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Old 9th July 2017, 07:15   #44301  |  Link
njfoses
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Has anything changed lately with madTPG? I use both Calman and LightSpace via a laptop to calibrate my Sony 940E HDR display using madTPG as the pattern generator on my HTPC. With both programs this evening, madTPG would disconnect randomly in the middle of taking reads. My network is solid and did not drop, so i am not sure what is causing this behavior. Being that this behavior is happening with both Calman and Light Space, makes me think the issue is with madTPG. Calman, Light Space and madvr are all on the latest version.
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Old 9th July 2017, 18:00   #44302  |  Link
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I re-calibrated recently using v0.91.11 madTPG and CalMAN (5.7.2.61). I don't think anything is wrong with madTPG.
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Old 10th July 2017, 07:14   #44303  |  Link
austinminton
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3d playback

Hi,

I have started using madvr for stereoscopic 3d playback with good results. The problem is 3d gets enabled on my television even when a 2D file (of 1080p resolution) is played. I have to manually disable nvidia stereoscopic 3D to get normal 2D playback. I am on a gtx 1080 (Win10 - 378.92 for hdr playback which works fine). Is there some way i can configure madvr to only trigger 3D on display when a 3D file is playing.

Thanks.

Edit: I am not using Nvidia 3D play, just the vanilla drivers for stereoscopic 3D

Last edited by austinminton; 10th July 2017 at 07:19. Reason: 3d play info
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Old 11th July 2017, 09:10   #44304  |  Link
zaemon
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Quick question regarding 3D LUT calibration: what is the best practice for calibrating a projector? Using fullscreen patterns or windowed patterns (with black desktop on the background)? I guess the extra light in the room when using fullscreen patterns have an impact on measurements. I have the feeling that windowed patterns better render actual playback.


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Old 11th July 2017, 10:23   #44305  |  Link
Asmodian
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I understand that total light into the sensor is important for accuracy and the intensity of light reflected not off the screen should be low and largely match the color of the pattern.

Full screen patters are recommended, unless the display changes brightness based on total photons out (e.g. plasma).
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Old 11th July 2017, 11:28   #44306  |  Link
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Old 11th July 2017, 11:39   #44307  |  Link
mzso
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Quote:
Originally Posted by P.J View Post


And you just posted that into a random thread on a random forum?

Look somewhere relevant: https://support.microsoft.com/
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Old 11th July 2017, 12:11   #44308  |  Link
P.J
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Originally Posted by mzso View Post
And you just posted that into a random thread on a random forum?

Look somewhere relevant: https://support.microsoft.com/
Because it happens while playing video with madVR only and not Microsoft problem...
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Old 11th July 2017, 12:22   #44309  |  Link
ryrynz
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It's not a madVR crash, it's a system crash. You won't get any help here.
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Old 11th July 2017, 13:05   #44310  |  Link
P.J
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Quote:
Originally Posted by ryrynz View Post
It's not a madVR crash, it's a system crash. You won't get any help here.


Still not madVR crash...
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Old 11th July 2017, 13:11   #44311  |  Link
ryrynz
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Send the report (I'll assume you have already) and post a bug report
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Old 11th July 2017, 15:08   #44312  |  Link
huhn
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this type of blue scrren is often cause by outdated driver or driver conflicts.
in rare causes this a memory corruption or system file corruption and very rarely a software problem.

so update your drivers and post your system specs with current windows version and have a look at the event viewer in hope not find something more

i guess your madVR settings are default?
have a look at this and see if something is similar.

what is the difference between the blue screen and the madVR crash?
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Old 11th July 2017, 17:01   #44313  |  Link
austinminton
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Quote:
Originally Posted by austinminton View Post
Hi,

I have started using madvr for stereoscopic 3d playback with good results. The problem is 3d gets enabled on my television even when a 2D file (of 1080p resolution) is played. I have to manually disable nvidia stereoscopic 3D to get normal 2D playback. I am on a gtx 1080 (Win10 - 378.92 for hdr playback which works fine). Is there some way i can configure madvr to only trigger 3D on display when a 3D file is playing.

Thanks.

Edit: I am not using Nvidia 3D play, just the vanilla drivers for stereoscopic 3D
After a bit of research it seems this is how nvidia sets stereoscopic 3d. 1080/24p is always enabled in 3d mode. Some users have written scripts to enable/disable 3d. I was trying to do enable/disable madvr 3d in the same script. Are there any command line options to do this please?

