238 lines
6.5 KiB
HTML
238 lines
6.5 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML><HEAD><TITLE>Man page of AMDGPU</TITLE>
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</HEAD><BODY>
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<H1>AMDGPU</H1>
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Section: Devices and Network Interfaces (4)<BR>Updated: xf86-video-amdgpu 19.1.0<BR><A HREF="#index">Index</A>
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<A HREF="/cgi-bin/man/man2html">Return to Main Contents</A><HR>
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<A NAME="lbAB"> </A>
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<H2>NAME</H2>
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amdgpu - AMD RADEON GPU video driver
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<A NAME="lbAC"> </A>
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<H2>SYNOPSIS</H2>
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<PRE>
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<B>Section "Device"</B>
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<B> Identifier "</B><I>devname</I><B>"</B>
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<B> Driver "amdgpu"</B>
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...
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<B>EndSection</B>
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</PRE>
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<A NAME="lbAD"> </A>
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<H2>DESCRIPTION</H2>
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<B>amdgpu</B>
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is an Xorg driver for AMD RADEON-based video cards with the
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following features:
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<P>
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<DL COMPACT>
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<DT id="1">•<DD>
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Support for 8-, 15-, 16-, 24- and 30-bit pixel depths;
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<DT id="2">•<DD>
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RandR support up to version 1.4;
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<DT id="3">•<DD>
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3D acceleration;
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</DL>
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<A NAME="lbAE"> </A>
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<H2>SUPPORTED HARDWARE</H2>
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The
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<B>amdgpu</B>
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driver supports SI and newer families' video cards.
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<A NAME="lbAF"> </A>
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<H2>CONFIGURATION DETAILS</H2>
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Please refer to <A HREF="/cgi-bin/man/man2html?5+xorg.conf">xorg.conf</A>(5) for general configuration
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details. This section only covers configuration details specific to this
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driver.
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<P>
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The following driver
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<B>Options</B>
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are supported:
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<DL COMPACT>
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<DT id="4"><B>Option "SWcursor" "</B><I>boolean</I><B>"</B>
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<DD>
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Selects software cursor. The default is
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<B>off.</B>
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<DT id="5"><B>Option "Accel" "</B><I>boolean</I><B>"</B>
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<DD>
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Enables or disables all hardware acceleration.
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<BR>
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The default is
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<B>on.</B>
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<P>
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<DT id="6"><B>Option "ZaphodHeads" "</B><I>string</I><B>"</B>
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<DD>
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Specify the RandR output(s) to use with zaphod mode for a particular driver
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instance. If you use this option you must use this option for all instances
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of the driver.
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<BR>
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For example:
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<B>Option "ZaphodHeads" "LVDS,VGA-0"</B>
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will assign xrandr outputs LVDS and VGA-0 to this instance of the driver.
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<DT id="7"><B>Option "DRI" "</B><I>integer</I><B>"</B>
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<DD>
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Define the maximum level of DRI to enable. Valid values are 2 for DRI2 or 3 for DRI3.
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The default is
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<B>3 for DRI3</B>
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if the Xorg version is >= 1.18.3, otherwise
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<B>2 for DRI2.</B>
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<DT id="8"><B>Option "EnablePageFlip" "</B><I>boolean</I><B>"</B>
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<DD>
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Enable DRI2 page flipping. The default is
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<B>on.</B>
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<DT id="9"><B>Option "TearFree" "</B><I>boolean</I><B>"</B>
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<DD>
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Set the default value of the per-output 'TearFree' property, which controls
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tearing prevention using the hardware page flipping mechanism. TearFree is
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on for any CRTC associated with one or more outputs with TearFree on. Two
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separate scanout buffers need to be allocated for each CRTC with TearFree
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on. If this option is set, the default value of the property is 'on' or 'off'
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accordingly. If this option isn't set, the default value of the property is
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<B>auto,</B>
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which means that TearFree is on for rotated outputs, outputs with RandR
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transforms applied and for RandR 1.4 slave outputs, otherwise off.
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<DT id="10"><B>Option "VariableRefresh" "</B><I>boolean</I><B>"</B>
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<DD>
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Enables support for enabling variable refresh on the Screen's CRTCs
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when an suitable application is flipping via the Present extension.
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<BR>
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The default is
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<B>off.</B>
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<DT id="11"><B>Option "AccelMethod" "</B><I>string</I><B>"</B>
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<DD>
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Setting this option to
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<B>none</B>
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disables use of the glamor acceleration architecture. In that case, all 2D
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rendering is done by the CPU, but 3D and video hardware acceleration can still
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work. This is mainly useful for OpenGL driver bring-up.
