The problem is the connectors are BNC types. The solution is to make a new cable, with sense connected in the right way. I find that the Hitachi CM2085 can do up to 1024×768 at 75 Hz, and it is multiscan. In the Apple video mode, it’s a 16 inches multiscan.
The sense on the Mac video plug should be connected like this:Sense 0 (pin 10) connected to ground.Sense 1 (pin 7) connected to sense 2 (pin 4) with the diode (the mark next to sense 2).Look at Apple for technote HW30 for more info on sense modes. You’ll need 5 BNC, and a DB-15 male connector (not a high density one), an a diode for example an 1N4148. Here is the connections:
|1||Red Gnd||——||BNC Red Gnd|
|4||sense 2||——||sense 1 (DB-15)|
|6||Green Gnd||——||BNC Green Gnd|
|7||sense 1||——||sense 2 (DB-15)|
|11||C&VSYNC Gnd||——||BNC VSYNC Gnd|
|13||Blue Gnd||——||BNC Blue Gnd|
|14||HSYNC Gnd||——||BNC HSYNC Gnd|
Use under differents OS
The Hitachi CM2085 works perfectly with many OS because it is multiscan. It can support resolution from 640×480 to 1024×768.