Detects Display But Blank

[darnelld]

Originally Posted by ChristianP

Thanks for the logs. The driver seems to have problem in reading the EDID of your display, so it tries to use default modes (but unfortunately these modes are not good for your display). What kind of display are you using? Just for testing, does it have additional inputs other than the display port one?
Thanks

Hi Christian,

Thanks for the reply. I am using an apple 24" HD cinema display (displayport not thunderbolt). I connect the monitor to the display port on the Mac and it works fine. When I then unplug it and use the USB diamond card the display is blank. I use a dvi -2- mini displayport cable to connect through a KVM switch (which also works if I go through the computer port) then to the display.

The only variable left is the diamond device.