Two Monitors, One Does Not Render Vid Clips?

[(PeteCresswell)]

I've got two monitors.

If I open something like an on-line TV tuner, the picture is
rendered a-ok on one monitor, but if I slide the window across to
the other monitor, the picture disappears.

One Monitor, All Visible: http://tinyurl.com/4thxcz8

Two Monitors, Half Not Visible: http://tinyurl.com/45h7apk

Can anybody say what is going on?

I'm guessing it's something to do with CODECs but, aside from
being able to spell the acronym, I know nothing.

 

[(PeteCresswell)]

Per Hot-text:

Get a HD TV tuner for a HD Monitors!

Doesn't compute.

The symptoms are the same for .AVIs, .MPEGs, .WMVs and so-forth -
although the problem does not manifest when they are played with
VLC Media Player.

 

[Paul]

I've got two monitors.

If I open something like an on-line TV tuner, the picture is
rendered a-ok on one monitor, but if I slide the window across to
the other monitor, the picture disappears.

One Monitor, All Visible: http://tinyurl.com/4thxcz8

Two Monitors, Half Not Visible: http://tinyurl.com/45h7apk

Can anybody say what is going on?

I'm guessing it's something to do with CODECs but, aside from
being able to spell the acronym, I know nothing.

These are some terms I've run into.

VMR7, VMR9, Overlay plane, only one available in some
cases. (Two display channels but only one overlay plane?)

Full Screen Video Mirroring is disabled on Nvidia cards.
Your video isn't full screen though. So it could be
an overlay problem instead.

http://www.howtofixcomputers.com/fo...lscreen-video-mirroring-video-out-142422.html

Check the video player application, and see what rendering
options it has (VMR7, VMR9, Overlay etc).

Paul

 

[Patok]

I've got two monitors.

If I open something like an on-line TV tuner, the picture is
rendered a-ok on one monitor, but if I slide the window across to
the other monitor, the picture disappears.

One Monitor, All Visible: http://tinyurl.com/4thxcz8

Two Monitors, Half Not Visible: http://tinyurl.com/45h7apk

Can anybody say what is going on?

I'm guessing it's something to do with CODECs but, aside from
being able to spell the acronym, I know nothing.

I agree with Paul. The issue is the interaction of the rendering surface of
your player, and the configuration of your Nvidia driver. The codecs almost
certainly have nothing to do with the issue.
The first thing you can try is change the rendering surface of the player
(which one is it?). Also, what Nvidia driver is installed?

 

[(PeteCresswell)]

Per Paul:

Full Screen Video Mirroring is disabled on Nvidia cards.
Your video isn't full screen though. So it could be
an overlay problem instead.

http://www.howtofixcomputers.com/fo...lscreen-video-mirroring-video-out-142422.html

Check the video player application, and see what rendering
options it has (VMR7, VMR9, Overlay etc).

I'm going to take a SWAG and say that "Full-Screen" refers to a
single window expanded to occupy two monitors.

Moot in my case. All I want to do is have the option to run a
video on either monitor.

What I did find was a distinction between "DirectDraw", "GDI",
and "Direct3D9".

Selecting the first two caused the problem: video rendered on one
monitor, but not the other.

Selecting Direct3D9, however, enabled the video to render on
either screen using CorePlayer - which is my preferred playback
tool

Poked around in VLC Media Player, but could not find a dialog
that offered such choices - but that's moot too bc VLC does the
job already.

Thanks!

 

[(PeteCresswell)]

Per Patok:

The first thing you can try is change the rendering surface of the player

Are "DirectDraw", "Direct3D9", and "GDI" rendering surfaces?

 

[Patok]

Per Patok:

Are "DirectDraw", "Direct3D9", and "GDI" rendering surfaces?

In a sense, yes, because each of them is a different rendering method. That's
what I meant. Are you saying that your player offers the possibility to use GDI?
That's weird; I thought it was supposed to be slow and unsuitable for video.
(Oh. I see VLC offers that too. Heh.)
But yes, the different methods are GDI, DirectDraw, DirectX, DirectX3D (I
don't know what that "Direct3D9" is, I don't have it), the Overlay Mixer, VMR,
and OpenGL. In my experience the Overlay mixer is the best, because it is
supported directly by the Nvidia driver, but I seem to remember some problems
with a second monitor (I don't have one hooked up right atm, so can't check).
But definitely one of the surfaces, depending on the Nvidia driver
configuration, was not displaying on the second monitor. The last time I had
that problem when I was playing a video on a connected HD TV, and the video was
showing, but not the subtitles.

 

[pjp]

I've got two monitors.

If I open something like an on-line TV tuner, the picture is
rendered a-ok on one monitor, but if I slide the window across to
the other monitor, the picture disappears.

One Monitor, All Visible: http://tinyurl.com/4thxcz8

Two Monitors, Half Not Visible: http://tinyurl.com/45h7apk

Can anybody say what is going on?

I'm guessing it's something to do with CODECs but, aside from
being able to spell the acronym, I know nothing.

Been there with an old dual head card, e.g. video would only render on the
primary display. It was a hardware/software limitation at the time. I've
used many newer dual-head video cards since and none have had the same
problem.

Full solution is likely to replace card with a newer one. Did that for
wife's pc not that long ago and provided you don't need top notch gaming
performance (which she didn't) the card was real cheap (< $50). Check the
box and what dongle cable comes with it. Some cards (my nVidia 6800) only
has a dvi style port on it and the dongle cable splits that into two vga
outs. Other cards likely do similar so having the dongle cable YOU need is a
must and from experience only way to be sure of it is to open the box and
check (I've seen two otherwise identical boxes with different dongle cable
included). Oh, and the dongle cables are next to impossible to find and buy
after the fact.

Before doing that though, I'd first check your current video card driver
specific settings. You may find it can do a full screen video on the
secondary monitor even if it can't do a overlay window. I assume doing full
screen changes how it uses the underlying hardware, resources required etc.
etc.

 

[(PeteCresswell)]

Per Patok:

(I
don't know what that "Direct3D9" is

Neither do I... nor GDI nor DirectDraw... -)

But switching from DirectDraw to Direct3D9 seems to do the trick
in the problem application (CorePlayer Pro). VLC media player
seems to do it all on it's own - which is good bc I can't find
anything in it that allows setting....

SageTV, OTOH, is still out in the cold - pending my figuring out
if/where the relevant settings dialog is...