94 lines
3.5 KiB
HTML
94 lines
3.5 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<meta name="generator" content=
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"HTML Tidy for Linux/x86 (vers 1 September 2005), see www.w3.org">
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"text/html; charset=us-ascii">
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<title>Chapter 37. Configuring External and Removable
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GPUs</title>
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<meta name="generator" content="DocBook XSL Stylesheets V1.68.1">
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<link rel="start" href="index.html" title=
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"NVIDIA Accelerated Linux Graphics Driver README and Installation Guide">
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<link rel="up" href="installationandconfiguration.html" title=
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"Part I. Installation and Configuration Instructions">
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<link rel="prev" href="kms.html" title=
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"Chapter 36. Direct Rendering Manager Kernel Modesetting (DRM KMS)">
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<table width="100%" summary="Navigation header">
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<tr>
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<th colspan="3" align="center">Chapter 37. Configuring
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External and Removable GPUs</th>
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</tr>
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<tr>
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<td width="20%" align="left"><a accesskey="p" href=
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"kms.html">Prev</a> </td>
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<th width="60%" align="center">Part I. Installation and
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Configuration Instructions</th>
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<td width="20%" align="right"> <a accesskey="n" href=
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"ngx.html">Next</a></td>
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</tr>
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</table>
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<hr></div>
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<div class="chapter" lang="en">
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<div class="titlepage">
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<div>
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<div>
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<h2 class="title"><a name="egpu" id=
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"egpu"></a>Chapter 37. Configuring External and Removable
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GPUs</h2>
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</div>
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</div>
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</div>
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<p>This driver release supports the use of external GPUs, or eGPUs,
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such as those commonly connected via Thunderbolt. However, system
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stability when an eGPU is unplugged while in use (also known as
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"hot-unplug") is not guaranteed. This includes situations where the
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eGPU is being used to display the X11 desktop.</p>
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<p>External GPUs are often used in short-running compute scenarios,
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which better tolerate the eGPU being hot-unplugged. In such cases,
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a different GPU may be used to display the X11 desktop.</p>
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<p>To prevent system instability from hot-unplugging an eGPU while
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being used to display the X11 desktop, the NVIDIA X driver does not
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configure X screens on external GPUs by default.</p>
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<p>This behavior may also apply to GPUs attached to internal PCIe
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slots with hot-unplug support, such as in some enterprise
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systems.</p>
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<p>To override this behavior in xorg.conf, see <a href=
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"xconfigoptions.html#AllowExternalGpus"><code class=
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"computeroutput">Option "AllowExternalGpus" "boolean"</code></a>.
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Then, external GPUs may be configured with X as one would any other
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secondary GPU, by specifying the BusID in the Device section in
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xorg.conf. See the xorg.conf man page for more information on the
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BusID option, and <a href="faq.html#busid">“What is the
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format of a PCI Bus ID?”</a> for information on how to
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determine the BusID.</p>
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"kms.html">Prev</a> </td>
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"installationandconfiguration.html">Up</a></td>
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<td width="40%" align="left" valign="top">
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Chapter 36. Direct Rendering Manager Kernel Modesetting
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(DRM KMS) </td>
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Chapter 38. NGX</td>
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</body>
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