TV_CLK
"ntsc_640x480i", 60, 640, 480, TV_CLK, 38, 33, 0, 18, 146, 26,
"ntsc_640x240", 60, 640, 240, TV_CLK, 38, 33, 0, 0, 146, 22,
if (var->pixclock != TV_CLK && var->pixclock != VGA_CLK) {