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Getting Started With ACPI
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Choosing the SSDTs
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How to create SSDTs
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SSDTs: Prebuilt
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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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Decompiling and Compiling
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Prebuilt
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Manual
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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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Manual
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Prebuilt
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Manual
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USB RHUB
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Manual
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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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Contributing
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<p><em>Last modified: Thu Jun 18 2020 15:35:29 GMT+0000 (Coordinated Universal Time)</em></p>
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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>
<ul>
<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>
<li><a href="troubleshooting.html#cant-run-acpidumpefi-from-opencore">Can&apos;t run <code>acpidump.efi</code></a></li>
<li><a href="troubleshooting.html#iasl-warning--unresolved">iASL warning, # unresolved</a></li>
<li><a href="troubleshooting.html#decompiling-error">Decompiling Error</a></li>
<li><a href="troubleshooting.html#invalid-character-0x3d-expecting-asl-keyword-or-name">Invalid character (0x3D), expecting ASL keyword or name</a></li>
<li><a href="troubleshooting.html#syntax-error-unexpected-parseopone-expecting-">Syntax error, unexpected PARSEOP_ONE, expecting &apos;(&apos;</a></li>
</ul>
<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>
<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>
<ul>
<li><a href="https://bitbucket.org/RehabMan/acpica/downloads/iasl.zip" target="_blank">iasl macOS version</a></li>
<li><a href="https://acpica.org/downloads/binary-tools" target="_blank">iasl Windows version</a></li>
<li><a href="http://amdosx.kellynet.nl/iasl.zip" target="_blank">iasl Linux version</a></li>
</ul>
<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&apos;t run <code>acpidump.efi</code> from OpenCore</h2>
<p>Grab <a href="https://github.com/acidanthera/OpenCorePkg/releases" target="_blank">OpenShell</a> and add it to EFI/OC/Tools and config.plist -&gt; Misc -&gt; Tools.</p>
<p>Next, call upon OpenCore shell and enter the following:</p>
<pre><code class="lang-text">shell&gt; fs0: //replace with proper drive
fs0:\&gt; dir //to verify this is the right directory
Directory of fs0:\
01/01/01 3:30p EFI
fs0:\&gt; cd EFI\OC\Tools //note that its with forward slashes
fs0:\EFI\OC\Tools&gt; acpidump.efi -b -n DSDT -z
</code></pre>
<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>
<p>If you try to decompile your DSDT and get an error similar to this:</p>
<pre><code class="lang-text">iASL Warning: There were 19 external control methods found during disassembly, but only 0 were resolved (19 unresolved)
</code></pre>
<p>This happens when one ACPI table requires the rest for proper referencing, it does not accept the creation of DSDTs as we&apos;re only using it for creating a select few SSDTs. For those who are worried, you can run the following:</p>
<pre><code class="lang-text">iasl * [insert all ACPI files here]
</code></pre>
<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>
<p><img src="images/troubleshooting-md/decompile-error.png" alt=""></p>
<pre><code class="lang-text">Loading Acpi table from file iASLAwjHrs.aml
Acpi table [DSDT] successfully installed and loaded
Pass 1 parse of [DSDT]
</code></pre>
<p>This is a common error on DSDTs that have methods that aren&apos;t supported by maciASL, the easiest way is to delete maciASL and make sure you grab it from Acidanthera&apos;s repo: <a href="https://github.com/acidanthera/MaciASL/releases" target="_blank">maciASL</a></p>
<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>
<p><img src="images/troubleshooting-md/invalid-parse.png" alt=""></p>
<p>Similar to the above error, you&apos;re running an outdated copy of maciASL. Make sure you&apos;re using the latest from Acidanthera&apos;s repo: <a href="https://github.com/acidanthera/MaciASL/releases" target="_blank">maciASL</a></p>
<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 &apos;(&apos;</h2>
<p><img src="images/troubleshooting-md/invalid-parse.png" alt=""></p>
<p>Similar to the above 2 errors, you&apos;re running an outdated copy of maciASL. Make sure you&apos;re using the latest from Acidanthera&apos;s repo: <a href="https://github.com/acidanthera/MaciASL/releases" target="_blank">maciASL</a></p>
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