No video output

[bvitaliyg]

Hey, I'm relatively new with Pico.

I'm getting no signals on screens I have. I'm using pico-dvi-sock (also tried to wire it manually with the resistors) with no result so far. I've tried different examples, different Pico boards, I double-checked that I compiled the project with -DPICO_COPY_TO_RAM=1.

I'm getting a clock signal at 25.2 Mhz. It doesn't look exactly square or sine, but it does look like clock pulses. The reverse clock signal is also there:

There's some data on the data lines, but it doesn't look like a digital signal. Here're two images – data and clock signals together and differential data signals only:

I'm not sure of what went wrong and how to troubleshot it further. Any ideas or recommendations?