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<span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></nav> <ul class="sidebar-links"><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>Introduction</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/Getting-Started-With-ACPI/" aria-current="page" class="sidebar-link">Getting Started With ACPI</a></li><li><a href="/Getting-Started-With-ACPI/ssdt-platform.html" class="sidebar-link">Choosing the SSDTs</a></li></ul></section></li><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>Methods</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/Getting-Started-With-ACPI/ssdt-methods/ssdt-methods.html" class="sidebar-link">How to create SSDTs</a></li><li><section class="sidebar-group is-sub-group depth-1"><p class="sidebar-heading"><span>Methods</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/Getting-Started-With-ACPI/ssdt-methods/ssdt-prebuilt.html" class="sidebar-link">Pre-Built SSDTs</a></li><li><a href="/Getting-Started-With-ACPI/ssdt-methods/ssdt-easy.html" class="sidebar-link">SSDTs: The easy way</a></li><li><a href="/Getting-Started-With-ACPI/ssdt-methods/ssdt-long.html" class="sidebar-link">SSDTs: The long way</a></li></ul></section></li></ul></section></li><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>Manual</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/Getting-Started-With-ACPI/Manual/dump.html" class="sidebar-link">Getting a copy of our DSDT</a></li><li><a href="/Getting-Started-With-ACPI/Manual/compile.html" class="sidebar-link">Compiling and decompiling ACPI Tables</a></li></ul></section></li><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>Desktop</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/Getting-Started-With-ACPI/Desktops/desktop-disable.html" class="sidebar-link">Disabling desktop dGPUs</a></li></ul></section></li><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>Laptop</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/Getting-Started-With-ACPI/Laptops/backlight.html" class="sidebar-link">Fixing Backlight</a></li><li><section class="sidebar-group collapsable is-sub-group depth-1"><p class="sidebar-heading"><span>Methods</span> <span class="arrow right"></span></p> <!----></section></li><li><a href="/Getting-Started-With-ACPI/Laptops/trackpad.html" class="sidebar-link">Fixing Trackpad</a></li><li><section class="sidebar-group collapsable is-sub-group depth-1"><p class="sidebar-heading"><span>Methods</span> <span class="arrow right"></span></p> <!----></section></li><li><a href="/Getting-Started-With-ACPI/Laptops/laptop-disable.html" class="sidebar-link">Disabling laptop dGPUs</a></li></ul></section></li><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>Universal</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/Getting-Started-With-ACPI/Universal/ec-fix.html" class="sidebar-link">Embedded Controller</a></li><li><section class="sidebar-group collapsable is-sub-group depth-1"><p class="sidebar-heading"><span>Methods</span> <span class="arrow right"></span></p> <!----></section></li><li><a href="/Getting-Started-With-ACPI/Universal/plug.html" class="sidebar-link">CPU Power Management</a></li><li><section class="sidebar-group collapsable is-sub-group depth-1"><p class="sidebar-heading"><span>Methods</span> <span class="arrow right"></span></p> <!----></section></li><li><a href="/Getting-Started-With-ACPI/Universal/awac.html" class="sidebar-link">AWAC vs RTC</a></li><li><section class="sidebar-group collapsable is-sub-group depth-1"><p class="sidebar-heading"><span>Methods</span> <span class="arrow right"></span></p> <!----></section></li><li><a href="/Getting-Started-With-ACPI/Universal/nvram.html" class="sidebar-link">NVRAM PMC</a></li><li><section class="sidebar-group collapsable is-sub-group depth-1"><p class="sidebar-heading"><span>Methods</span> <span class="arrow right"></span></p> <!----></section></li><li><a href="/Getting-Started-With-ACPI/Universal/rhub.html" class="sidebar-link">USB RHUB</a></li><li><section class="sidebar-group collapsable is-sub-group depth-1"><p class="sidebar-heading"><span>Methods</span> <span class="arrow right"></span></p> <!----></section></li><li><a href="/Getting-Started-With-ACPI/Universal/imei.html" class="sidebar-link">IMEI</a></li><li><section class="sidebar-group collapsable is-sub-group depth-1"><p class="sidebar-heading"><span>Methods</span> <span class="arrow right"></span></p> <!----></section></li><li><a href="/Getting-Started-With-ACPI/Universal/unc0.html" class="sidebar-link">Fixing Uncore Bridge</a></li><li><section class="sidebar-group collapsable is-sub-group depth-1"><p class="sidebar-heading"><span>Methods</span> <span class="arrow right"></span></p> <!----></section></li><li><a href="/Getting-Started-With-ACPI/Universal/smbus.html" class="sidebar-link">Fixing SMBus Support</a></li><li><section class="sidebar-group collapsable is-sub-group depth-1"><p class="sidebar-heading"><span>Methods</span> <span class="arrow right"></span></p> <!----></section></li><li><a href="/Getting-Started-With-ACPI/Universal/irq.html" class="sidebar-link">IRQ Fix</a></li><li><a href="/Getting-Started-With-ACPI/Universal/spoof.html" class="sidebar-link">GPU Spoof</a></li></ul></section></li><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>Cleanup</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/Getting-Started-With-ACPI/cleanup.html" class="sidebar-link">Cleanup</a></li></ul></section></li><li><section class="sidebar-group depth-0"><p class="sidebar-heading open"><span>Misc</span> <!----></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/Getting-Started-With-ACPI/troubleshooting.html" aria-current="page" class="active sidebar-link">Troubleshooting</a><ul class="sidebar-sub-headers"><li class="sidebar-sub-header"><a href="/Getting-Started-With-ACPI/troubleshooting.html#fixing-ssdttime-could-not-locate-or-download-iasl" class="sidebar-link">Fixing SSDTTime: Could not locate or download iasl!