Any way to change refresh rate to 1080i25? (1 Viewer)

[Sebastiii]

It is really not easy to see, we can see the issue for less than 1 sec but it repeat itself few seconds after
For sure Yadif fix it on my side

 

[LJG]

I have just tried YADIF and various other settings in LAV, and the issue is still there for me

I also just started up Live TV on the BBC News HD channel and the news ticker was flicking between being nice and white round text and smooth action, then suddenly jerky and full of horizontal lines, then fine again etc etc. If I close MP, go into the Nvidia settings, change the output to 1080i25, then re-open MP and start live BBC News HD again, the issue is completely gone.

 

[Sebastiii]

I'm pretty madVR will do the same for you too, because i can get the same with madVR and EVR

 

[LJG]

Ah, sorry, I had misunderstood your original post. Are you saying I need to use YADIF and MadVR?

My experience of MadVR so far is that it is really fiddly to set up, any quick pointers on how to best implement it?

 

[CyberSimian]

@lisag
I downloaded your test file to see how it would behave with my setup.

(1) With my current setup (see my previous post), your file played smoothly (no jerky horizontal scrolling of the tickertape newsfeed). I also checked my judder test file which has horizontal panning, and that played smoothly too.

(2) I then disabled "Use Inverse telecine" in Nvidia settings, but that made no difference -- both files still played smoothly.

(3) I then changed the de-interlace mode in MP video settings from "Force" to "Auto", and your file still played smoothly (I think that this confirms MM's result). However, my judder test file no longer played smoothly -- the horizontal panning juddered horribly. So I think that my judder test file exposes a problem that is different from your tickertape test file.

(4) I then changed the Nvidia settings from "1080p @ 50Hz" to "1080i @ 25Hz" (with MP video de-interlace still set to "Auto"). The result was jerky scrolling on your file, and jerky panning on mine. One oddity that I noticed: an MP pop-up panel appeared for several seconds saying "PAL@50Hz". I don't know what this means: it might mean that the file is 50Hz but is being displayed at 25Hz, or it might mean that MP is switching the output to 50Hz while the file is playing.

(5) I then changed the MP de-interlace mode from "Auto" back to "Force", and the smooth playback returned for both test files.

What to make of all this? I don't know!

-- from CyberSimian in the UK

 

[LJG]

@lisag

(4) I then changed the Nvidia settings from "1080p @ 50Hz" to "1080i @ 25Hz" (with MP video de-interlace still set to "Auto"). The result was jerky scrolling on your file, and jerky panning on mine. One oddity that I noticed: an MP pop-up panel appeared for several seconds saying "PAL@50Hz". I don't know what this means: it might mean that the file is 50Hz but is being displayed at 25Hz, or it might mean that MP is switching the output to 50Hz while the file is playing.

Maybe you had refresh rate changing enabled here?

 

[Sebastiii]

Ah, sorry, I had misunderstood your original post. Are you saying I need to use YADIF and MadVR?

My experience of MadVR so far is that it is really fiddly to set up, any quick pointers on how to best implement it?

Yes and no it seems that I m getting the same result than Evr. But worth a try. You can use default setting but on my side I need to enable yadif

 

[Sebastiii]

On my side only ticker tape is jerky but only less than 1 secs and it start around 1 minutes 02 secs.

 

[LJG]

On my side only ticker tape is jerky but only less than 1 secs and it start around 1 minutes 02 secs.

Yes, that is the issue, it then repeat a few times after that.

 

[Sebastiii]

Yes, that is the issue, it then repeat a few times after that.

Yep so I can reproduce your issue, I didn't test with 50hz, my dev monitor accept only 60hz, still I can solve it when setting like my previous screenshot (yadif).