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</div>
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<section class="normal markdown-section">
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<blockquote>
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<p><em>Last modified: Sat Apr 18 2020 20:24:05 GMT+0000 (Coordinated Universal Time)</em></p>
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</blockquote>
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<h1 id="fixing-backlight"><a name="fixing-backlight" class="plugin-anchor" href="#fixing-backlight"><i class="fa fa-link" aria-hidden="true"></i></a>Fixing Backlight</h1>
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<p>So what this SSDT does is create a PNLF device for macOS to play with, specifically one with a hardware ID of <code>APP0002</code>. WhateverGreen will handle the rest of the work</p>
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<p>No configuration required for most, just drop the prebuilt file into your EFI:</p>
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<ul>
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<li><a href="https://github.com/dortania/Getting-Started-With-ACPI/blob/master/extra-files/SSDT-PNLF.aml" target="_blank">SSDT-PNLF</a><ul>
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<li>For most users</li>
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</ul>
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</li>
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<li><a href="https://i.applelife.ru/2019/12/463488_SSDT-PNLFCFL.aml.zip" target="_blank">SSDT-PNLFCFL</a><ul>
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<li>For Coffee Lake and newer</li>
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</ul>
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</li>
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</ul>
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<p>Note: there are some rare cases where the iGPU is called <code>GPU0</code> or <code>VID</code>in the DSDT, you can double check by searching for <code>PCI0.GFX0</code>, <code>PCI0.VID</code> and <code>PCI0.GPU0</code>. Whichever shows up is your device</p>
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<p>If Windows has been installed on the device, you can also do the following:</p>
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<pre><code class="lang-text">Device Manager -> Display Adapters -> Properties -> Details > BIOS device name
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</code></pre>
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<ul>
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<li>Note some GPUs may be hiding under "BIOS device name"</li>
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</ul>
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<p><img src="../images/Desktops/nvidia.png" alt="Credit to 1Revenger1 for the image"></p>
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