Htpc resolution/scaling with projector

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33coupe

988 posts

Ultimate Geek

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#288305 19-Jun-2021 17:47

Hopefully this is the right place.

I've just noticed that when watching a 1080 movie on my PC (local or Netflix etc),
The 4k enhancement (pixel shift thing) on the Epson tw7100 is greyed out.

Watching the same movie on my ps4, the 4k enhancement is active and does change the picture somewhat.
I've disabled any upscaling feature on the Yamaha receiver, so it has to be the PC.

The PC resolution is set to 3840 X 2160 (recommended) which I'm guessing should be correct as any pics /videos at this res will be displayed correctly.

However if I have a 1080 video, I don't think the PC shouldn't be telling the projector it's a 4k signal.

Would anyone know how to change this please so that the Epson does any upscaling/pixel shifting stuff? I've tried a few things but to no avail.

Thank you

Talkiet

4793 posts

Uber Geek

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#2731127 19-Jun-2021 17:49

What refresh rate are you running at? Some of the upsampling doesn't work on higher frame rates...

Cheers - N

Please note all comments are from my own brain and don't necessarily represent the position or opinions of my employer, previous employers, colleagues, friends or pets.

Talkiet

4793 posts

Uber Geek

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#2731134 19-Jun-2021 17:54

Or this...

If you want the projector to upscale you'll need to set your PC up to output 1080P. Of course your software might already be upscaling to 4K.

Cheers - N

Please note all comments are from my own brain and don't necessarily represent the position or opinions of my employer, previous employers, colleagues, friends or pets.

ds01

6 posts

Wannabe Geek

#2731226 19-Jun-2021 21:43

33coupe: The PC resolution is set to 3840 X 2160 (recommended) which I'm guessing should be correct as any pics /videos at this res will be displayed correctly.
However if I have a 1080 video, I don't think the PC shouldn't be telling the projector it's a 4k signal.

If your PC resolution is set to 3840 X 2160, then your PC is putting out a 4K signal. As far as the PC is concerned, the projector is no different to a monitor. If you play a video in fullscreen, the player software will scale it appropriately before sending it to the display, and if you play it at 100% scale, it will only take up a quarter of the display and you'll see the desktop around it. If you want the projector to do its own upscaling, you need to reduce the PC resolution to 1920x1080.

33coupe

988 posts

Ultimate Geek

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#2731230 19-Jun-2021 23:10

Thanks for the quick replies and info.
I'm running at 60hz

I've just changed the output to 1080p on the PC bit it didn't any difference. I thought that would have fixed it as well. Hmmm