Thanks for the descriptors and the info.
I didn't know KVM with DDM at all and it is very intriguing device.
Yes, many of the ConnectPro KVMs use DDM. It's very useful.
https://connectpro.com/technology/usb-ddm/. But it works only with the KVM's dedicated Keyboard and Mouse ports.
I'm not sure I can undertand what your problem is exactly.
The problem is that I cannot use the Realforce R2 keyboard with the KVM's dedicated Keyboard port. I can plug it into one of the KVM's generic USB ports and type normally, but there are three annoying issues:
1. I cannot use the KVM's hot key sequences ([ctrl][ctrl][1] or [ctrl][ctrl][2]) to switch computers;
2. When I switch computers with the KVM's buttons, there's a lag of a few seconds before the keyboard is active on the computer I'm switching to. Also, both devices beep while they lose or gain the USB connection.
3. Even though I've disabled time-out on both computers, if I do not switch to one computer for a few hours, the KVM loses the monitor connection to that computer. I'm not 100% sure this is related to the keyboard using the generic USB port, but it has happened three times in one week. This never happens when my other keyboard is on the KVM's keyboard port.
What does "KVM's emulation" mean exactly?
Sorry, I was not using the correct term. I was referring to the KVM's ability to maintain each computer's connection to the keyboard on the dedicated port. In other words, DDM.
I think both Realforce R2 and Hexgears Nova B2 TK support NKRO with seeing their descriptors. I like to know if they still work as NKRO keyboard through the KVM or degrade to 6KRO mode. Can you test that?
Using key test tool see if you can hold more than 6 keys(except for modifiers) at same time.
https://www.majorgeeks.com/files/details/switch_hitter.html
I didn't even know that the Hexgears Nova uses NKRO. Indeed, NKRO does work through the KVM's dedicated keyboard port. Thanks for pointing me to Switch Hitter -- a very interesting tool! With the help of a small hard-cover notebook, I was able to hold 40 keys on the Nova, while connected to the KVM and then while connected to a port on the computer. I got similar results with the Realforce R2 while connected to the computer. I'm attaching log files for all three scenarios. The filenames should provide contexts.
I am confused by these results, after hearing from both support teams that the Realforce's NKRO is at fault. Maybe the Realforce implements NKRO differently. I should reiterate that the KVM does not accept even a single keystroke from the Realforce when it's on the dedicated keyboard port.
By the way, the Hexgears Nova has a key sequence ([Fn]+[~]) to disable NKRO. Then, Switch Hitter confirms that only 6 keys register. The key sequence has no effect on the Realforce.
Thanks again!
