double buffer while using composite color video output?

[Pancra85]

Is there a way of using color composite output, even if it's less resolution o less colors, with double buffer??
I thought that maybe using a 320x200 resolution with 8 bit color could fit in memory.

I could achieve it using CompMode::MODENTSCHalf120P and CompMode::MODEPALHalf144P

Anyways, "MODEPALHalf144P" (gray output) with "setFrameBufferCount(2)" still flickers, weird.

I'm doing this:

void setup()
{
  videodisplay.setFrameBufferCount(2);
  videodisplay.init(CompMode::MODEPALHalf144P, 25, false);
}

void loop()
{
  videodisplay.clear(0);
......drawing..........
  videodisplay.show(0);
}