FAQ Black display with CALU The Intel graphics card adapter drivers has dualhead-support. If the display is switched to the non-existing second display, then you will see nothing on the primary one. Pressing CTRL+ALT+F1 fixed this. Also this can help to solve it : Boot into Windows Safe Mode, deinstall drivers of graphics card adapter, reboot. Alternatively you can use this graphics driver Grafikkartentreiber, with that the problem can not occur. CALU(CORE)-C-Series does not work (functionality test) Wiring : green = ignition+ red = +12V white = ground After connecting ignition+ it could take up to a minute until the system boots. The time for start up and shut down the PC automatically, is set in the BIOS! BIOS setting: „PASS“ = Starts without time delay (a few seconds)