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  Installing and Using compiz-fusion in FreeBSD

  The FreeBSD Greek Documentation Project

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<article lang="el">
  <articleinfo>
    <title>ÅãêáôÜóôáóç êáé ÷ñÞóç ôïõ Compiz&nbsp;Fusion</title>

    <author>
      <firstname>Ìáíþëçò</firstname>
      <surname>ÊéáãéÜò</surname>
      <affiliation>
	<address><email>manolis@FreeBSD.org</email></address>
      </affiliation>
    </author>

    <copyright>
      <year>2008</year>
      <holder role="mailto:manolis@FreeBSD.org">Ìáíþëçò ÊéáãéÜò</holder>
    </copyright>

    <pubdate>$FreeBSD$</pubdate>

    <releaseinfo>$FreeBSD$</releaseinfo>

    <legalnotice id="trademarks" role="trademarks">
      &tm-attrib.freebsd;
      &tm-attrib.general;
    </legalnotice>

    <abstract>
      <para>Ç ðéï ðñüóöáôç <quote>ìüäá</quote> óôïí êüóìï ôïõ &linux; åßíáé
	áíáìößâïëá ôá ôñéóäéÜóôáôá åöÝ óôï desktop.  Áí êáé ç ÷ñçóéìüôçôá ôïõò
	Ý÷åé áìöéóâçôçèåß, äåí ðáýïõí íá åíôõðùóéÜæïõí êáé íá ðáñáìÝíïõí
	óõíÝ÷åéá óôç äçìïóéüôçôá.  Ôá åöÝ áõôÜ õëïðïéïýíôáé ìå ôç âïÞèåéá
	äéÜöïñùí ðñïãñáììÜôùí üðùò ôá
	<ulink url="http://compiz.org/"><application>Compiz</application></ulink>,
	<ulink url="http://www.beryl-project.org/"><application>Beryl</application></ulink>,
	êáé ôï ðéï ðñüóöáôï <ulink url="http://www.compiz-fusion.org/"><application>Compiz&nbsp;Fusion</application></ulink>.
	Äåí ÷ñåéÜæåôáé íá óôåñåßóôå áõôÜ ôá åöÝ üôáí ÷ñçóéìïðïéåßôå ôï &os;.
	Ïé ïäçãßåò ðïõ áêïëïõèïýí èá óáò âïçèÞóïõí íá åãêáôáóôÞóåôå êáé íá
	ñõèìßóåôå óôï óýóôçìá óáò ôá ðñïãñÜììáôá ðïõ áðáéôïýíôáé ãéá íá
	Ý÷åôå ôá ðëÝïí ðñüóöáôá ôñéóäéÜóôáôá åöÝ ðïõ ðñïóöÝñåé ôï
	<application>Compiz&nbsp;Fusion</application> ÷ñçóéìïðïéþíôáò (áí
	÷ñåéÜæåôáé) êáé ôçí êáôÜëëçëç Ýêäïóç ôùí ðñïãñáììÜôùí ïäÞãçóçò
	ãñáöéêþí ôçò nVidia.</para>
    </abstract>
  </articleinfo>

  <sect1 id="introduction">
    <title>ÅéóáãùãÞ</title>

    <para>H åãêáôÜóôáóç ôïõ <application>Compiz&nbsp;Fusion</application>
      áðü ôçí óõëëïãÞ ôùí Ports, åßíáé ìéá ó÷åôéêÜ áðëÞ äéáäéêáóßá.
      ×ñåéÜæïíôáé, üìùò, êáé êÜðïéåò åðéðëÝïí ñõèìßóåéò, ïé ïðïßåò äåí
      ðåñéãñÜöïíôáé óôçí ôåêìçñßùóç ôïõ port.  Ôï Üñèñï áõôü èá óáò âïçèÞóåé
      íá ñõèìßóåôå ôïí <application>&xorg;</application> server ãéá
      ôñéóäéÜóôáôç ëåéôïõñãßá, íá ñõèìßóåôå ôçí nVidia êÜñôá ãñáöéêþí óáò,
      êáé ôåëéêÜ íá åãêáôáóôÞóåôå êáé íá åêôåëÝóåôå ôçí åöáñìïãÞ
      <command>compiz</command>.</para>

