Loss of image synchronicity when using 2 GPUs
Posted: Fri May 23, 2025 13:05
Hello. I have 2 qadro rtx 5000 and qadro cync 2 cards in my system. For test I use an image output on an LED screen that is connected by 4 video outputs. There are two outputs in one qadro 5000 and two in the second qadro 5000. The resolution and frequency of the outputs are the same, and the nvidia control panel has enabled syncharnization for these four displays, but a desynchronization is visible at the junction. Tell me how to fix it without using a mosaic.
For the test, I used a 2.6 screen and different processors/cards (660/vx1000 (by pass)/mctrl 4k. it says in the Nvidia control panel that there is synchronization, sometimes you can even see it when outputting content, but it regularly falls apart, the drivers on the video card are the latest and the current version of the algorithm. The mosaic option is not suitable because we have only 2 GPUs and it is planned to use 7 outputs to a single LCD screen and 8 for the control monitor in the maximum set. We managed to achieve synchronization a couple of times with the output of one footage, but as soon as we activate the capture layers and ndi, the synchronization crumbles. Tell me who worked on a system with 2 GPUs and a qadro sink II, what are we doing wrong and why stable synchronization cannot be achieved.
For the test, I used a 2.6 screen and different processors/cards (660/vx1000 (by pass)/mctrl 4k. it says in the Nvidia control panel that there is synchronization, sometimes you can even see it when outputting content, but it regularly falls apart, the drivers on the video card are the latest and the current version of the algorithm. The mosaic option is not suitable because we have only 2 GPUs and it is planned to use 7 outputs to a single LCD screen and 8 for the control monitor in the maximum set. We managed to achieve synchronization a couple of times with the output of one footage, but as soon as we activate the capture layers and ndi, the synchronization crumbles. Tell me who worked on a system with 2 GPUs and a qadro sink II, what are we doing wrong and why stable synchronization cannot be achieved.