Working KVM Switches

KVM
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I figure it would be useful to have a master list of working KVM switches since I see quite a few topics about them (being of particular interest to me this is probably a biased dataset). I’ll start:

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I’ve tested this one:

Positive: you can make 4 FHD Setups and the switch outputs 4K, so perfect resolution in one window

Negative: Mouse roaming over all windows doesn’t seem to work. Awesome feature!

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Sincerely appreciate for all your support!

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I upgraded to a KVM switch with 8 ports (probably overkill) just because it’s rack mountable. Luckily, this one works just as well ([HOME], [HOME], [channel number] is the hotkey in this case). This switch is also nice in that it has two keyboard/mouse ports so I don’t need the little USB 2-port hub attached and then the Comet Pro arrives I can get rid of the HDMI splitter (see this post for details).

Note that there seem to be weird race conditions, sometimes rebooting the KVM switch causes the video and keyboard to stop working unless I disconnect the HDMI out and USB keyboard. This is a switch issue and not a Comet issue, it happens with my lapdock as well.

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I have NOT had luck with Amazon.com: 4x1 HDMI KVM Switch w/Multi-Viewer, 4K 60Hz Quad HDMI Screen Divider Switcher, 4 in 1 Out Seamless Switching with 4xUSB A 3.0 Cables, Quick View for Camera, PC, Laptop, Fire Stick, Roku : Electronics and have a pending topic awaiting approval on the steps I’ve attempted with this device. Here are the bizarre instructions. I can setup hotkeys but cannot get the mouse to work even after disabling usb storage and changing keyboard type.

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Do the shortcuts work if you setup a shortcut to do ctrl-ctrl-#-enter? I can’t seem to get this to work, but it does work if I bring up a virtual keyboard and do it.

Benefits over this KVM vs the other KVM I was trying in the post above, this one lets you change channels even if signal isn’t detected (so that you can wake a system up). I could not do this with the other one.

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I currently don't have access to that model, but IIRC it behaved as my current one does - try omitting the . Note that you may not be able to use the Comet Hotkey feature for this, it seems to be sending simultaneous keys instead of a sequence separated by time.

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Make: IOGEAR
Model: GCS1808 and GCS1816H
Working: Yes!
Computers Supported: 64 → 256
Rack mount: Yes, KVM have a ground wire to rack frames.
Hotkey Support: Working, all features, keyboard or mouse port ( you can leave a regular keyboard in one of the two ports )

As of the most recent firmware update IOGEAR rack mount GCS1816H and GCS1808 work. For the GCS1808 I can confirm that full cascading and hot-key access to the admin interface work. For >40 computers I can personally say that everything is working without issue. I don’t see why the same won’t be for the GCS1816H with cascading, but I will post if it does not.

I have not tried the storage, but I don’t believe it would work for either KVM if you have cascading enabled in or support more hosts then ports on a single KVM.

These are older KVM but are still in use. Some hosts have VGA out to the KVM and others have HDMI→VGA adapters. The GLKVM gets its video from a VGA to VGA/HDMI mirror.

Earlier versions of the GLKVM firmware wasn’t compatible with how the KVM handle keyboard/mouse translation but the latest firmware works!