    <para>Áöïý äéáâÜóåôå áõôü ôï Üñèñï, èá îÝñåôå:</para>

    <itemizedlist>
      <listitem>
	<para>Ðùò íá ñõèìßóåôå ôï ðéï ðñüóöáôï ðñüãñáììá ïäÞãçóçò ôçò nVidia
	  (áí áðáéôåßôáé) ãéá ôï óýóôçìá óáò.</para>
      </listitem>

      <listitem>
	<para>Ðùò íá ñõèìßóåôå ôï áñ÷åßï <filename>xorg.conf</filename> ãéá
	  íá ìðïñÝóåôå íá åíåñãïðïéÞóåôå ôá ôñéóäéÜóôáôá åöÝ.</para>
      </listitem>

      <listitem>
	<para>Ðùò íá åãêáôáóôÞóåôå êáé íá ñõèìßóåôå ôï
	  <application>Compiz&nbsp;Fusion</application> ÷ñçóéìïðïéþíôáò ôçí
	  óõëëïãÞ ôùí Ports.</para>
      </listitem>

      <listitem>
	<para>Ðùò íá áíôéìåôùðßóåôå óõíçèéóìÝíá ðñïâëÞìáôá ðïõ áöïñïýí ôá
	  ôñéóäéÜóôáôá åöÝ.</para>
      </listitem>
    </itemizedlist>
  </sect1>

  <sect1 id="nvidia-setup">
    <title>Ñýèìéóç ôùí ðñïãñáììÜôùí ïäÞãçóçò ôçò nVidia ãéá ôï &os;</title>

    <para>Ôá ôñéóäéÜóôáôá åöÝ áðáéôïýí áñêåôÞ éó÷ý åðåîåñãáóßáò áðü ôçí
      êÜñôá ãñáöéêþí óáò.  Áí ÷ñçóéìïðïéåßôå êÜðïéá êÜñôá ãñáöéêþí ðïõ
      âáóßæåôáé óå êõêëþìáôá ôçò nVidia, èá ðñÝðåé íá åãêáôáóôÞóåôå êáé íá
      ñõèìßóåôå ôï ðñüãñáììá ïäÞãçóçò ðïõ ðáñÝ÷åôáé áðü ôçí åôáéñßá ãéá ôï
      &os;, ÷ñçóéìïðïéþíôáò ôçí Ýêäïóç ðïõ åßíáé êáôÜëëçëç ãéá ôï óýóôçìá
      óáò.  Áí ÷ñçóéìïðïéåßôå êÜðïéá Üëëç êÜñôá, ðïõ üìùò ãíùñßæåôå üôé ìðïñåß
      íá áíôáðïêñéèåß óôéò áðáéôÞóåéò ôùí åöÝ, ìðïñåßôå íá ðáñáëåßøåôå áõôÞ
      ôçí åíüôçôá êáé íá óõíå÷ßóåôå ìå ôçí ñýèìéóç ôïõ
      <filename>xorg.conf</filename>.</para>

    <sect2 id="determine-driver">
      <title>Ðñïóäéïñßóôå ôï óùóôü ðñüãñáììá ïäÞãçóçò</title>

      <para>ÕðÜñ÷ïõí äéÜöïñåò åêäüóåéò ôùí ðñïãñáììÜôùí ïäÞãçóçò ôçò nVidia
	óôç óõëëïãÞ ôùí ports.  Ç åðéëïãÞ ôïõ óùóôïý ðñïãñÜììáôïò ãéá ôï
	óýóôçìá óáò, åîáñôÜôáé áðü ôï ìïíôÝëï (êáé ôçí ðáëáéüôçôá) ôçò êÜñôáò
	ãñáöéêþí óáò:</para>

      <itemizedlist>
	<listitem>
	  <para>Ïé ôåëåõôáßåò åêäüóåéò ôùí êáñôþí nVidia, õðïóôçñßæïíôáé áðü
	    ôï port <filename role="package">x11/nvidia-driver</filename>.</para>
	</listitem>
	<listitem>
	  <para>ÊÜñôåò ôçò nVidia ðïõ áíÞêïõí óôéò óåéñÝò GeForce 2MX/3/4
	    õðïóôçñßæïíôáé áðü ôá ðñïãñÜììáôá ïäÞãçóçò ôçò óåéñÜò 96 ôá ïðïßá
	    äéáôßèåíôáé ìÝóù ôïõ port
	    <filename role="package">x11/nvidia-driver-96xx</filename>.</para>
	</listitem>
	<listitem>
	  <para>Áêüìá ðéï ðáëéÝò êÜñôåò, üðùò ïé GeForce êáé RIVA TNT
	    õðïóôçñßæïíôáé áðü ôç óåéñÜ 71 ôùí ðñïãñáììÜôùí ïäÞãçóçò, ôá
	    ïðïßá äéáôßèåíôáé ìÝóù ôïõ port
	    <filename role="package">x11/nvidia-driver-71xx</filename>.</para>
	</listitem>
      </itemizedlist>

