Can anyone help me? How can I enable this interrupt? Does it work for vbe? I'm very confusedVertical synchronization, more commonly known as v-sync, is when the frame rate is synchronized to match the vertical refresh rate of the screen. This means the double buffer is copied to screen's buffer in a small period between frames known as the vertical blanking interval. By updating the screen's buffer between frames, you ensure that only full frames are shown at a time.
To aid in synchronizing, virtually all video cards since the first home computers have the capability to enable an interrupt at the beginning of each vertical blanking interval (known as VBLANK).
VBLANK Interrupt
VBLANK Interrupt
From Wiki:
Re: VBLANK Interrupt
How can I use irq 2 line if it is already used by the master-slave connection with the second pic? O_O