blackmagic playback problems

[AdamDGK]

I would like to get more output from the computer. I use a blackmagic 8k card for this. Unfortunately, the image is not as smooth as with GPU. I tried a low resolution of 1080 60p to eliminate the bandwidth problem. the card is connected to pcie 8x so there shouldn't be any problems. Capture works super smoothly. I also tested sending in vmix and 2160 60p works without any problems. where is the problem? someone use 8k blackmagic cards?

[Arvol]

Have you tried setting 4-10ms of delay on the output from those cards in advanced output settings?

[AdamDGK]

Yes. I tried with different values. on two different servers

[Arvol]

I know a few years back with BMD cards it was like driver roulette. After about 7-12 revision installs I finally got a version to work. Might be outdated or too new of drivers?

[dcaiman]

What computer configuration do you have?

CPU model, motherboard, graphics model…
What cards do you have installed in addition to the graphics card and the 8k Blackmagic?

[AdamDGK]

I only had blackmagic for testing. I was thinking about buying it and it would be great to have an in/out card for this price. with vmix it works great, so I think it's not a card problem but a resolution problem. pc is ryzen 7900x, MSI MEG X670E board, 64 gb ram, 4080 rtx. card installed in pcie x8. all pcie lines on this board are connected to the processor.

[Zoltán]

Try adding a few ms delay to the Screen in the advanced output.

[AdamDGK]

of course I tried but it didn't help

[Zoltán]

Composition, footage and the BMD output all set to the same frame rates?

How does the playback look on the output limiting the composition fps and the output to 30?