      <para>Óôçí ðñáãìáôéêüôçôá, ç nVidia ðáñÝ÷åé ëåðôïìåñåßò ðëçñïöïñßåò
	ó÷åôéêÜ ìå ôï ðïéá êÜñôá õðïóôçñßæåôáé áðü ðïéï ðñüãñáììá ïäÞãçóçò.
	Ïé ðëçñïöïñßåò áõôÝò äéáôßèåíôáé áðåõèåßáò áðü ôï äéêôõáêü ôïõò ôüðï:
	<ulink url="http://www.nvidia.com/object/IO_32667.html"></ulink>.</para>
    </sect2>

    <sect2 id="install-driver">
      <title>ÅãêáôÜóôáóç ôïõ ðñïãñÜììáôïò ïäÞãçóçò ôçò nVidia</title>

      <para>Áöïý êáèïñßóåôå ôï óùóôü ðñüãñáììá ïäÞãçóçò ãéá ôçí êÜñôá óáò,
	ç åãêáôÜóôáóç åßíáé ôï ßäéï áðëÞ ìå ïðïéïäÞðïôå Üëëç åöáñìïãÞ ôçò
	óõëëïãÞò ôùí ports.</para>

      <note>
	<para>Âåâáéùèåßôå üôé Ý÷åôå áíáíåþóåé ôç óõëëïãÞ ôùí ports,
	  ÷ñçóéìïðïéþíôáò ôç ìÝèïäï ðïõ ðñïôéìÜôå (ð.÷.
	  <application>csup</application>, <application>CVSup</application> Þ
	  <application>portsnap</application>) ðñéí åãêáôáóôÞóåôå
	  ïðïéáäÞðïôå åöáñìïãÞ áðü ôá ports.  Ôá ðñïãñÜììáôá ïäÞãçóçò ôùí
	  êáñôþí ãñáöéêþí, êáèþò êáé ôá ðñïãñÜììáôá ôñéóäéÜóôáôùí åöÝ, åßíáé
	  õðü óõíå÷Þ åîÝëéîç êáé åìöáíßæïíôáé ôáêôéêÜ íÝåò åêäüóåéò.</para>
      </note>

      <para>Ãéá ðáñÜäåéãìá, ãéá íá åãêáôáóôÞóåôå ôï ôåëåõôáßï ðñüãñáììá
	ïäÞãçóçò:</para>

      <screen>&prompt.root; <userinput>cd /usr/ports/x11/nvidia-driver</userinput>
&prompt.root; <userinput>make install clean</userinput></screen>

      <para>Ôï ðñüãñáììá ïäÞãçóçò èá äçìéïõñãÞóåé Ýíá Üñèñùìá (module) ãéá ôïí
	ðõñÞíá, ôï ïðïßï èá ðñÝðåé íá öïñôùèåß óôçí åêêßíçóç ôïõ óõóôÞìáôïò.
	Èá ÷ñåéáóôåß íá ðñïóèÝóåôå ôçí áêüëïõèç ãñáììÞ óôï áñ÷åßï
	<filename>/boot/loader.conf</filename>:</para>

      <programlisting>nvidia_load="YES"</programlisting>

      <note>
	<para>Ìðïñåßôå íá öïñôþóåôå ôï Üñèñùìá áðåõèåßáò óôïí ðõñÞíá ðïõ
	  åêôåëåßôáé ôç äåäïìÝíç ÷ñïíéêÞ óôéãìÞ ÷ñçóéìïðïéþíôáò ôçí åíôïëÞ
	  <command>kldload nvidia</command>, áëëÜ Ý÷åé ðáñáôçñçèåß üôé ïé
	  ôåëåõôáßåò åêäüóåéò ôïõ <application>&xorg;</application> äåí
	  ëåéôïõñãïýí óùóôÜ áí ôï ðñüãñáììá ïäÞãçóçò äåí öïñôùèåß êáôÜ ôçí
	  åêêßíçóç ôïõ óõóôÞìáôïò.  Ãéá ôï ëüãï áõôü, óáò óõíéóôïýìå íá
	  åðáíåêêéíÞóåôå ôï óýóôçìá óáò ìåôÜ ôçí ðñïóèÞêç ôçò êáôá÷þñçóçò
	  óôï áñ÷åßï <filename>/boot/loader.conf</filename>.</para>
      </note>

