From: Tom Brown <tbrown@xxxxxxxxxxxx>
Sent: Jun 8, 2009 9:54 AM
To: frgeek-michiana@xxxxxxxxxxxxx
Subject: [frgeek-michiana] Re: Digital projectors and VL 5.9/6.0
One of the problems Chuq and I are running into is the laptop desktop
will display on the projector as expected including the video
application window (kplayer, xine, vlc) in which the video file is
running on the desktop. The video application window on the projector
displays its controls correctly, but the video playing inside the
application window is blank (black).
Tom
Mike Cook wrote:
On the Evo (and most recent laptops) the external display is treated
like a second monitor on a dual head setup. So you probably need to
set up a second display in Xorg.conf.
See:
http://ozlabs.org/~jk/docs/mergefb/
<http://ozlabs.org/%7Ejk/docs/mergefb/>
http://www.astro.umd.edu/~teuben/linux/laptop-display.html
<http://www.astro.umd.edu/%7Eteuben/linux/laptop-display.html>
http://forum.vectorlinux.com/index.php?topic=7019.0
It looks like most people use xrandr
<http://www.thinkwiki.org/wiki/Xorg_RandR_1.2> to do the deed.
I know that under Windows XP the external display (incl the composite
video output) is shown as a second display. I'll see what I can figure
out by Tuesday.
Mike
Tom Brown wrote:
Chuq couldn't get VL 5.9 on his Compaq Evo N600c to display a DVD
video on the projector at the public library, nor would it work on
our new Optoma projector. The video plays on the desktop but won't
display through the VGA port on the projector.
Is this caused by DRM crapware on the recordings? Is it a hardware
software problem with the Compaq Evo N600c? Is it VL 5/6?
---------------------------------------------------------------------------------------------
Mike and Imre:
Can you bring your Compaq N600c laptops to the warehouse Tuesday? You
have Ubuntu and Puppy installed on your systems. We'll see how they
handle video output to the projector.
---------------------------------------------------------------------------------------------
I tested a DVD on three laptops. Here are the findings.
1. Dell Inspiron B130 with VL 6.0
The LCD/DVD toggle function key combo doesn't work so the projector
must be connected to the laptop VGA port at boot up to display video
thru the port. This degrades the resolution of the image on the
desktop, but the the projected image seems OK, and the DVD plays.
2. Compaq Evo N600c with VL 5.9 Deluxe
The LCD/DVD toggle function key combo doesn't work so the projector
must be connected to the laptop VGA port at boot up to display video
thru the port. The DVD plays on the desktop, but the projected image
is blank. This happens on xine and kplayer.
3. Dell Latitude D600 with XP Pro
Everything works as expected.
Fr. Robert used a command line utility, xrandr, on his EeePC which
considerably improved results on the VGA port. I believe he has
Ubuntu installed on his EeeePC We should probably experiment with
xrandr our VL laptops.
Tom
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