Pixel clock is generated on the host. All the VSYNC/HSYNC pulse timings are also generated by the host. Monitor has little choice but to respect it, or refuse t

Pixel clock is generated on the host. All the VSYNC/HSYNC pulse timings are also generated by the host. Monitor has little choice but to respect it, or refuse to operate. On some embedded platforms, if you can't get a precise clock you need from clock subystem, or massage the display mode timing to fit whatever pixel clock you can generate, you may be running your display at 34 FPS instead of 60 FPS if you're not careful eneough. And you'll barely notice unless you measure it, or try to play video or do anything else sensitive to timing.