[Bug 15395] Problems with radeon M300 and external display

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=15395


Alex Deucher <agd5f at yahoo.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |NOTABUG




--- Comment #1 from Alex Deucher <agd5f at yahoo.com>  2008-04-07 15:07:54 PST ---
both screens are enabled.  Clone mode is the default setup.  Use xrandr to
enable dualhead:
xrandr --output VGA-0 --right-of LVDS
if the default desktop size is not big enough you'll have to add a virtual line
to the screen section of your config.
See this page for more info:
http://www.intellinuxgraphics.org/dualhead.html

When using the overlay with Xv, it can only be sourced to one crtc at a time so
it will only show up on one head.  you can switch which head the overlay is
sourced to using he XV_CRTC Xv attribute and a utility like xvattr.
xvattr -a XV_CRTC -v 1
or
xvattr -a XV_CRTC -v 0


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