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Getting Started With ACPI
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Dumping the DSDT
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Decompiling and Compiling
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Disabling desktop dGPUs
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Backlight PNLF
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Trackpad GPI0
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Disabling laptop dGPUs
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Embedded Controller
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Plugin type
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AWAC vs RTC
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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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Cleanup
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<li class="header">Misc</li>
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Troubleshooting
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Contributing
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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="." >Troubleshooting</a>
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<blockquote>
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<p><em>Last modified: Fri May 01 2020 17:13:02 GMT+0000 (Coordinated Universal Time)</em></p>
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</blockquote>
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<h1 id="troubleshooting"><a name="troubleshooting" class="plugin-anchor" href="#troubleshooting"><i class="fa fa-link" aria-hidden="true"></i></a>Troubleshooting</h1>
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<ul>
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<li><a href="troubleshooting.html#fixing-ssdttime-could-not-locate-or-download-iasl">Fixing SSDTTime: <code>Could not locate or download iasl!</code></a></li>
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<li><a href="troubleshooting.html#cant-run-acpidumpefi-from-opencore">Can't run <code>acpidump.efi</code></a></li>
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<li><a href="troubleshooting.html#iasl-warning--unresolved">iASL warning, # unresolved</a></li>
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<li><a href="troubleshooting.html#decompiling-error">Decompiling Error</a></li>
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<li><a href="troubleshooting.html#invalid-character-0x3d-expecting-asl-keyword-or-name">Invalid character (0x3D), expecting ASL keyword or name</a></li>
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<li><a href="troubleshooting.html#syntax-error-unexpected-parseopone-expecting-">Syntax error, unexpected PARSEOP_ONE, expecting '('</a></li>
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</ul>
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<h2 id="fixing-ssdttime-could-not-locate-or-download-iasl"><a name="fixing-ssdttime-could-not-locate-or-download-iasl" class="plugin-anchor" href="#fixing-ssdttime-could-not-locate-or-download-iasl"><i class="fa fa-link" aria-hidden="true"></i></a>Fixing SSDTTime: <code>Could not locate or download iasl!</code></h2>
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<p>This is usually due to an outdated version of Python, try either updating Python or add iasl to the scripts folder for SSDTTime:</p>
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<ul>
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<li><a href="https://bitbucket.org/RehabMan/acpica/downloads/iasl.zip" target="_blank">iasl macOS version</a></li>
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<li><a href="https://acpica.org/sites/acpica/files/iasl-win-20180105.zip" target="_blank">iasl Windows version</a></li>
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<li><a href="http://amdosx.kellynet.nl/iasl.zip" target="_blank">iasl Linux version</a></li>
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</ul>
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<h2 id="cant-run-acpidumpefi-from-opencore"><a name="cant-run-acpidumpefi-from-opencore" class="plugin-anchor" href="#cant-run-acpidumpefi-from-opencore"><i class="fa fa-link" aria-hidden="true"></i></a>Can't run <code>acpidump.efi</code> from OpenCore</h2>
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<p>Grab <a href="https://github.com/acidanthera/OpenCorePkg/releases" target="_blank">OpenShell</a> and add it to EFI/OC/Tools and config.plist -> Misc -> Tools.</p>
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<p>Next, call upon OpenCore shell and enter the following:</p>
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<pre><code class="lang-text">shell> fs0: //replace with proper drive
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fs0:\> dir //to verify this is the right directory
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Directory of fs0:\
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01/01/01 3:30p EFI
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fs0:\> cd EFI\OC\Tools //note that its with forward slashes
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fs0:\EFI\OC\Tools> acpidump.efi -b -n DSDT -z
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</code></pre>
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<h2 id="iasl-warning--unresolved"><a name="iasl-warning--unresolved" class="plugin-anchor" href="#iasl-warning--unresolved"><i class="fa fa-link" aria-hidden="true"></i></a>iASL warning, # unresolved</h2>
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<p>If you try to decompile your DSDT and get an error similar to this:</p>
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<pre><code class="lang-text">iASL Warning: There were 19 external control methods found during disassembly, but only 0 were resolved (19 unresolved)
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</code></pre>
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<p>This happens when one ACPI table requires the rest for proper referencing, it does not accept the creation of DSDTs as we're only using it for creating a select few SSDTs. For those who are worried, you can run the following:</p>
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<pre><code class="lang-text">iasl * [insert all ACPI files here]
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</code></pre>
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<h2 id="decompiling-error"><a name="decompiling-error" class="plugin-anchor" href="#decompiling-error"><i class="fa fa-link" aria-hidden="true"></i></a>Decompiling Error</h2>
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<p><img src="images/troubleshooting-md/decompile-error.png" alt=""></p>
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<pre><code class="lang-text">Loading Acpi table from file iASLAwjHrs.aml
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Acpi table [DSDT] successfully installed and loaded
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Pass 1 parse of [DSDT]
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</code></pre>
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<p>This is a common error on DSDTs that have methods that aren't supported by maciASL, the easiest way is to delete maciASL and make sure you grab it from Acidanthera's repo: <a href="https://github.com/acidanthera/MaciASL/releases" target="_blank">maciASL</a></p>
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<h2 id="invalid-character-0x3d-expecting-asl-keyword-or-name"><a name="invalid-character-0x3d-expecting-asl-keyword-or-name" class="plugin-anchor" href="#invalid-character-0x3d-expecting-asl-keyword-or-name"><i class="fa fa-link" aria-hidden="true"></i></a>Invalid character (0x3D), expecting ASL keyword or name</h2>
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<p><img src="images/troubleshooting-md/invalid-parse.png" alt=""></p>
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<p>Similar to the above error, you're running an outdated copy of maciASL. Make sure you're using the latest from Acidanthera's repo: <a href="https://github.com/acidanthera/MaciASL/releases" target="_blank">maciASL</a></p>
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<h2 id="syntax-error-unexpected-parseopone-expecting-"><a name="syntax-error-unexpected-parseopone-expecting-" class="plugin-anchor" href="#syntax-error-unexpected-parseopone-expecting-"><i class="fa fa-link" aria-hidden="true"></i></a>Syntax error, unexpected PARSEOP_ONE, expecting '('</h2>
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<p><img src="images/troubleshooting-md/invalid-parse.png" alt=""></p>
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<p>Similar to the above 2 errors, you're running an outdated copy of maciASL. Make sure you're using the latest from Acidanthera's repo: <a href="https://github.com/acidanthera/MaciASL/releases" target="_blank">maciASL</a></p>
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