diff options
Diffstat (limited to 'DOCS')
| -rw-r--r-- | DOCS/xml/en/video.xml | 56 |
1 files changed, 43 insertions, 13 deletions
diff --git a/DOCS/xml/en/video.xml b/DOCS/xml/en/video.xml index ef0534012a..4eb41e92fb 100644 --- a/DOCS/xml/en/video.xml +++ b/DOCS/xml/en/video.xml @@ -2483,19 +2483,49 @@ Of course the important thing is the TwinView part. <sect4 id="tvout-neomagic"> <title>Neomagic</title> <para> -Tested on a Toshiba Tecra 8000. Its TV output chip is a miserable crap. Avoid -if possible. -</para> -<para> -You must use <option>-vo vesa</option>. The tested chip was capable of 1.333333 -aspect ratio only, so be sure to use the <option>-x</option>, <option>-y</option> options and/or the -<option>-vf scale,crop,expand</option> filters if the box doesn't let you -enable TV output. Maximum resolution was 720*576 at 16bpp. -</para> -<para> -Known issues: VESA-only, 1.33333 limitation, image isn't always centered, -movie becomes 4bpp in every 10 minutes, and stays that way. Frequent hard -freezes, LCD display problems. +The Neomagic chip is found in a variety of laptops, some of them are equipped +with a simple analog TV encoder, some have a more advanced one. +<itemizedlist> +<listitem><simpara> + <emphasis role="bold">Analog encoder chip</emphasis>: + Tested on a Toshiba Tecra 8000. Its TV output chip is miserable crap. Avoid + if possible. + </simpara> <simpara> + You must use <option>-vo vesa</option>. The tested chip was capable of + 1.333333 aspect ratio only, so be sure to use the <option>-x</option>, + <option>-y</option> options and/or the + <option>-vf scale,crop,expand</option> filters if the box doesn't let + you enable TV output. Maximum resolution was 720*576 at 16bpp. + </simpara> + <simpara> + Known issues: VESA-only, 1.33333 limitation, image isn't always centered, + movie becomes 4bpp in every 10 minutes, and stays that way. Frequent hard + freezes, LCD display problems. + </simpara></listitem> +<listitem><simpara> + <emphasis role="bold">Chrontel 70xx encoder chip</emphasis>: + Found in IBM Thinkpad 390E and possibly other Thinkpads or notebooks. + </simpara><simpara> + You must use <option>-vo vesa:neotv_pal</option> for PAL or + <option>-vo vesa:neotv_ntsc</option> for NTSC. + It will provide TV output function in the following 16 bpp and 8 bpp modes: + </simpara> + <itemizedlist> + <listitem><simpara>NTSC 320x240, 640x480 and maybe 800x600 too.</simpara></listitem> + <listitem><simpara>PAL 320x240, 400x300, 640x480, 800x600. </simpara></listitem> + </itemizedlist> + <simpara>Mode 512x384 is not supported in BIOS. You must scale the image + to a different resolution to activate TV out. If you can see an image on the + screen in 640x480 or in 800x600 but not in 320x240 or other smaller + resolution you need to replace two tables in <filename>vbelib.c</filename>. + See the vbeSetTV function for details. Please contact the author in this case. + </simpara> + <simpara> + Known issues: VESA-only, no other controls such as brightness, contrast, + blacklevel, flickfilter are implemented. + </simpara> +</listitem> +</itemizedlist> </para> </sect4> </sect3> |