[Techno Peasant]

It is usually the driver that causes 10-bits to be necessary. Newer drivers are known to cause this. Check the list of supported drivers in the HDR section of this guide and try an older driver.

Oh strange, ok I'll do that. Thanks!

[Techno Peasant]

That fixed it, I downgraded back to the last know "good" driver mentioned in this thread: https://forum.doom9.org/showthread.php?t=176013

[Warner306]

Did it help at all with the banding? I know the P Series Quantum is known to cause some banding on gradients. Have you tried testing with the RTINGS.com 16-bit colored gradient image located in the bit depths section?

[voidwards]

I'm having some issues getting HDR to work with my new Denon AVR. I used to just go straight from my video card to my TV (Vizio M55-F0) and it worked fine. Now whenever I activate the Full UHD color option on my TV, black levels look awful -- they have a bunch of greenish squares flickering through them at all times. I'm not sure if it's one of my HDMI cables, or the receiver, or the MadVR settings. I know one of the HDMI cables is certified, the other is one I just received with a Dell monitor, so it may not be 18 gbps? Are there some specific configurations for HDR passthrough with a receiver?

[Warner306]

Try changing the color space in the GPU control panel to YCbCr. You could also experiment with the bit depth.

It could be an HDMI cable if the signal is flickering, but it seems more likely you are missing a setting in the menus for the AVR. Ensure it is set to straight passthrough and not applying any additional processing.

[voidwards]

Thanks, I found out that there was a glitch in my windows settings from earlier. For some strange reason HDR was turned on, but on the wrong monitor (my main display which doesn't support HDR). After turning this off, and updating my settings in MadVR with the Denon AVR, all seems well again.

[chrisssj2]

Im experiencing a weird thing:

When I stop using DSplayer and press "I" for movie info I see it's at 3840x2160p
Then I enable DSplayer end press I, and see 1920x1080 for this very same movie which I know to be 4k.
Wtf? Screenshot here: http://prntscr.com/neza9m


Also when I stop using DSplayer I get audio from my USB AUNE T1 MK Headphone amp.
When I use DSplayer (eventhough default or specific device is set to usb AUNE XMOS. I won't get audio from my Headset.

Though using audio without or with DSplayer with my Marantz Receiver does work.
For some reason it doesnt like my headphones?

[Warner306]

Did you set DSPlayer settings to be handled externally: Load from madVR active profile?

Press Ctrl + J to see what madVR says. If it is still incorrect, take a print screen of the madVR OSD.

For the audio, I would need a print screen of the DSPlayer settings page where the audio settings are located and a screenshot of the Windows sound settings panel that shows the list of audio devices.

[chrisssj2]

Did you set DSPlayer settings to be handled externally: Load from madVR active profile?

Press Ctrl + J to see what madVR says. If it is still incorrect, take a print screen of the madVR OSD.

For the audio, I would need a print screen of the DSPlayer settings page where the audio settings are located and a screenshot of the Windows sound settings panel that shows the list of audio devices.

Thanks for your reply I really appreciate it. I want to fix this so bad.

Windows Audio Devices:
http://prntscr.com/nfcir4
http://prntscr.com/nfciub

madVR OSD: 
http://prntscr.com/nfckb3 (so madVR says it's 3840x2160p while kodi says it's 1920x1080... what to believe? and why does kodi say that anyway)

When I try to change settings via madHcCtrl.exe and then start kodi and start film the settings are wiped somehow and it reverts to its old settings it was using.

Also the mouse moves very sluggish in fullscreen mode.
And I think sometimes there are still a few mini stutters in the playback(though it was way worse before I picked HW DXVA copy back, when it was still on auto.(could be imaging things, or it might just be the very first few seconds when starting the film)

RTX 2080, latest nvidia drivers
i5 8600k
Windows 10 1809
Kodi 17.6+ MPC BE 1.5.3

DSplayer settings:
http://prntscr.com/nfcmzu
http://prntscr.com/nfcnky
http://prntscr.com/nfcntw
http://prntscr.com/nfco4h (ps for some reason kodi is using lav filters 0.7.0.2 When I have 0.7.4.1 installed on my system.)
http://prntscr.com/nfcohv

MPC-BE settings:
http://prntscr.com/nfcoxd (all set to prefer) (and all of these lav settings seem to be 0.7.4.1 rather then the kodi ones 0.7.0.2 somehow..)
http://prntscr.com/nfcpi5
http://prntscr.com/nfcpop
http://prntscr.com/nfcpus
http://prntscr.com/nfcpyz (all unchecked)
http://prntscr.com/nfcq4y (all unchecked)
http://prntscr.com/nfcq9j (everything unchecked except DXVA VP9 and VP7/8/9)

madVR: Settings:
Tab 1:
http://prntscr.com/nfcxg8
http://prntscr.com/nfcxmb
http://prntscr.com/nfcxpk
http://prntscr.com/nfcxsm
http://prntscr.com/nfcxvn

Tab 2:
http://prntscr.com/nfcy2o
http://prntscr.com/nfcy6e
http://prntscr.com/nfcy8n
http://prntscr.com/nfcyb5

