VESA Signal 720 x 400 @ 85 Hz timing

General timing

Screen refresh rate	85 Hz
Vertical refresh	37.92735042735 kHz
Pixel freq.	35.5 MHz

Horizontal timing (line)

Polarity of horizontal sync pulse is negative.

Scanline part	Pixels	Time [µs]
Visible area	720	20.281690140845
Front porch	36	1.0140845070423
Sync pulse	72	2.0281690140845
Back porch	108	3.0422535211268
Whole line	936	26.366197183099

Vertical timing (frame)

Polarity of vertical sync pulse is positive.

Frame part	Lines	Time [ms]
Visible area	400	10.546478873239
Front porch	1	0.026366197183099
Sync pulse	3	0.079098591549296
Back porch	42	1.1073802816901
Whole frame	446	11.759323943662