VGA pinout: PIN FUNCTION 1 Red video 2 Green video 3 Blue video 4 Not used 5 Ground 6 Red return (ground) 7 Green return (ground) 8 Blue return (ground) 9 Key (no pin) 10 Sync Return (ground) 11 Monitor ID (not used) 12 Monitor ID (monoputkissa gnd, v{riputkissa ilmassa tms) 13 Horizontal sync 14 Vertical sync 15 Not used ---- 9-to-15 pin conversion table 9-PIN PIN 15-PIN PIN Red 1 Red 1 Green 2 Green 2 Blue 3 Blue 3 Horz sync 4 Horz sync 4 Vert sync 5 Vert sync 5 Red Ground 6 Return Red 6 Green Ground 7 Return Green 7 Blue Ground 8 Return Blue 8 Sync Ground 9 Digital Ground 10 Ground 5