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Re: vlc-playing DVD won't display on external monitor



On Thu, 23 Oct 2008, Robert P. J. Day wrote:

Quoting "Robert P. J. Day" <rpjday crashcourse ca>:

 ok, as a followup to my previous post, i slapped f9 on
my inspiron, then VLC and associated RPMs, popped in a DVD,
it plays nicely on the laptop.

 then, connected an external (samsung WUXGA) flat-panel
monitor via DVI, and the entire laptop display is reflected
nicely on the monitor *except* for the actual DVD image in
the VLC window -- that just shows up as blank, either in
regular or fullscreen mode (in fullscreen mode, the entire
external display is blank, even while the movie is playing
on the laptop).

 i'm no expert at video so, somehow, the DVD image is
not being passed out on DVI, while everything else is.
thoughts?  is there a VLC setting to tweak this?  this is
a dell inspiron 9200 so it's a fairly old system -- at
least a couple years.  but until now, running external
displays off that DVI port has worked just fine.  so
why is the DVD video content being treated this way?

I thhink that part of the problem is that the laptop is exporting a
framebuffer and the DVD image isn't going through that frame buffer.
Does the laptop use hardware acceleration?

When I tried to xwd an mplayer image,
there was just a single color where the image should have been.
Anyone know how to screendump from mplayer without
guessing the time or making multiple images?

ok, i just realized what the problem is -- the onboard
video simply isn't powerful enough to display the playing
movie both on the laptop display and on the external display,
so i simply need to disable the laptop display.  and one
would think this would be easy -- there is a blue "CRT/LCD"
on F8, leading me to conclude that a simple Fn/F8 should do
it.

sadly, that key combo has no effect.  how odd, since it's
*exactly* what i want to do -- disable onboard video and
drive external video.  i will now google, but if someone knows
how to get that on an inspiron 9200, i am *so* interested
in hearing it.

--
Michael   hennebry web cs ndsu NoDak edu
"Pessimist: The glass is half empty.
Optimist:   The glass is half full.
Engineer:   The glass is twice as big as it needs to be."


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