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Old 15th August 2019, 01:55   #57121  |  Link
toki
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Quote:
Originally Posted by Asmodian View Post
Ah yes, my low power settings do not consider the performance hit from HDR.

I am not sure what you mean by your question, sorry. Are you talking about an option from the hdr test builds?
it's option on the last official build under trade performance. I just put it back with last beta build. That fixed it.

Now, I've trid multiple combos for image tweaking. The only thing that seems to work without causing stutter is ngu anti alias (medium), downscaling, ssid (100), image upscaling dvxa. Every other combination bumps it too high and starts skipping. So far, lol. I'm sure I'll find something wrong with it.
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Old 16th August 2019, 16:45   #57122  |  Link
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I meant to say 1660ti for the card I'm using.
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Old 16th August 2019, 22:35   #57123  |  Link
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Just a remark with custom modes "Test settings" button in madvr. I hit it accidentally and since then, TV went black and there is no signal. Now I dont a have a second monitor to fix it. Cool.
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Old 16th August 2019, 23:31   #57124  |  Link
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power button.
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Old 17th August 2019, 03:44   #57125  |  Link
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I have 1080 GTX now. I might move to AMD, any specific issues with Madvr and AMD drivers/Cards? or it's just same settings as Nvidia now
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Old 17th August 2019, 05:09   #57126  |  Link
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AFAIA the Navi cards are golden when it comes to MadVR, let us know how well it works compared to the 1080 for 24hz and NGU performance.
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Old 17th August 2019, 11:05   #57127  |  Link
oldpainlesskodi
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Originally Posted by x7007 View Post
I have 1080 GTX now. I might move to AMD, any specific issues with Madvr and AMD drivers/Cards? or it's just same settings as Nvidia now
Same here, I just pulled the trigger on a RX5700 XT...will be here later today...
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Old 17th August 2019, 11:40   #57128  |  Link
Plutotype
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Originally Posted by huhn View Post
power button.
I had to connect a PC monitor to be able to fix the issue. Restart/hard shutdown didnt help with the GPU outputing to my TV. Probably bad timings stayed baked there.

Btw with the old driver 383.13 I was able to get 23.976Hz with frame drops/repeats every 4 hours. But there was Windows 10 update couple of days ago, which must change something and suddenly, the custom timings in madvr were not working anymore ( stats were showing 23.971Hz which is default Nvidia ). I have upgraded to Nvidia driver 431.60 and played with the madvr custom resolutions to optimize it. The best I could get was 23.97734Hz, which results into frame repeats every 12 minutes.

Is there a Nvidia driver version which can give me 23.976 with the recent version of Windows 10?

Thanks
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Old 17th August 2019, 12:57   #57129  |  Link
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I have 1080 GTX now. I might move to AMD, any specific issues with Madvr and AMD drivers/Cards? or it's just same settings as Nvidia now
There are two minor issues I am aware of.

1 - I have an issue where colours/reds are blown out with SDR material sub 60hz, I have tried any of the new drivers so I dont know whether its fixed. You will only see it if you are setup for HDR / 10 bit though. This can easily be fixed though on my system by setting up madvr calibration to BT2020.

2. The is a bug in MADVR when using 3D, if your desktop is 4k and you play a 3D MVC movie, when it comes out of the movie and drops back to 4k you get HDMI loss, there are lots of ways around this.

Some people have reported banding in some situations, i've never seen any ever, I have a 2015 4k LG EF950v OLED.

I'm currently using a RX 580, its good for NGU high but I usually run it at medium or low in to keep heat and noise down, i generally find there is no distinguishable differce between high and low for me anyway.
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Old 17th August 2019, 12:59   #57130  |  Link
mclingo
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Originally Posted by oldpainlesskodi View Post
Same here, I just pulled the trigger on a RX5700 XT...will be here later today...
i'd be really interested to know how you think this compares to a 1060 / 1080 in your opinion when you get chance, these seem to be the most popular cards on here for NVIDIA.
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Old 17th August 2019, 13:13   #57131  |  Link
oldpainlesskodi
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Will post some observations here tomorrow.
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Last edited by oldpainlesskodi; 17th August 2019 at 14:38.
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Old 17th August 2019, 16:14   #57132  |  Link
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How complicated is it, to add support for HLG (Hybrid Log Gamma)? This is another HDR format which is used with DVB transmissions to save bandwidth. And who needs to support it? Only madVR or the graphics card as well?
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Old 17th August 2019, 19:59   #57133  |  Link
nevcairiel
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Originally Posted by RealSnoopyDog View Post
How complicated is it, to add support for HLG (Hybrid Log Gamma)? This is another HDR format which is used with DVB transmissions to save bandwidth. And who needs to support it? Only madVR or the graphics card as well?
If madVR supported it, it could at least make use of the HDR data to create a better SDR image.

If you want the HLG data actually send out to the screen without madVR processing it to ordinary SDR, the graphics card would probably need to accept it as a valid mode. Luckily HLG has no extra metadata, so that might be easier.
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Old 17th August 2019, 22:00   #57134  |  Link
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For SDR output you can make a 3DLUT with DisplayCal.

Edit: You have the option of using the SMPTE 2084 roll-off with an HLG profile, but that probably won't work.

Last edited by Alexkral; 17th August 2019 at 22:22.
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Old 18th August 2019, 05:30   #57135  |  Link
huhn
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madVR doesn't read HLG yet and doesn't like HLG 3D LUT.
i just "convinced" madVR that this 3D LUT is fine just use it and it worked fine with an HLG source.
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Old 18th August 2019, 08:34   #57136  |  Link
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Is there any known cause for presentation glitches to accelerate over time? I've tried almost every option in the general settings page to no avail. Rendering times are ~10ms and there's no repeated or dropped frames.
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Old 18th August 2019, 15:13   #57137  |  Link
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You don't say what presentation glitches are occurring. You also need to tell us something about your system, such as what graphics card are you using, and how much video memory does it have?
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Old 18th August 2019, 15:15   #57138  |  Link
oldpainlesskodi
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Quote:
Originally Posted by oldpainlesskodi View Post
Will post some observations here tomorrow.
Initial findings (summary)

Like:

1st ever time using an AMD card...love the black levels (picking up details in shadows and dark scenes that were never visible with the 1080) and PQ (appears cleaner,and yet more detail at the same time), and control over just about every aspect of PQ.

Using Wattman (auto overclock), the card is happy and stable at 2130. About 30% faster that my overclocked 1080 strix (render times).

Dislike:

Control over just about every aspect of PQ (for us types...oh well, even more obsessing)

Software not as intuitive as Nvidia.

Seems to throttle at a lower threashold (nivida on 23p, seems to be about 39 vs 32 ms)

HDR is better on Nividia because of the API links in Madvr (I assume) being able to tell the display its a Bt2020 signal.

Verdict - 1080 up on ebay over the next few days, but still have lots more testing and tuning to do.
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Last edited by oldpainlesskodi; 18th August 2019 at 15:22.
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Old 18th August 2019, 15:37   #57139  |  Link
huhn
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there is no difference in black level this has been proven countless times using measurement hardware you are imagine things or your level settings are messed up.

can you make a screen with ShowRenderSteps would be nice to see AMD back with some NGU capable cards.
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Old 18th August 2019, 15:41   #57140  |  Link
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IIRC, AMD has (or used to have) some image improvement processing options enabled by default. Make sure you're not falling into a processing trap.
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