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Old 9th October 2020, 13:26   #2001  |  Link
SamuriHL
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Curious if the drivers expose any additional functionality over the 2xxx cards. I don't think we've yet seen anyone get their hands on a card so it'll be nice to see if the drivers are stable for them, what functionality hdmi 2.1 exposes in the driver if any, and the performance in madvr. Can't wait to see that kind of info.

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Old 10th October 2020, 22:52   #2002  |  Link
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Originally Posted by Manni View Post
I've only tested 8bits RGB with 456.38 (Studio / Standard) as that's what I use and don't have the time to do any other tests at the moment, but at least with that I can confirm that HDR works fine (with nvAPI) and that if using passthrough the HDR10 metadata is sent properly.

I don't know how it behaves in 12bits or in YCC.

[EDIT: Also I'm still using CRU so I haven't tested native frame rate.]

I don't have the issue of the "double switch" for HDR. It switches seamlessly between SDR and HDR, or SDR BT2020 and HDR passthrough.

So at least at first sight, it seems good to go

I'll post if I find any issue.

My full config is in my sig, YMMV.
I experienced issues with this driver and the following ones. It now outputs weird null HDR metadata and I can't get auto SDR tonemappint without forcing passthrough first then going to SDR tonemapping.

I tried most drivers before that and had to revert all the way back to 442.74 to get predictable, reliable HDR<>SDR auto switch with NV API in madVR. Even 442.92 had some issues.

Not sure why the more recent drivers stopped working, maybe an OS update?

This is with 1909 and a GTX 1080ti (full config in sig). YMMV.
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Old 11th October 2020, 06:48   #2003  |  Link
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Quote:
Originally Posted by Manni View Post
Even 442.92 had some issues.
Not sure why the more recent drivers stopped working, maybe an OS update?
This is with 1909
Like this? I'm on 1809, so it seems it's not the newer windows.
And what about this audio issue?
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Old 11th October 2020, 08:52   #2004  |  Link
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Like this? I'm on 1809, so it seems it's not the newer windows.
And what about this audio issue?
I can’t remember exactly, I think it’s more that when you start an HDR clip, by default it is outputting HDR passthrough here, and you have to manually switch to SDR tonemapped. Unlike some of the newer drivers, you can get the right mode manually, while some of the newer drivers are stuck in this weird NULL hdr metadata mode that prevents the right mode from being selected (I use a Maestro to switch calibration automaticallly, so I need no HDR metadata for my SDR tonemapped calibration to be applied.

I don’t have these audio issues but I use HDMI bitstream as I need it for immersive sound.

Bottom line is that here, with 1909 and a GTX 1080ti, only 442.74 or earlier works fully as expected (and I’ve only tested RGB 8bits).

I use CRU so the better refresh rate of the new drivers doesn’t make a difference.
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Last edited by Manni; 11th October 2020 at 08:55.
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Old 11th October 2020, 11:20   #2005  |  Link
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That's a bummer. Please let me know if I should update the Nvidia section.
If you have a spare SSD laying around, would be nice if you could set up Windows 10 2004 fresh on it and test the new driver. Would be interesting if the driver behaves the same on 2004. You can just put the old one back in the pc and the pc will work as nothing would had happend. I did this before on my own.
I know it will be some time, but what what do we all for testing our stuff ;-)
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Old 11th October 2020, 11:31   #2006  |  Link
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That's a bummer. Please let me know if I should update the Nvidia section.
If you have a spare SSD laying around, would be nice if you could set up Windows 10 2004 fresh on it and test the new driver. Would be interesting if the driver behaves the same on 2004. You can just put the old one back in the pc and the pc will work as nothing would had happend. I did this before on my own.
I know it will be some time, but what what do we all for testing our stuff ;-)
I don't have the time to use another drive at the moment, but I'm probably going to cancel my 3090 order as it looks like their ETA of the 5th was BS and I'm close to number 100 in a waiting list that doesn't move. Plus, they have already charged my VISA! This is SCAN in the UK, and I'm not impressed by the way they handle this. If you don't know when a product ships, don't charge the customer!

So I think I'm going to cancel next week and wait until we know more about the 3080ti as it might be on TSMC 7nm according to rumours, which might make it a bit less power hungry than the 3090. I don't really believe they'll move the already released card to 7nm, but that's still a slight possibility.

This means that I might attempt to upgrade the OS anyway, but it's unlikely I'll find the time until early November due to work. I'll let you know as soon as I can test this. I image my drives before any big change, so I can always go back if there are more issues with 2004 and no improvement.

For now, I would update the nVidia session and mark 442.74 as last known fully working driver re HDR for GTX and 1909 or previous, at least if your video chain detects content and automatically switches to the correct calibration (HD Fury Vertex/Diva/Maestro or new JVCs). Unless anyone confirms a more recent driver works, we can't rule out something in my config for course.
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Last edited by Manni; 11th October 2020 at 11:38.
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Old 11th October 2020, 13:48   #2007  |  Link
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I'll check later this morning to see if they broke it again. They had fixed that in one of these recent driver versions. I'll need to find a working hdmi cable to hook the integral back up.

