<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>4.4. Framebuffer output (FBdev)</title><link rel="stylesheet" type="text/css" href="default.css"><meta name="generator" content="DocBook XSL Stylesheets V1.76.1"><link rel="home" href="index.html" title="MPlayer - 电影播放器"><link rel="up" href="video.html" title="第 4 章 Video output devices"><link rel="prev" href="svgalib.html" title="4.3. SVGAlib"><link rel="next" href="mga_vid.html" title="4.5. Matrox framebuffer (mga_vid)"><link rel="preface" href="howtoread.html" title="如何阅读此文档"><link rel="chapter" href="intro.html" title="第 1 章 介绍"><link rel="chapter" href="install.html" title="第 2 章 Installation"><link rel="chapter" href="usage.html" title="第 3 章 Usage"><link rel="chapter" href="video.html" title="第 4 章 Video output devices"><link rel="chapter" href="ports.html" title="第 5 章 Ports"><link rel="chapter" href="mencoder.html" title="第 6 章 MEncoder的基础用法"><link rel="chapter" href="encoding-guide.html" title="第 7 章 Encoding with MEncoder"><link rel="chapter" href="faq.html" title="第 8 章 Frequently Asked Questions"><link rel="appendix" href="bugreports.html" title="附录 A. 如何报告错误"><link rel="appendix" href="skin.html" title="附录 B. MPlayer skin format"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">4.4. Framebuffer output (FBdev)</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="svgalib.html">上一页</a> </td><th width="60%" align="center">第 4 章 Video output devices</th><td width="20%" align="right"> <a accesskey="n" href="mga_vid.html">下一页</a></td></tr></table><hr></div><div class="sect1" title="4.4. Framebuffer output (FBdev)"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="fbdev"></a>4.4. Framebuffer output (FBdev)</h2></div></div></div><p>
Whether to build the FBdev target is autodetected during
<tt class="filename">./configure</tt>. Read the framebuffer documentation in
the kernel sources (<tt class="filename">Documentation/fb/*</tt>) for more
information.
</p><p>
If your card doesn't support VBE 2.0 standard (older ISA/PCI cards, such as
S3 Trio64), only VBE 1.2 (or older?): Well, VESAfb is still available, but
you'll have to load SciTech Display Doctor (formerly UniVBE) before booting
Linux. Use a DOS boot disk or whatever. And don't forget to register your
UniVBE ;))
</p><p>
The FBdev output takes some additional parameters above the others:
</p><div class="variablelist"><dl><dt><span class="term"><tt class="option">-fb</tt></span></dt><dd><p>
specify the framebuffer device to use (default: <tt class="filename">/dev/fb0</tt>)
</p></dd><dt><span class="term"><tt class="option">-fbmode</tt></span></dt><dd><p>
mode name to use (according to <tt class="filename">/etc/fb.modes</tt>)
</p></dd><dt><span class="term"><tt class="option">-fbmodeconfig</tt></span></dt><dd><p>
config file of modes (default: <tt class="filename">/etc/fb.modes</tt>)
</p></dd><dt><span class="term"><tt class="option">-monitor-hfreq</tt>, </span><span class="term"><tt class="option">-monitor-vfreq</tt>, </span><span class="term"><tt class="option">-monitor-dotclock</tt></span></dt><dd><p>
<span class="bold"><strong>important</strong></span> values, see
<tt class="filename">example.conf</tt>
</p></dd></dl></div><p>
If you want to change to a specific mode, then use
</p><pre class="screen">
mplayer -vm -fbmode <em class="replaceable"><code>name_of_mode</code></em> <em class="replaceable"><code>filename</code></em>
</pre><p>
</p><div class="itemizedlist"><ul class="itemizedlist" type="disc"><li class="listitem"><p>
<tt class="option">-vm</tt> alone will choose the most suitable mode from
<tt class="filename">/etc/fb.modes</tt>. Can be used together with
<tt class="option">-x</tt> and <tt class="option">-y</tt> options too. The
<tt class="option">-flip</tt> option is supported only if the movie's pixel
format matches the video mode's pixel format. Pay attention to the bpp
value, fbdev driver tries to use the current, or if you specify the
<tt class="option">-bpp</tt> option, then that.
</p></li><li class="listitem"><p>
<tt class="option">-zoom</tt> option isn't supported
(use <tt class="option">-vf scale</tt>). You can't use 8bpp (or less) modes.
</p></li><li class="listitem"><p>
You possibly want to turn the cursor off:
</p><pre class="screen">echo -e '\033[?25l'</pre><p>
or
</p><pre class="screen">setterm -cursor off</pre><p>
and the screen saver:
</p><pre class="screen">setterm -blank 0</pre><p>
To turn the cursor back on:
</p><pre class="screen">echo -e '\033[?25h'</pre><p>
or
</p><pre class="screen">setterm -cursor on</pre><p>
</p></li></ul></div><div class="note" title="注意" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">注意</h3><p>
FBdev video mode changing <span class="emphasis"><em>does not work</em></span> with the VESA
framebuffer, and don't ask for it, since it's not an
<span class="application">MPlayer</span> limitation.
</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="svgalib.html">上一页</a> </td><td width="20%" align="center"><a accesskey="u" href="video.html">上一级</a></td><td width="40%" align="right"> <a accesskey="n" href="mga_vid.html">下一页</a></td></tr><tr><td width="40%" align="left" valign="top">4.3. SVGAlib </td><td width="20%" align="center"><a accesskey="h" href="index.html">起始页</a></td><td width="40%" align="right" valign="top"> 4.5. Matrox framebuffer (mga_vid)</td></tr></table></div></body></html>
