VDMA configuration in Python on Pynq-Z2

[noutsos]

I am trying to configure the VDMA in Python on Jupyter Notebook with the following design but something is wrong because the connection with the board is being lost after i run the last lines…
How can i configure VDMA?

I follow the instructions from:

https://forums.xilinx.com/t5/Design-and-Debug-Techniques-Blog/Video-Series-23-Generate-a-video-output-on-Pynq-Z2-HDMI-out/ba-p/932553

https://forums.xilinx.com/t5/Design-and-Debug-Techniques-Blog/Video-Series-24-Using-the-AXI-VDMA-in-Triple-Buffer-Mode/ba-p/938327

[noutsos]

I also used the following code in Python but when i run the last code “vdma.writechannel.start()” my monitor is still blank but it shows “inappropriate format” instead of “no signal”.