      <para>¸÷ïíôáò öïñôþóåé ôï Üñèñùìá óôïí ðõñÞíá, ÷ñåéÜæåôáé ìüíï ìéá ìéêñÞ
	áëëáãÞ óå ìéá ãñáììÞ ôïõ áñ÷åßïõ <filename>xorg.conf</filename> ãéá íá
	åíåñãïðïéÞóåôå ôï ðñüãñáììá ïäÞãçóçò.</para>

      <para>Âñåßôå ôçí áêüëïõèç ãñáììÞ óôï
	<filename>/etc/X11/xorg.conf</filename>:</para>

      <programlisting>Driver      "nv"</programlisting>

      <para>êáé áëëÜîôå ôçí óå:</para>

      <programlisting>Driver      "nvidia"</programlisting>

      <para>¼ôáí îåêéíÞóåôå ôï ãñáöéêü ðåñéâÜëëïí ìå ôï óõíÞèç ôñüðï, èá äåßôå
	ôçí ïèüíç ÷áéñåôéóìïý ôçò nVidia.  ¼ëá èá ðñÝðåé íá ëåéôïõñãïýí
	êáíïíéêÜ.  Óçìåéþóôå ùóôüóï, üôé óôï óçìåßï áõôü äåí Ý÷åé áêüìá
	ñõèìéóôåß ôï <application>&xorg;</application> ãéá ôñéóäéÜóôáôá åöÝ.
	Ç ñýèìéóç áõôÞ ðåñéãñÜöåôáé ðáñáêÜôù.</para>

      <note>
	<para>Áí êáé äåí åßíáé ïðùóäÞðïôå áðáñáßôçôï, ìðïñåßôå åðßóçò íá
	  åãêáôáóôÞóåôå ôá ports
	  <filename role="package">x11/nvidia-xconfig</filename> êáé
	  <filename role="package">x11/nvidia-settings</filename>.  Ôï ðñþôï
	  ìðïñåß íá óáò âïçèÞóåé íá ñõèìßóåôå ôï
	  <filename>/etc/X11/xorg.conf</filename> ìÝóù ôçò ãñáììÞò åíôïëþí,
	  åíþ ôï äåýôåñï èá óáò åðéôñÝøåé íá áëëÜæåôå ñõèìßóåéò óôçí ïèüíç
	  ìÝóá áðü ãñáöéêü ðåñéâÜëëïí êáé åíþ åêôåëåßôáé ôï
	  <application>&xorg;</application>.</para>
      </note>
    </sect2>
  </sect1>

  <sect1 id="xorg-configuration">
    <title>Ñýèìéóç ôïõ xorg.conf ãéá ôñéóäéÜóôáôá åöÝ</title>

    <para>Ðñéí åãêáôáóôÞóåôå êáé åêôåëÝóåôå ôï
      <application>Compiz&nbsp;Fusion</application>, èá ðñÝðåé íá ðñïóèÝóåôå
      ìåñéêÝò ñõèìßóåéò óôï <filename>/etc/X11/xorg.conf</filename>:</para>

    <para>ÐñïóèÝóôå ôéò áêüëïõèåò ãñáììÝò ãéá íá åíåñãïðïéçèïýí ôá åöÝ ôýðïõ
      composite:</para>

    <programlisting>Section "Extensions"
Option         "Composite" "Enable"
EndSection</programlisting>

    <para>Åíôïðßóôå ôï ôìÞìá <quote>Screen</quote> ôï ïðïßï èá ìïéÜæåé ìå ôï
      ðáñáêÜôù:</para>

    <programlisting>Section "Screen"
Identifier     "Screen0"
Device         "Card0"
Monitor        "Monitor0"
...</programlisting>

    <para>êáé ðñïóèÝóôå ôéò äýï ãñáììÝò ðïõ áêïëïõèïýí (ìðïñåßôå íá ôéò
      âÜëåôå ìåôÜ ôçí êáôá÷þñçóç <quote>Monitor</quote>):</para>

