Hello,
I must synchronize the video and audio output to a PTP source (grandmaster clock). Therefore, I need a drift-free, synchronized audio/video clock, either the PTP or the system clock.
My hardware environment:
- Intel Atom x6211E using the integrated GPU and the HDMI output
- Linux: latest Debian Bookworm
From my understanding, the goal of linuxptp4l and phc2sys is to synchronize the system clock to an external source, which in my case is a PTP grandmaster clock. I measured the vertical syncs to see if they were in sync with the system clock, but they weren't. Is there a technology that syncs the pixel clock to the system clock? (TSN could be a keyword here) Or is there a way to tune/adjust the pixel clock somehow? I could also patch the driver to support such a functionality if the hardware supports it.