Thanks.
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Old 11th July 2017, 17:33   #44314  |  Link
P.J
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Quote:
Originally Posted by huhn View Post
this type of blue scrren is often cause by outdated driver or driver conflicts.
in rare causes this a memory corruption or system file corruption and very rarely a software problem.

so update your drivers and post your system specs with current windows version and have a look at the event viewer in hope not find something more

i guess your madVR settings are default?
have a look at this and see if something is similar.

what is the difference between the blue screen and the madVR crash?
It's the latest driver version for Win10 x64. madVR is so resource hungry.
With default setting, it blows up my GTX960 while playing 4k 10bit HDR.
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Old 11th July 2017, 17:43   #44315  |  Link
DragonQ
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Since I swapped my TV for a different model, I can't get the composition rate to match the display's refresh rate when using MadVR (in both MPC-HC and Kodi). Example:

Default refresh = 50 Hz
Start watching 23.976 FPS video
Display's refresh rate changes to 23.976 FPS automatically by MPC-HC/Kodi
MadVR "Display" stat says 23.976
MadVR "Composition rate" says 50

I've also seen it the other way around (display 50, composition rate 23.976) - it might be that the composition rate is the frame rate of the previous video? I have Kodi set to change the refresh rate as needed (never changed this setting). I've tried D3D9, D3D11, toggling MadVR's automatic refresh rate change on and off, and other things I've forgotten. The solution offered by huhn from a year ago - switching to Fullscreen Exclusive mode - doesn't work for me. The behaviour changes to this:

Default refresh = 50 Hz
Start watching 23.976 FPS video
Display's refresh rate changes to 23.976 FPS automatically by MPC-HC/Kodi
MadVR "Display" stat says 25

So basically it's still wrong. I am very sensitive to stutter so there's no way this has been happening until very recently - I'd have noticed otherwise. I'm using the latest build of Kodi DSPlayer and MadVR. In every case the display refresh rate is correct, according to both MadVR and the display itself, it's just the composition rate that's wrong. I'm using Windows 7 on this box with an nVidia GT 430 GPU. Any ideas? I can see some old posts from 2010 about issues with Aero and dual-monitor setups - maybe the HTPC still thinks the old display is attached or something? It only shows "generic PNP monitor" in Device Manager. I am not sure if swapping the TVs caused it or a recent build of MadVR introduced the problem.
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Last edited by DragonQ; 11th July 2017 at 17:51.
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Old 11th July 2017, 17:47   #44316  |  Link
huhn
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this is an windows 7 bug.
change your OS or use overlay/FSE.
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Old 11th July 2017, 18:19   #44317  |  Link
DragonQ
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As I said, FSE doesn't help. I've also tried MadVR 0.90.24 and it made no difference.

What I've done for now is set both Kodi and MPC-HC to not change refresh rates and let MadVR do it instead. So far, this seems to fix the problem, but I'm not sure if it will have other negative consequences.
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Old 11th July 2017, 19:08   #44318  |  Link
huhn
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you have a composition rate in FSE on win 7?

overlay does't care try that.
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Old 11th July 2017, 21:31   #44319  |  Link
edwdevel
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GTX 1030 DXVA downsizing

Hello everyone,

I am evaluating (benchmarking) madvr with the lowest Nvidea 10 series GPU,
the 1030, and ran into a problem trying to get DXVA downscaling option to
work using a 4k HEVC demo clip, "LG Chess". Here is a screenshot of the
clip using bilinear downsizing:

http://jpegshare.net/f1/d5/f1d5dda1f...94679.jpg.html

The same clip, when using DXVA downsizing:

http://jpegshare.net/48/cd/48cd09006...fab88.jpg.html

As you can see. the DXVA clip does show that downsizing occurs, but there
seems to be a problem with the YCrCb <-> RBG conversion at output. You can
see the madvr downsizing screen on the right, and a GPUShark window below.
Perhaps I haven't set somthing correctly to get this to work, or it may be
a bug. I'm hoping someone may know what the problem is at first glance.

I'm under windows 7, (near) latest LAV filters, Nvidia drivers, madvr, and
MPC-BE.

(Also as you can see, using DXVA downsizing is hugely more efficient than
even simple bilinear downsizing)

Thanks,

edwdevel
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Old 11th July 2017, 21:47   #44320  |  Link
nevcairiel
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DXVA downsizing is incompatible with HDR content, because DXVA is not aware of the HDR nature of the content.
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direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling

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