Problem with madVR

Hello, Im using madVR on MPC-HC. Very rarely on some videos I get these two horizontal lines through the screen. As far as I can tell it happens only with upscaled videos but not all upscaled videos. It doesnt happen with EVR. Upscaling is set to DXVA2. It doesnt happen with Lanczos for example. Any idea how to fix it? Here are two screenshots. It's quite hard to see, easier with moving image, you have to look carefully. Thanks!

can you post a small sample and a screen with the OSD(control + j)?

Here's sample - Here's OSD - Screenshot is from sample 12 seconds in.

looks like tearing. i don't get this problem when playing this file. try a difference scaler that is not DXVa and what OS is used here?

can you least check if the problem disappears? what GPU is used BTW?

Yes, as I mentioned in my first post, Lanczos doesnt have it, I havent tried others. The GPU in use is integrated intel 4400. I also have an additional Nvidia but I cant get it to switch to that and disabling the integrated from bios is not allowed... Dell...

is this a laptop or a desktop PC or with other word is it using nvidia optimus? if DXVA scaling is producing tearing in madVR and not in EVR (not EVR CP) than this looks like a madVR bug.

This is a laptop. Dont know what nvidia optimus is. How do I check? After further testing I realized that the tearing appears at both EVR and EVR CP, and also at madVR DXVA and Lanczos, even Bilinear. Basically everywhere. Its just that DXVA gives the sharpest image and that makes it the most obvious. At the other settings its much more difficult to spot. What does this tell us? :)

I tried getting the resolution down to the resolution of the video so no scaling would be required. Tearing is still there.

i guess this comes down to optimus. so i can't help you there i never used a optimus system and i don't plan on doing it. so someone with a optimus laptop could maybe help you changing the GPU i can't sorry.