    <programlisting>DefaultDepth    24
Option         "AddARGBGLXVisuals" "True"</programlisting>

    <para>Åíôïðßóôå ôï <quote>Subsection</quote> ôï ïðïßï áíáöÝñåôáé óôçí
      åðéèõìçôÞ áíÜëõóç ïèüíçò.  Ãéá ðáñÜäåéãìá, áí èÝëåôå íá ÷ñçóéìïðïéÞóåôå
      áíÜëõóç 1280x1024, âñåßôå ôçí åíüôçôá ðïõ öáßíåôáé óôï ðáñÜäåéãìá.  Áí
      äåí õðÜñ÷åé åíüôçôá ðïõ íá áíáöÝñåôáé óôçí åðéèõìçôÞ áíÜëõóç, ìðïñåßôå
      íá ôçí ðñïóèÝóåôå ÷åéñïêßíçôá:</para>

    <programlisting>SubSection     "Display"
Viewport    0 0
Modes      "1280x1024"
EndSubSection</programlisting>

    <para>Ãéá ôç ëåéôïõñãßá ôùí åöÝ, áðáéôåßôáé âÜèïò ÷ñþìáôïò 24bits.
      ÁëëÜîôå ôï ðáñáðÜíù þóôå íá äåß÷íåé:</para>

    <programlisting>SubSection     "Display"
Viewport    0 0
Depth       24
Modes      "1280x1024"
EndSubSection</programlisting>

    <para>ÔÝëïò, åðéâåâáéþóôå üôé öïñôþíïíôáé ôá áñèñþìáôá <quote>glx</quote>
      êáé <quote>extmod</quote> ìÝóá áðü ôï ôìÞìá
      <quote>Module</quote>:</para>

    <programlisting>Section "Module"
Load           "extmod"
Load           "glx"
...</programlisting>

    <note>
      <para>Áí Ý÷åôå åãêáôáóôÞóåé ôï port
	<filename role="package">x11/nvidia-xconfig</filename>,
	ìðïñåßôå íá êÜíåôå ôéò ðåñéóóüôåñåò áðü ôéò ðáñáðÜíù ñõèìßóåéò
	äßíïíôáò ôéò áêüëïõèåò åíôïëÝò (ùò root):</para>

	<screen>&prompt.root; <userinput>nvidia-xconfig --add-argb-glx-visuals</userinput>
&prompt.root; <userinput>nvidia-xconfig --composite</userinput>
&prompt.root; <userinput>nvidia-xconfig --depth=24</userinput></screen>

	<para>Áí èÝëåôå íá äåßôå üëåò ôéò äõíáôüôçôåò ôïõ ðáñáðÜíù
	  ðñïãñÜììáôïò, äþóôå ôçí åíôïëÞ
	  <command>nvidia-xconfig -A | more</command>.</para>
    </note>
  </sect1>

  <sect1 id="compiz-fusion">
    <title>ÅãêáôÜóôáóç êáé ñýèìéóç Compiz&nbsp;Fusion</title>

    <para>Ç åãêáôÜóôáóç ôïõ <application>Compiz&nbsp;Fusion</application>
      åßíáé ôï ßäéï áðëÞ ìå ïðïéïäÞðïôå Üëëï ðñüãñáììá:</para>

    <screen>&prompt.root; <userinput>cd /usr/ports/x11-wm/compiz-fusion</userinput>
&prompt.root; <userinput>make install clean</userinput></screen>

    <para>Âåâáéùèåßôå üôé åðéëÝîáôå ôá <quote>EXTRA</quote> plugins êáé ôï
      <quote>EMERALD</quote> window decorator áðü ôç ëßóôá åðéëïãþí ðïõ èá
      åìöáíéóôåß.  Áí ÷ñçóéìïðïéåßôå <application>GNOME</application>, Þ Ý÷åôå
      åãêáôáóôÞóåé óôï óýóôçìá óáò õðïóôÞñéîç <command>gconf</command>,
      ìðïñåßôå åðßóçò íá åðéëÝîåôå <quote>gconf support</quote>.  Ìå ôïí ôñüðï
      áõôü, ïé ñõèìßóåéò ôùí åöÝ èá åíóùìáôùèïýí ìå ôéò Üëëåò ñõèìßóåéò ðïõ
      Ý÷åôå êÜíåé óôï ãñáöéêü ðåñéâÜëëïí óáò, êáé èá ìðïñåßôå íá ôéò äåßôå
      ÷ñçóéìïðïéþíôáò ôï <command>gconf-editor</command>.  Ùóôüóï, ôï
      <application>Compiz&nbsp;Fusion</application>
      <emphasis>ìðïñåß</emphasis> íá áðïèçêåýóåé ôéò ñõèìßóåéò ôïõ êáé óå áðëÜ
      áñ÷åßá êåéìÝíïõ, áí äåí åðéèõìåßôå ôÝôïéïõ åßäïõò ïëïêëÞñùóç.  Óôçí
      ðåñßðôùóç áõôÞ, èá äçìéïõñãçèåß ï êáôÜëïãïò
      <filename>.compizconfig</filename> ìÝóá óôïí ðñïóùðéêü óáò
      êáôÜëïãï.</para>

