Devices > Video Cards, Monitors, Televisions, and Projectors

Video is window boxed on my new projector

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curiousMonkey:
I am using MC 26 with a 1920x1080 Windows desktop. I set the refresh rate to 59Hz so that transitioning to a DVD file would be faster than a film. I am not sure any of this is relevant to my issue but I want to provide as much information as I can.

This is my second problem transition from a Sony VPL-VW285 to a JVC NX7 projector. Everything was working fine but on two separate occasions I noticed that the movie image did not reach the edge of the screen. This creates a slight window box effect leaving a thin black border on the left and right side of the active image, which is also letterboxed. The first time, something must have changed because the problem disappeared, but it reappeared this evening.

I don't see the problem playing back a 4K bluray disc so there must be some video setting in JRiver I need to tweak.

I looked through the Video settings but I don't see anything obvious aside from backing down to Red October Standard from Red October HQ. Since the problem disappeared in the past without making this change, I thnk the problem lies elsewhere. As far as I can recall, before the problem reappeared I had not changed any JRiver settings.

Can anyone think of a video setting that would introduce this behavior? I played around with various desktop resolutions (4096x2160, 3840x2160) and refresh rates but the problem remains.

curiousMonkey:
I turned my projector back on and ran a few experiments.
Changing Red October from HQ to Standard had no effect.

If the desktop display frame rate is 60Hz and autoChange is OFF in JRiver, the full image is displayed.
If I turn on autoChange, the image is window boxed.

However I also see the same window boxing when I set the desktop to 24p or 23p and autoChange is OFF.
I will attach some screen shots of the display data I captured on the screen.

tij:
I don't see boxing on any of posted images. When you took those images, which one of them showed be boxing on the screen? First one?

When you set your desktop to 23 or 24 ... does desktop itself is boxed (not movie but actual Windows desktop)?

EDIT: isn't NX7 a 4K projector? you let NX7 do scaling?

curiousMonkey:
I realize it is difficult to see the window boxing. My real intent with the photos was to show the video settings in various modes.

The first picture shows the window boxing. If you look at the screen under the text you can see a black region. That region is not present in the second photo where the image goes under the text completely to the edge of the screen.

I only see window boxing when I launch the movie in MC. The projector is 4k so everything will be upscaled.

zybex:
I honestly can't see what you're talking about. Do you see black borders on the left/right? I don't. The 3 images have the same resolution, they all strech to the left/right with no black border, and they all have the same height of vertical black bars due to aspect ratio.

The first and third images have 1 extra line of text ("repeated frames") so the text ends further down than on the second image. It's hard to tell because the frame is almost black on the left, but there are a few non-black pixels near the left edge, and on the right the image stretches to the border just fine.

What exactly is wrong?

If the screenshots don't show a black border, but you do see it on the projected image, then it's likely some setting on the projector itself.

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