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<BR>
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The default is to use glamor.
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<P>
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</DL>
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<P>
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The following driver
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<B>Option</B>
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is supported for
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<B>glamor</B>
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:
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<DL COMPACT>
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<DT id="12"><B>Option "ShadowPrimary" "</B><I>boolean</I><B>"</B>
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<DD>
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This option enables a so-called "shadow primary" buffer for fast CPU access to
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pixel data, and separate scanout buffers for each display controller (CRTC).
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This may improve performance for some 2D workloads, potentially at the expense
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of other (e.g. 3D, video) workloads.
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Note in particular that enabling this option currently disables page flipping.
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The default is
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<B>off.</B>
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<P>
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</DL>
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<A NAME="lbAG"> </A>
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<H2>SEE ALSO</H2>
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<A HREF="/cgi-bin/man/man2html?1+Xorg">Xorg</A>(1), <A HREF="/cgi-bin/man/man2html?5+xorg.conf">xorg.conf</A>(5), <A HREF="/cgi-bin/man/man2html?1+Xserver">Xserver</A>(1), <A HREF="/cgi-bin/man/man2html?7+X">X</A>(7)
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<DL COMPACT>
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<DT id="13"> 1.<DD>
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Wiki page:
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<DL COMPACT><DT id="14"><DD>
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<A HREF="https://www.x.org/wiki/radeon">https://www.x.org/wiki/radeon</A>
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</DL>
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<DT id="15"> 2.<DD>
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Overview about amdgpu development code:
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<DL COMPACT><DT id="16"><DD>
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<A HREF="https://cgit.freedesktop.org/xorg/driver/xf86-video-amdgpu/">https://cgit.freedesktop.org/xorg/driver/xf86-video-amdgpu/</A>
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</DL>
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<DT id="17"> 3.<DD>
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Mailing list:
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<DL COMPACT><DT id="18"><DD>
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<A HREF="https://lists.freedesktop.org/mailman/listinfo/amd-gfx">https://lists.freedesktop.org/mailman/listinfo/amd-gfx</A>
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</DL>
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<DT id="19"> 4.<DD>
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IRC channel:
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<DL COMPACT><DT id="20"><DD>
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#radeon on irc.freenode.net
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</DL>
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<DT id="21"> 5.<DD>
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Query the bugtracker for amdgpu bugs:
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<DL COMPACT><DT id="22"><DD>
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<A HREF="https://bugs.freedesktop.org/query.cgi?product=xorg">https://bugs.freedesktop.org/query.cgi?product=xorg</A>&component=Driver/AMDgpu
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</DL>
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<DT id="23"> 6.<DD>
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Submit bugs & patches:
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<DL COMPACT><DT id="24"><DD>
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<A HREF="https://bugs.freedesktop.org/enter_bug.cgi?product=xorg">https://bugs.freedesktop.org/enter_bug.cgi?product=xorg</A>&component=Driver/AMDgpu
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</DL>
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<P>
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</DL>
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<A NAME="lbAH"> </A>
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<H2>AUTHORS</H2>
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<PRE>
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Authors include:
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Michel Dänzer <I><A HREF="mailto:michel@daenzer.net">michel@daenzer.net</A></I>
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Alex Deucher <I><A HREF="mailto:alexdeucher@gmail.com">alexdeucher@gmail.com</A></I>
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</PRE>
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<HR>
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<A NAME="index"> </A><H2>Index</H2>
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<DL>
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<DT id="25"><A HREF="#lbAB">NAME</A><DD>
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<DT id="26"><A HREF="#lbAC">SYNOPSIS</A><DD>
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<DT id="27"><A HREF="#lbAD">DESCRIPTION</A><DD>
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<DT id="28"><A HREF="#lbAE">SUPPORTED HARDWARE</A><DD>
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<DT id="29"><A HREF="#lbAF">CONFIGURATION DETAILS</A><DD>
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<DT id="30"><A HREF="#lbAG">SEE ALSO</A><DD>
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<DT id="31"><A HREF="#lbAH">AUTHORS</A><DD>
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</DL>
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<HR>
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This document was created by
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<A HREF="/cgi-bin/man/man2html">man2html</A>,
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using the manual pages.<BR>
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Time: 00:06:01 GMT, March 31, 2021
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</BODY>
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</HTML>
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