    <para>ÌåôÜ ôï ôÝëïò ôçò åãêáôÜóôáóçò, îåêéíÞóôå ôï ãñáöéêü ðåñéâÜëëïí êáé
      óå Ýíá ôåñìáôéêü, äþóôå (ùò áðëüò ÷ñÞóôçò) ôéò áêüëïõèåò åíôïëÝò:</para>

    <screen>&prompt.user; <userinput>compiz --replace --sm-disable --ignore-desktop-hints ccp &amp;</userinput>
<userinput>&prompt.user; emerald --replace &amp;</userinput></screen>

    <para>Ç ïèüíç óáò èá ôñåìïðáßîåé ãéá ëßãá äåõôåñüëåðôá, êáèþò èá ãßíåôáé
      áíôéêáôÜóôáóç ôïõ ôñÝ÷ïíôïò äéá÷åéñéóôÞ ðáñáèýñùí óáò (ð.÷.
      <application>Metacity</application> áí ÷ñçóéìïðïéåßôå ðåñéâÜëëïí
      <application>GNOME</application>) áðü ôï
      <application>Compiz&nbsp;Fusion</application>.  Ç åöáñìïãÞ
      <application>Emerald</application> áíáëáìâÜíåé ôéò äéáêïóìÞóåéò ôùí
      ðáñáèýñùí (ð.÷. ôá ðëÞêôñá ãéá êëåßóéìï, ìåãéóôïðïßçóç, åëá÷éóôïðïßçóç,
      ôéò ìðÜñåò ôßôëùí ê.ï.ê.).</para>

    <para>Ìðïñåßôå íá ìåôáôñÝøåôå ôï ðáñáðÜíù óå Ýíá áðëïúêü script ôï ïðïßï
      íá åêôåëåßôáé áõôüìáôá êáôÜ ôçí åêêßíçóç ôïõ ðåñéâÜëëïíôïò (ð.÷.
      ðñïóèÝôïíôáò ôï óôï <quote>Sessions</quote> óôï ãñáöéêü ðåñéâÜëëïí
      <application>GNOME</application>):</para>

    <programlisting>#! /bin/sh
compiz --replace --sm-disable --ignore-desktop-hints ccp &amp;
emerald --replace &amp;</programlisting>

    <para>Áðïèçêåýóôå ôï óôïí êáôÜëïãï óáò, ãéá ðáñÜäåéãìá ìå ôï üíïìá
      <filename>start-compiz</filename> êáé äþóôå ôïõ äéêáéþìáôá
      åêôÝëåóçò:</para>

    <screen>&prompt.user; <userinput>chmod +x ~/start-compiz</userinput></screen>

    <para>×ñçóéìïðïéÞóôå Ýðåéôá ôá ãñáöéêÜ åñãáëåßá ãéá íá ôï ðñïóèÝóåôå óôá
      ðñïãñÜììáôá åêêßíçóçò,
      <guimenuitem>Startup Programs</guimenuitem>
      (âñßóêåôáé óôï <guimenuitem>System</guimenuitem>,
      <guimenuitem>Preferences</guimenuitem>,
      <guimenuitem>Sessions</guimenuitem> óôï ðåñéâÜëëïí åñãáóßáò
      <application>GNOME</application>).</para>

    <para>Ãéá íá ñõèìßóåôå üðùò èÝëåôå ôá åöÝ, åêôåëÝóôå (ðÜëé ùò êáíïíéêüò
      ÷ñÞóôçò) ôçí åöáñìïãÞ
      <application>Compiz&nbsp;Config&nbsp;Settings&nbsp;Manager</application>:</para>

    <screen>&prompt.user; <userinput>ccsm</userinput></screen>

    <note>
      <para>Óôï <application>GNOME</application>, ìðïñåßôå íá âñåßôå ôçí
	åöáñìïãÞ áõôÞ óôï ìåíïý <guimenuitem>System</guimenuitem>,
	<guimenuitem>Preferences</guimenuitem>.</para>
    </note>

    <para>Áí åðéëÝîáôå <quote>gconf support</quote> êáôÜ ôç ìåôáãëþôôéóç,
      èá ìðïñåßôå åðßóçò íá äåßôå ôéò ñõèìßóåéò óáò ìÝóù ôïõ
      <command>gconf-editor</command>, óôçí åíüôçôá
      <literal>apps/compiz</literal>.</para>
  </sect1>

  <sect1 id="compiz-troubleshooting">
    <title>Áíôéìåôþðéóç ðñïâëçìÜôùí ôïõ Compiz&nbsp;Fusion</title>

    <para>Ç áêüëïõèç åíüôçôá êáëýðôåé óõ÷íÝò åñùôÞóåéò ðïõ áöïñïýí
      ðñïâëÞìáôá êáôÜ ôçí åêôÝëåóç ôïõ
      <application>Compiz&nbsp;Fusion</application>.</para>

    <qandaset>
      <qandaentry>
	<question id="no-decorations">
	  <para>¸÷ù åãêáôáóôÞóåé ôï
	    <application>Compiz&nbsp;Fusion</application>, êáé ìåôÜ ôçí
	    åêôÝëåóç ôùí åíôïëþí ðïõ ðåñéãñÜöåôå, ôá ðáñÜèõñá ìïõ äåí Ý÷ïõí
	    ðëÝïí ìðÜñåò ôßôëùí êáé ðëÞêôñá åëÝã÷ïõ.  Ðïõ åßíáé ôï
	    ëÜèïò;</para>
	</question>

	<answer>
	  <para>Ôï ðéèáíüôåñï åßíáé üôé óáò ëåßðåé êÜðïéá ñýèìéóç óôï
	    <filename>/etc/X11/xorg.conf</filename>.  ÅëÝãîôå ðñïóåêôéêÜ ôï
	    áñ÷åßï, êáé åéäéêÜ ôéò êáôá÷ùñÞóåéò
	    <literal>DefaultDepth</literal>
	    êáé <literal>AddARGBGLXVisuals</literal>.</para>
	</answer>
      </qandaentry>

      <qandaentry>
	<question id="xorg-crash">
	  <para>¼ôáí åêôåëþ ôçí åíôïëÞ ãéá íá îåêéíÞóåé ôï
	    <application>Compiz&nbsp;Fusion</application>, ï X server
	    ôåñìáôßæåôáé áðüôïìá êáé åðéóôñÝöù óôçí êïíóüëá.  Ðïõ åßíáé ôï
	    ëÜèïò;</para>
	</question>

	<answer>
	  <para>Áí åëÝãîåôå ôï áñ÷åßï
	    <filename>/var/log/Xorg.0.log</filename>, èá äåßôå ðéèáíüí
	    êÜðïéá óöÜëìáôá êáôÜ ôçí åêêßíçóç ôïõ ×.  Ôï ðéï êïéíü óöÜëìá
	    åßíáé:</para>

	  <screen>(EE) NVIDIA(0):     Failed to initialize the GLX module; please check in your X
(EE) NVIDIA(0):     log file that the GLX module has been loaded in your X
(EE) NVIDIA(0):     server, and that the module is the NVIDIA GLX module.  If
(EE) NVIDIA(0):     you continue to encounter problems, Please try
(EE) NVIDIA(0):     reinstalling the NVIDIA driver.</screen>

	  <para>Áõôü óõíÞèùò óõìâáßíåé ìåôÜ áðü êÜðïéá áíáâÜèìéóç ôçò
	    åöáñìïãÞò <application>&xorg;</application>.  Èá ðñÝðåé íá
	    åðáíåãêáôáóôÞóåôå ôï port
	    <filename role="package">x11/nvidia-driver</filename> þóôå íá
	    ìåôáãëùôôéóôåß áðü ôçí áñ÷Þ êáé ôï Üñèñùìá glx.</para>
	</answer>
      </qandaentry>
    </qandaset>
  </sect1>
</article>