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[boozemun]

Can someone explain why x265 movies played back through my computer directly to my Sony HDR TV have all these artifacts?

I have gone through everything from drivers to MadTV settings.

Video card is ASUS GTX 1080 with 8 GB of RAM. Computer is ASUS TUF Mark II motherboard with 32 GB of RAM and latest Windows 10, Gen 7 or 8 INtel chip.

When played back through DLNA through my OPPO 205 colors are stunning and artifacts are gone, even SDR.

I thought it was just that the OPPO is so superior I just didn’t use the computer, but it is in the shop and I used DLNA through Apple TV Gen 4 and Infuse app results are almost as good as the OPPO.

Computer and DLNA images attached: https://share.icloud.com/photos/02CKJSY8TmHVa6j_cFwndwElg#Chicago,_IL

1 DLNA
2 Computer
3 Computer
4 DLNA

[JimH]

Try using Red October HQ or Standard, but with no changes.  If you're using your own version of madVR or making changes to it, that could contribute.

[boozemun]

Thanks tried Red October HQ. Quality Best results are the same.

[JimH]

Red October Standard?

[boozemun]

Same

[tij]

when playing RO HQ ... press Ctr+j for OSD ... take photo and post it

[boozemun]

Ctr + j checks for updates

[tij]

Are you using Red October HQ (madVR) ... full screen? ... ctr+J under madVR in full screen is supposed to bring OSD for troubleshooting

[Manfred]

I noticed in your screenshot that there are 10 bits and on top 12bits, RGB full.

Could it be that you have some mismatch between RGB vs. YCbCr. setttings.

In the doom9 forum you can find an article about that:

"Which output format (RGB vs YCbCr, 0-255 vs 16-235) should I activate in my GPU control panel?"

http://forum.doom9.org/showthread.php?t=146228

[tij]

the screen shot with madvr osd is mine ... posted it so boozeman knows what it should look like

[tij]

looking at screenshots posted by @boozeman ... looks like blacks are elevated

guessing here .. MC and pc RGB range is mismatch ... MC probably outputs 0-255 ... NVIDIA setting is probably 16-255 ... causing blacks to be elevated and artifacts which notmally would be too dark to show up to be highlighted

Check nvidia Control Panel ... [change resolution] -> [apply the following settings] ... make sure to sekect “use nvidia color settings” ... make sure “output dynamic range” is set to “full”

[Hendrik]

Do you have hardware decoding activated, on the Video settings page? Does toggling it make any difference?

[boozemun]

Getting somewhere turning off hardware decoding seemed to work but if I move the mouse the screen changes to the artifacts if I move it again it goes away, like the screen is auto adjusting. As far as the NVIDIA control panel I can only use FULL for Output Dynamic Range if I change the Output color format to RGB as opposed to 422, 444, or 420 I think I usually use 422 and turn on 10 bit color depth my TV is only HDR 10. I take that back if I choose RGB and then FULL and apply it just goes back to 422 and LImited, 32 bit color depth and 10 bit Output color depth.

[boozemun]

I can get it to stay on RGB and FULL but then 10 or 12 bit output color depth is unavailable.

[Hendrik]

You cannot output 4k, RGB, 10/12-bit at the same time, thats too much bandwidth for HDMI 2.0. Thats what we need HDMI 2.1 for, which is coming ...soon, maybe?
In any case with madVR 8-bit should be just fine, and avoids many problems.

HDR output on a PC can still be rather finnicky, unfortunately we don't have quite all the answers yet.

[boozemun]

OK I thought it had to be on 10 bit to get HDR and I thought RGB was the lowest color setting but apparently not. I set at RGB FULL 8 bit Hardware decoding off and HDR movies seem to play fine as well the artifacts are gone on black areas. My only problem now is the VERY ANNOYING thing that happens when I move the mouse the whole screen goes haywire for about 2 seconds, I thought Display settings turning off Automatic change was the answer but it still happens just for less time.

[tij]

You can use RGB with 4K and 10/12 bit ... BUT at 23.97fps only 30fps and lower (which is fine for movies that runs at 23.97)  ... and need darn good HDMI cable

MadVR processes at RGB ... so doing anything less than rgb or 444 is waist of MadVR effort ... as it will be scaled down to (say) 422 ... and TV will scale it back to 444 (point of doing MadVR is u want all scaling done by madVR)

When you move mouse while watching movie the screen will flicker as MC exits “exclusive” screen mode and enters “windowed” mode to draw your cursor ... keyboard is this best way to navigate (mine flickers once ... running 1070)

That ctr+J madVR stats can help a lot (can turn off MC keyboard shortcuts just to get it)

 

[Manfred]

For my environment I made the following picture: