Document xvidix pixmap corruption issue and known workarounds.

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@8030 b3059339-0415-0410-9bf9-f77b7e298cf2
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ranma 2002-11-02 00:27:57 +00:00
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<UL>
<LI>You can use standalone video output driver: <CODE>-vo xvidix</CODE><BR>
This driver was developed as X11's front end to VIDIX technology. It
requires X server and can work only under X server.</LI>
requires X server and can work only under X server. Note that, as it
directly accesses the hardware and circumvents the X driver, pixmaps
cached in the graphics card's memory may be corrupted. You can prevent
this by limiting the amount of video memory used by X with the XF86Config
option "VideoRam" in the device section. You should set this to the amount
of memory installed on your card minus 4MB. If you have less than 8MB of
video ram, you can use the option "XaaNoPixmapCache" in the screen section
instead.</LI>
<LI>You can use VIDIX subdevice which was applied to several video output
drivers, such as:<BR>
<CODE>-vo vesa:vidix</CODE> (<B>Linux only</B>) and <CODE>-vo fbdev:vidix</CODE></LI>