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Old Yesterday, 16:42   #51541  |  Link
mv
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Quote:
Originally Posted by huhn View Post
are you using d3d11 for decoding?
Same issue with D3D11 or DXVA Copy-Back. But with D3D11 decoding de-interlacing is not enabled for some reason neither in madVR or LAV so switched to DXVA Copy-Back for now.
Tried to encrease buffer size in LAV splitter but thats is not the case.
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Old Yesterday, 16:52   #51542  |  Link
huhn
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d3d11 doesn't support deinterlancing that'S why i ask.
can you make a screen of the OSD?
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Old Yesterday, 19:27   #51543  |  Link
Redemption80
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Nvidia users who use custom modes, i know while most people were having issues with the driver rejecting this mode, some were not.

What are other Nvidia users doing now? I pretty much stuck with 390.77 for 6 months but out of curiosity i have been testing 398.11 and again can only use the EDID timings. Saying that, while my OCD dislikes the fact i have went from drops every few days to every 12mins, if im honest i can't say i actually noticed them over the course of average TV show.

Anyone who knows anything about drivers think this is a permanent change to the drivers that we will have to just live with?

Last edited by Redemption80; Yesterday at 19:34.
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Old Yesterday, 19:50   #51544  |  Link
nevcairiel
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Create modes in the NVIDIA control panel, that works on all driver versions for me.
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Old Yesterday, 20:11   #51545  |  Link
veggav
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Found this statement:

"My main problem with a 4:2:2 transport over HDMI is that a PC is always RGB, and a 4:2:2 transport is YCbCr, so when you play something on a PC the player converts the YCbCr file to RGB, then the graphics card converts it to 4:2:2 YCbCr for HDMI, and the TV again converts it to RGB, its two extra conversions that may (and do) incur extra loss on the image, and has the potential for mis-matching conversion matrices even throwing off your colors entirely."

Is this accurate?
It's impossible to have true YCbCr on PC?
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Old Yesterday, 20:24   #51546  |  Link
huhn
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not perfectly accurate but close enough.

you can't use YCbCr from source to HDMI on a PC.
the solution is simple just use RGB output.
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Old Yesterday, 20:24   #51547  |  Link
nevcairiel
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Quote:
Originally Posted by veggav View Post
Is this accurate?
It's impossible to have true YCbCr on PC?
This is correct. PCs at least on any configuration that can run madVR are always RGB.
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Old Yesterday, 20:50   #51548  |  Link
veggav
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Thanks
This clears some stuff for me to understand

If I set nvidia control panel to "let colors settings be set by application" I believe this will set color based on my TV edid.

I know about chroma subsampling test to see if it' 4:4:4 or 4:2:0.

Is there a way to know if in this situation my pc is using RGB or YCbCr?
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Old Yesterday, 21:05   #51549  |  Link
huhn
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just set it to RGB it's not much work.
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Old Yesterday, 22:42   #51550  |  Link
mv
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Quote:
Originally Posted by huhn View Post
d3d11 doesn't support deinterlancing that'S why i ask.
can you make a screen of the OSD?
Sure -> https://imgur.com/a/sxqGvCx
That's after ~10-15minutes after the IPTV channel does start playing - which is one time out of 3-5. In most cases is stops after several seconds.
Other channels seem pretty same when looking at OSD but still somehow different because they do start playing without issues.
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Old Yesterday, 23:21   #51551  |  Link
huhn
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nothing deviantly wrong with the OSD.
the only small things i see is the 6-8 queue for decoding and the presentation queue.
the DXVA max spikes look scary.

when deinterlancing is fail does it look the same?
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Old Today, 00:28   #51552  |  Link
Redemption80
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Quote:
Originally Posted by nevcairiel View Post
Create modes in the NVIDIA control panel, that works on all driver versions for me.
Thanks, never even thought to do try that again

Not that i had an issue sticking with 390.77 as it was working fine for the games i play, but didn't want to stick with it forever and these days video playback and MadVR takes higher priority that gaming for me.
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Old Today, 01:27   #51553  |  Link
Clammerz
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Quote:
Originally Posted by veggav View Post
If I set nvidia control panel to "let colors settings be set by application" I believe this will set color based on my TV edid.
No, that option lets you either override application colours using the sliders below that option, or leaving the colours as the application sends them to the driver.
Strongly suggest you leave that option as "application".

Quote:
Originally Posted by veggav
Is there a way to know if in this situation my pc is using RGB or YCbCr?
What your computer will send over the wire will be whatever you select in the Nvidia control panel "Change Resolution" section under "Output Format".
Strongly suggest you leave it as RGB.
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Old Today, 06:49   #51554  |  Link
x7007
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Will there be new Madvr soon ?
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Old Today, 12:40   #51555  |  Link
ryrynz
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Yes, some time this year.
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