Tab 3:
http://prntscr.com/nfcyhw
http://prntscr.com/nfcymd
http://prntscr.com/nfcys6
http://prntscr.com/nfcyvg

Tab 4:
http://prntscr.com/nfcz5j (can't seem to dsiable present frame for every Vsync, always enables itself back)
http://prntscr.com/nfczdv
http://prntscr.com/nfczg3
http://prntscr.com/nfcziy
http://prntscr.com/nfczlw
http://prntscr.com/nfczow
http://prntscr.com/nfczrm
http://prntscr.com/nfczut

PS. HDR mode on my tv only activates when I select full screen exclusive in kodi --> DSplayer. In windowed mode it doesn't work.
http://prntscr.com/nfhkeg

[Warner306]

I'll have to respond to your reply later due to the number of items you posted. Most of your issues can likely be corrected by browsing the settings in the DSPlayer set up guide that is below this guide. You have DSplayer configured to override the madVR control panel and you are trying to bitstream to your headphone amp. You might even have to select the amp manually as the audio device in DSPlayer, but maybe not.

The issue with fullscreen exclusive mode and HDR mode engaging is likely down to the driver version you are using.

[chrisssj2]

I'll have to respond to your reply later due to the number of items you posted. Most of your issues can likely be corrected by browsing the settings in the DSPlayer set up guide that is below this guide. You have DSplayer configured to override the madVR control panel and you are trying to bitstream to your headphone amp. You might even have to select the amp manually as the audio device in DSPlayer, but maybe not.

The issue with fullscreen exclusive mode and HDR mode engaging is likely down to the driver version you are using.

Sure thing. I've been reading the forums a bit and it seems there are more people with the 2080/TI RTX cards that have stutters like me.
However they say enabling FSE (fullscreen exclusive fixed it for them)... For me windowed HDR doesn't even work so can't compare but at any rate I still have it with FSE...
Really annoying micro stutters.. just enough so you doubt there even there.. but enough to annoy you. You don't notice it with still standing images but when there is any motion you start to notice it overtime.

So I did a little trick: I downloaded the latest X64 lav filters and searched if I could find the lav filters kodi ds player uses. Found it. and did this:
http://prntscr.com/nfit9k

Renamed all the new files to the "old name" being used in the DS player - lav filter folder.
And replaced all files, one extra file in the ds player- lav filter folder though, called "libmfxsw64.dll" was unchanged. As no version of this file was on my latest lav filters.
Now my audio works on my usb Aune amp! DSplayer using "system default for audio" and kodi uses "direct sound default".
So that's another problem taking care off I guess?

Just the micro stutters left. (and the 1920x-1080p bug? Unless its purely visual bug of kodi, and madVR output is right about 3840x2160p)

[Warner306]

The trick of overwriting existing copies of LAV Filters is included the DSPlayer set up guide. It is also possible to use the external copies of LAV Filters installed in Windows if you use the filter rules provided at the end of the DSPlayer settings section.

For your remaining issues:

- Stuttering with RTX cards can usually be traced back to the video drivers. It is advised to download and run this utility. If that doesn't solve it, try one of the driver versions recommended in this thread:

https://forum.doom9.org/showthread.php?t=176013

- Slow mouse movement during video playback can be a consequence of playing movies at 24 Hz or is equally likely to be caused by overlaying Kodi's GUI over madVR's pre-rendered frame buffer. The frame buffer can cause menu navigation to be a little bit slower. Try reducing the number of frames presented in advance in both DSPlayer settings and the madVR control panel. This likely won't make navigation perfectly smooth, but it might improve it. Kodi is designed to be controlled by a remote, gamepad or tablet, so I wouldn't recommended using a mouse, anyways, because it is not meant to be used that way.

- Keep in mind, a small number of madVR settings are always controlled by DSPlayer, even if you configure madVR to be controlled externally. Check those few settings and ensure the madVR control panel matches. DSPlayer will always override the madVR control panel with its own settings. 

- The resolution shown in the madVR OSD should be taken as accurate. I don't know why the DSPlayer OSD would contradict this, but I would recommended ignoring the DSPlayer OSD and only using the madVR OSD in its place. There is far more technical information in the madVR OSD and it is always aware of its own output and will report accurate numbers. The DSPlayer OSD doesn't really provide any useful information, and I never use it.

[giulianoprs]

Hi Warner306, I was double-checking your beautiful guide and I noticed that every so often you change some settings, you update it, I wanted to ask you in the "trade qyality for performance" section of madVR I set as shown in the photo I attached, in your opinion it's enough good, right?
I'm still going full HD. My files are all 1920x1080p (I don't have a 4k HDR TV yet), my average and max renderings can go from 7 and 10 to a maximum of 17 and 20 (depending on the movie, I don't know why, but always h264 1080p files are).
Hello and thanks.

https://imgur.com/qGSgy3i

[Warner306]

The performance cost of dithering and debanding are very low, so those options are likely unnecessary.

[giulianoprs]

deselecting the first 2 (dithering and debanding) do I have improvements in the visual quality or in the performance of the gpu? is the third (don't rerender frames) important?