<sect3>

	<title>Adding a Widescreen Flatpanel to the Mix</title>

	<indexterm><primary>widescreen flatpanel configuration</primary></indexterm>

	<para>This section assumes a bit of advanced configuration knowledge. 

	  If attempts to use the standard configuration tools above have not

	  resulted in a working configuration, there is information enough

	  in the log files to be of use in getting the setup working. 

	  Use of a text editor will be necessary.</para> 

	<para>Current Widescreen (WSXGA, WSXGA+, WUXGA, WXGA, WXGA+, et.al.)

	  formats support 16:10 and 10:9 formats or aspect ratios that can 

	  be problematic. Examples of some common screen resolutions for 

	  16:10 aspect ratios are:</para>

	<itemizedlist>

	  <listitem><para>2560x1600</para></listitem>

	  <listitem><para>1920x1200</para></listitem>

	  <listitem><para>1680x1050</para></listitem>

	  <listitem><para>1440x900</para></listitem>

	  <listitem><para>1280x800</para></listitem>

	</itemizedlist>

	<para>At some point, it will be as easy as adding one of these 

	  resolutions as a possible Mode in the Section "Screen" as such:</para>

	<programlisting>Section "Screen"

Identifier "Screen0"

Device     "Card0"

Monitor    "Monitor0"

DefaultDepth 24

SubSection "Display"

	Viewport  0 0

	Depth     24

	Modes     "1680x1050"

EndSubSection

EndSection</programlisting>

	<para><application>&xorg;</application> is smart enough to pull the 

	  resolution information from  the widescreen via I2C/DDC information

	  so it knows what the monitor can handle as far as frequencies

	  and resolutions.</para>

	<para>If those ModeLines do not exist in the drivers,

	  one might need to give <application>&xorg;</application> a little hint.

	  Using <filename>/var/log/Xorg.0.log</filename> one can extract 

	  enough information to manually create a ModeLine that will work.

	  Simply look for information resembling this:</para>

	<programlisting>(II) MGA(0): Supported additional Video Mode:

(II) MGA(0): clock: 146.2 MHz   Image Size:  433 x 271 mm

(II) MGA(0): h_active: 1680  h_sync: 1784  h_sync_end 1960 h_blank_end 2240 h_border: 0

(II) MGA(0): v_active: 1050  v_sync: 1053  v_sync_end 1059 v_blanking: 1089 v_border: 0

(II) MGA(0): Ranges: V min: 48  V max: 85 Hz, H min: 30  H max: 94 kHz, PixClock max 170 MHz</programlisting>

	<para>This information is called EDID information. Creating a 

	  ModeLine from this is just a matter of putting the numbers in the 

	  correct order:</para>

	<programlisting> ModeLine &lt;name&gt; &lt;clock&gt; &lt;4 horiz. timings&gt; &lt;4 vert. timings&gt;</programlisting>

	<para>So that the ModeLine in Section "Monitor" for this example 

	  would look like this:</para>

	<programlisting>Section "Monitor"

Identifier      "Monitor1"

VendorName      "Bigname"

ModelName       "BestModel" 

ModeLine        "1680x1050" 146.2 1680 1784 1960 2240 1050 1053 1059 1089 

Option          "DPMS"

EndSection</programlisting>

	<para>Now having completed these simple editing steps, X should start

	  on your new widescreen monitor. 

      </sect3>