</a></li><li class="sidebar-sub-header"><a href="/Getting-Started-With-ACPI/troubleshooting.html#can-t-run-acpidump-efi-from-opencore" class="sidebar-link">Can't run acpidump.efi from OpenCore</a></li><li class="sidebar-sub-header"><a href="/Getting-Started-With-ACPI/troubleshooting.html#iasl-warning-unresolved" class="sidebar-link">iASL warning, # unresolved</a></li><li class="sidebar-sub-header"><a href="/Getting-Started-With-ACPI/troubleshooting.html#decompiling-error" class="sidebar-link">Decompiling Error</a></li><li class="sidebar-sub-header"><a href="/Getting-Started-With-ACPI/troubleshooting.html#invalid-character-0x3d-expecting-asl-keyword-or-name" class="sidebar-link">Invalid character (0x3D), expecting ASL keyword or name</a></li><li class="sidebar-sub-header"><a href="/Getting-Started-With-ACPI/troubleshooting.html#syntax-error-unexpected-parseop-one-expecting" class="sidebar-link">Syntax error, unexpected PARSEOP_ONE, expecting '('</a></li></ul></li><li><a href="/Getting-Started-With-ACPI/CONTRIBUTING.html" class="sidebar-link">Contributing</a></li></ul></section></li></ul> </aside> <main class="page"> <div class="theme-succinct-content content__default"><h1 id="troubleshooting"><a href="#troubleshooting" class="header-anchor">#</a> Troubleshooting</h1> <ul><li><a href="/Getting-Started-With-ACPI/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="/Getting-Started-With-ACPI/troubleshooting.html#cant-run-acpidumpefi-from-opencore">Can't run <code>acpidump.efi</code></a></li> <li><a href="/Getting-Started-With-ACPI/troubleshooting.html#iasl-warning--unresolved">iASL warning, # unresolved</a></li> <li><a href="/Getting-Started-With-ACPI/troubleshooting.html#decompiling-error">Decompiling Error</a></li> <li><a href="/Getting-Started-With-ACPI/troubleshooting.html#invalid-character-0x3d-expecting-asl-keyword-or-name">Invalid character (0x3D), expecting ASL keyword or name</a></li> <li><a href="/Getting-Started-With-ACPI/troubleshooting.html#syntax-error-unexpected-parseopone-expecting-">Syntax error, unexpected PARSEOP_ONE, expecting '('</a></li></ul> <h2 id="fixing-ssdttime-could-not-locate-or-download-iasl"><a href="#fixing-ssdttime-could-not-locate-or-download-iasl" class="header-anchor">#</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" rel="noopener noreferrer">iasl macOS version<span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></li> <li><a href="https://acpica.org/downloads/binary-tools" target="_blank" rel="noopener noreferrer">iasl Windows version<span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></li> <li><a href="http://amdosx.kellynet.nl/iasl.zip" target="_blank" rel="noopener noreferrer">iasl Linux version<span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></li></ul> <h2 id="can-t-run-acpidump-efi-from-opencore"><a href="#can-t-run-acpidump-efi-from-opencore" class="header-anchor">#</a> Can't run <code>acpidump.efi</code> from OpenCore</h2> <p>Grab <a href="https://github.com/acidanthera/OpenCorePkg/releases" target="_blank" rel="noopener noreferrer">OpenShell<span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a> and add it to EFI/OC/Tools and config.plist -> Misc -> Tools.</p> <p>Next, call upon OpenCore shell and enter the following:</p> <div class="language- extra-class"><pre class="language-text"><code>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></div><h2 id="iasl-warning-unresolved"><a href="#iasl-warning-unresolved" class="header-anchor">#</a> iASL warning, # unresolved</h2> <p>If you try to decompile your DSDT and get an error similar to this:</p> <div class="language- extra-class"><pre class="language-text"><code>iASL Warning: There were 19 external control methods found during disassembly, but only 0 were resolved (19 unresolved)
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</code></pre></div><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> <div class="language- extra-class"><pre class="language-text"><code>iasl * [insert all ACPI files here]
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</code></pre></div><h2 id="decompiling-error"><a href="#decompiling-error" class="header-anchor">#</a> Decompiling Error</h2> <p><img src="/troubleshooting-md/decompile-error.png" alt=""></p> <div class="language- extra-class"><pre class="language-text"><code>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></div><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" rel="noopener noreferrer">maciASL<span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></p> <h2 id="invalid-character-0x3d-expecting-asl-keyword-or-name"><a href="#invalid-character-0x3d-expecting-asl-keyword-or-name" class="header-anchor">#</a> Invalid character (0x3D), expecting ASL keyword or name</h2> <p><img src="/troubleshooting-md/invalid-parse.png" alt=""></p> <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" rel="noopener noreferrer">maciASL<span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></p> <h2 id="syntax-error-unexpected-parseop-one-expecting"><a href="#syntax-error-unexpected-parseop-one-expecting" class="header-anchor">#</a> Syntax error, unexpected PARSEOP_ONE, expecting '('</h2> <p><img src="/troubleshooting-md/invalid-parse.png" alt=""></p> <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" rel="noopener noreferrer">maciASL<span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></p></div> <footer class="page-edit"><!----> <div class="last-updated"><span class="prefix">Last Updated:</span> <span class="time">7/17/2020, 9:01:14 PM</span></div></footer> <div class="page-nav"><p class="inner"><span class="prev">
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