I'm unable to get my MacBook Pro to connect to my LG monitor via a KVM switch. A direct connection to the monitor works. The KVM does report the correct EDID information (as testing via Linux), but on OSX I can't see the display at all when connected this way.
macOS Sierra 10.12.15 DisplayPort->DVI Adapter (Apple) LG W2443T UNICLASS 4-Port DVI
I've used the command
ioreg -lw0 -r -c "IODisplayConnect" to get information about the connected monitors. When connected directly I see both monitors. Via the KVM only one appears.
Is there some way to force the OS to find/use this external second monitor.
The KVM shows a connection to the MacBook (blinking light stops blinking). The keyboard/mouse connection work fine.