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Old 11th October 2020, 14:41   #2008  |  Link
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Originally Posted by SamuriHL View Post
I'll check later this morning to see if they broke it again. They had fixed that in one of these recent driver versions. I'll need to find a working hdmi cable to hook the integral back up.

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You have an RTX GPU, my report is only about GTX (1080ti).

I don't think the issue is the same with more recent GPUs (or maybe a more recent OS).
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Old 11th October 2020, 16:44   #2009  |  Link
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Quote:
Originally Posted by Manni View Post
You have an RTX GPU, my report is only about GTX (1080ti).

I don't think the issue is the same with more recent GPUs (or maybe a more recent OS).
I can't imagine it'd be different between GTX and RTX on the HDR metadata. I could be wrong I suppose but I've not checked the last 2 driver versions since they fixed it. Still trying to hunt down a working HDMI cable in the house somewhere but I'll check anyway. Then we'll know for sure if it's different.

EDIT: Found a working cable. Yes, on build 19042 of Windows 10 I am indeed getting proper metadata with 456.71. So there does appear to be a difference after all.
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Last edited by SamuriHL; 11th October 2020 at 16:49.
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Old 11th October 2020, 17:17   #2010  |  Link
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Quote:
Originally Posted by brazen1 View Post
456.71 is performing better than I anticipated.
The audio problem no longer exists! (Stereo vs Multichannel dependent on AVR On/Off state). This was problematic for years. I no longer have to modify the installation with an older HDAudio driver.
Quote:
Originally Posted by Manni View Post
Bottom line is that here, with 1909 and a GTX 1080ti, only 442.74 or earlier works fully as expected (and I’ve only tested RGB 8bits).
Quote:
Originally Posted by Manni View Post
mark 442.74 as last known fully working driver re HDR for GTX and 1909 or previous, at least if your video chain detects content and automatically switches to the correct calibration (HD Fury Vertex/Diva/Maestro or new JVCs).
OK, thanks, I went back as well to 442.74 + hdmi audio from 456.71 (by copying over "HDAudio" directory), I'll report back in a week if all is good here.

I noticed 1 issue (?) straight away, that I haven't before (not even with 442.92 SD):
- 12bit nv output
- madvr OSD is enabled
- mpc-be/hc fullscreen window: madvr reports 10bit
- but when seekbar comes up at the bottom: madvr reports only 8bit!

I don't remember whether it worked like this or not previously.

Quote:
Originally Posted by Manni View Post
I don’t have these audio issues but I use HDMI bitstream as I need it for immersive sound.
Cheers, then I guess it's my Win10 version
The issue with HDMI audio is:
- you have setup speaker config (e.g. to 5.1) and properties (e.g. to 41kHz) of NV HDMI device in Windows (under Sound in CP)
- if you click on Configure again and cancel the dialog (or hit escape) then it reverts back to default (!) stereo 48kHz config

This doesn't happen when you do the same with the Properties dialog.
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Old 11th October 2020, 19:21   #2011  |  Link
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As I said, I only tested 8bits RGB
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Old 11th October 2020, 20:19   #2012  |  Link
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I'm only using RGB 8 bit myself these days.
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Old 11th October 2020, 20:25   #2013  |  Link
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I'm only using RGB 8 bit myself these days.
I was replying to Chros
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Old 11th October 2020, 20:25   #2014  |  Link
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I know you were. I'm just agreeing it's the way to go.
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Old 11th October 2020, 20:31   #2015  |  Link
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I disagree, 12bit is the ultimate solution
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Old 11th October 2020, 22:18   #2016  |  Link
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I had to make an image of my SSD so I thought I'd give a quick try to 2004.

Bad news: the behaviour is the same with my 1080ti. 456.71 causes a fake HDR mode that prevents the SDR calibration to be selected.

456.71 was installed after the update, so I tried a full clean install with CRU, same results.

I had to revert to 442.74 to get the expected behaviour.

So the OS has nothing to do with this.

The good news (for me) is that the OS update finally resolved my super long start for the nVidia cPanel. I'm back to normal start time of a few secs.

So unless I find some unseen downsides, it looks like I'm going to stay on 2004. I'll update the thread if it wasn't the case.

Again, this is only for GTX as I haven't tested the new drivers with GTX.

I have also only tested RGB 8bits
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Old 11th October 2020, 22:19   #2017  |  Link
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The often unnecessary solution you mean.
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Old 11th October 2020, 22:22   #2018  |  Link
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The often unnecessary solution you mean.
No idea what you mean.
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Old 11th October 2020, 22:39   #2019  |  Link
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That's seriously crazy that you have such wildly different HDR results on the 1080ti than I do on my RTX. What the hell is nVidia doing lately.....sigh
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Old 11th October 2020, 22:40   #2020  |  Link
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No idea what you mean.
Was a reply to chros

Manni did you use madVRs calculated values with CRU for 24hz?
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