2009-12-04 16:39:34 +00:00
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<title>FCEUX SDL FAQ</title>
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2018-07-14 18:11:23 +00:00
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2009-12-04 22:42:48 +00:00
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2016-07-31 17:55:40 +00:00
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<span class="largerfont">FCEUX<br/></span>The all in one NES/Famicom/Dendy Emulator
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2009-12-04 22:42:48 +00:00
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2018-07-14 18:11:23 +00:00
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2009-12-04 16:39:34 +00:00
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<center><h1>FCEUX SDL FAQ</h1></center>
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2020-12-11 02:43:50 +00:00
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<center><i>Last updated December 9, 2020<br /></i> by mjbudd77<br />
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2009-12-04 16:39:34 +00:00
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</center>
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<p><b>Table of Contents:</b></p>
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<ul>
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<li><a href="#git">What is the git build and how can I get it?</a></li>
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2009-12-04 16:39:34 +00:00
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<li><a href="#config">How do I configure a gamepad?</a></li>
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2010-03-03 09:27:22 +00:00
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<li><a href="#sound">My sound is stuttery/laggy. How can I fix this?</a></li>
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2020-12-11 02:43:50 +00:00
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<li><a href="#timing">My game is skipping frames. How can I fix this?</a></li>
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2010-03-03 09:27:22 +00:00
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<li><a href="#hotkeys1">How can I change my hotkey bindings?</a></li>
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<li><a href="#hotkeys2">Can I map hotkeys to my gamepad?</a></li>
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2009-12-04 16:39:34 +00:00
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</ul>
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2020-12-11 02:43:50 +00:00
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<a name="git"><h3>What is the git build and how can I get it?</h3></a>
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2012-02-10 05:50:19 +00:00
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<p>The most recent changes to fceuX are reflected immediately in the fceux
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2020-12-11 02:43:50 +00:00
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github server. You can checkout the source code to build
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2012-02-10 05:50:19 +00:00
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fceuX with the most recent sources by running the following command:</p>
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2020-12-11 02:43:50 +00:00
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<p><b>git clone https://github.com/TASVideos/fceux.git</b></p>
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<p>Instructions for compiling and installing fceuX can be found in the "README" file.</p>
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2009-12-04 16:39:34 +00:00
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<a name="config"><h3>How do I configure a gamepad?</h3></a>
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2020-12-11 02:43:50 +00:00
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<p>Using the Qt GUI, you can configure the gamepad by
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2012-02-10 05:50:19 +00:00
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selecting "Options...Gamepad" in the menubar.</p>
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2009-12-04 16:39:34 +00:00
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</p>
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2010-03-03 09:27:22 +00:00
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<a name="sound"><h3>My sound is stuttery/laggy. How can I fix this?</h3></a>
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<p>Try using different SDL audio drivers. You can set the SDL audio driver with
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the following command:</p>
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<p><b>export SDL_AUDIODRIVER=driver</b></p>
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<p>where driver is: esd,oss,alsa,pulse,nas,arts.</p>
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<p>There have been a lot of sound related bug fixes for the SDL port in recent releases, so
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you may want to try the latest version of fceuX to see if you are still having issues. FceuX
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2.1.4 fixed the majority of the reported sound issues.
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2010-03-03 09:27:22 +00:00
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</p>
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2020-12-11 02:43:50 +00:00
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<a name="timing"><h3>My game is skipping frames. How can I improve this?</h3></a>
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<p>The Qt/SDL version of fceux runs two threads. One for the GUI and one for the emulation.
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The realtime OS scheduling and priority of both of these threads can be tuned via the GUI
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timing config options window (accessible via the menu bar). For Mac OSX systems, fceux must
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have root permission to increase process priority. For Linux systems, add the following
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lines to the <b>/etc/security/limits.conf</b> file to ensure that fceux users have the proper system
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resource permissions (requires reboot after editing for changes to take place):
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<pre>
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* - priority 99
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* - rtprio 99
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* - nice -20
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</pre>
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</p>
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2012-02-10 05:50:19 +00:00
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<a name="hotkeys1"><h3>How can I change my emulator hotkey bindings?</h3></a>
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2020-12-11 02:43:50 +00:00
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<p>SDL hotkey bindings can be remapped using the Qt GUI. Selecting "Options...HotKeys" in the menubar.
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2010-03-03 09:27:22 +00:00
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</p>
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2012-02-10 05:50:19 +00:00
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<a name="hotkeys2"><h3>Can I map emulator hotkeys to my gamepad?</h3></a>
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<p>If you want to map particular hotkeys (pause, save state, load state, etc) to buttons on
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your gamepad, you can use software that allows you to map joystick events to key presses.
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<a href="http://qjoypad.sourceforge.net/">qjoypad</a> is the recomended solution for this. You
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can also use <a href="http://code.google.com/p/jkeys/">Jkeys</a> to do this.
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2010-03-03 09:27:22 +00:00
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2009-12-04 16:39:34 +00:00
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<a name="credits"><h2>Credits</h2></a>
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<p>
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<table border width="100%">
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<tr><th>Name:</th><th>Contribution(s):</th></tr>
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2010-03-03 09:27:22 +00:00
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<tr><td><a href="mailto:ltsmooth42 _at_ gmail _dot_ com">Lukas Sabota</a></td>
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2009-12-04 16:39:34 +00:00
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<td>Author of this document</td></tr>
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2020-12-11 02:43:50 +00:00
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<tr><td>mjbudd77</td>
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<td>Qt/SDL Updates</td></tr>
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2009-12-04 16:39:34 +00:00
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</table>
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</p>
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2009-12-04 17:01:40 +00:00
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Version History</a> | <a href="contact.html">Contact</a> | <a href="links.html">Links</a>
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2009-12-05 00:05:16 +00:00
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<br/>We are in no way affiliated or endorsed by Nintendo or Nintendo of America. "Nintendo" is a registered trademark of Nintendo of America Inc.
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<br/>©2009 adelikat
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2009-12-04 16:39:34 +00:00
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