Question about IOGear GCS1764 4-port KVM Switch

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Iogear 4 port kvmp Mouse and Keyboard not detected

I have IOGEAR GCS1764, when I connect Mouse and keyboard, I cannot see any activity. I can switch ports through scroll lock key combination but keyboard neither mouse work on any computer attached. I have optical mouse and when I cannot to KVMP switch, it doesn't turn on optical light.

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Posted on Jan 02, 2017

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1 Answer

I've got a 4 port switch with two computers hooked up - a desktop and a Lenovo Thinkpad R60 laptop - the desktop works perfect but when I switch to the laptop only the keyboard works - no video or mouse


The Thinkpad does not divert the video automatically to the external monitor via the KVM switch, you need to divert the video by pressing on the Fn key and the press the F7 key to toggle between the Thinkpad's LCD screen and the video port/external monitor. You may need to use a separate USB mouse connected to the Thinkpad.

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I have an IOGear GCS1734 KVM switch and two Windows based machines. I work for the gov't and we have to use a CAC Card. My keyboard has a slot/reader for my CAC card to verify my credentials. If I...


As far as mouse is concerned all you need is PRACTICE, and there may be a compatibility issue with your keyboard or the wire you are using is not fine, coz the kvm switch is definitely ok when used with 2 systems.

Oct 19, 2010 | IOGear USB gcs1734 4-port KVM Switch

1 Answer

New IOGear GCS632U KVM inop


First, disconnect the KVM switch from the computer(s). Disconnect also the keyboard and mouse from the KVM switch, including speakers (if there is). Leave the KVM disconnected for 5 minutes.

Before you reconnect the KVM switch, make sure that the computers are turned off. Re-connect the KVM switch to the computers, and then reconnect the keyboard and mouse.

Turn on the first computer, followed by the second one. If you are still not getting any light indicator, then the KVM switch is dead.

You may contact IOGEAR through 866-946-4327.

Thank you for using FixYa!

Jun 08, 2010 | IOGear GCS632U 2-port KVM Switch

1 Answer

Repeated IOGear KVM switch failures


As a wild guess, it sounds like a static discharge MIGHT be affecting the switcher causing it to crash.

Try increasing your humidity to 40% and grounding yourself before touching the keyboard... This is the season for these static electricity problems... get nipped all the time and you MAY not even feel it to be enough to zap the switch.

Jan 11, 2010 | IOGear MiniView GCS62 2-port KVM Switch

1 Answer

Not switching systems


Make sure your keyboard is plugged into the keyboard port of the KVM. The IOGear KVMs use a keyboard and mouse emulation. Due to this the keyboard port is the only port will recognize the Scroll Lock command.

Oct 12, 2009 | IOGear Computers & Internet

1 Answer

KVM will only switch one way


Please make sure that the keyboard is hooked up on the KB port of the KVM. check underneath the GCS632U for the correct console port. you will see a keyboard and mouse icon. Make sure that the keyboard is connected to the keyboard port. tap scroll lock key twice to switch between computers.

May 13, 2009 | IOGear GCS632U 2-port KVM Switch

1 Answer

All Keys do not work on keyboard with KVM switch


GCS632U is designed to work with standard USB keyboard an mouse only. You have to make sure that you are not using any type of adapter such as PS/2 to USB adapter. To further isolate the problem, please follow the steps below:

1. Connect the USB keybord directly to th computer to make sure that the keyboard is working properly.

2. Make sure that the keyboard is connected to the keyboard port on your KVM switch. You may take a look under neath this GCS632U (near the USB ports) and you will see an icon where to connect the keyboar and mouse.

3. If you're still gettings the same problem, Try power cycling this kvm switch by disconnecting if from the computers and disconnect also the keyboard and mouse from the KVM switch and leave them disconnected for a minute or two.

4. Reconnect everything after two minutes and then reboot the two computers.

5. If same problem exist, try using different USB keyboard.

NOTE: This KVM swith does not work correctly with wireless, gaming and smart keyboards because it's designed to work with standrd USB keyboard only.

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2 Answers

4-port usb kvw switch #GCS634U


The GCS634U is designed and tested to work only with a standard USB keyboard and mouse. However, most wireless keyboards and mice work with it, but they cannot guarantee any specific model or brand that would work correctly.

As you can see, this KVM switch is a bus powered device (meaning it only gets power from the USB ports of the computers). If the computer cannot provide enough power for the KVM switch to function correctly, then the wireless keyboard will be affected.

You may try using the IOGEAR GKM541RA. It's tested to work with the GCS634U. Or you may also try using a self-powered USB hub (meaning, it has it's own power adapter) and connect it in between the KVM switch and the computer. That self-powered USB hub will be the one that will add up power to the KVM switch and help it to function properly.

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1 Answer

Mac and Vista


Operating System doesn't deal anything on your problem. The problem depends on the brand of you computers or the type of keyboard you are using.

The GCS632U is designed to work with standard USB keyboard and mouse only. And wireless and gaming keyboards and mice are not guaranteed to work correctly with this KVM switch. If any one of you is using the new Mac Aluminum keyboard, this keyboard will not work with the older version of the GCS632U. But IOGEAR releases a new batch of GCS632U that would work with the Apple Aluminum keyboard.

If you have an Apple Aluminum keyboard that does not work with the GCS632U, you may contact the IOGEAR Tech support and they will process a Return Merchandize Authorization (RMA) if your device is still under the warranty period.

To resolve your keyboard issue, try to power cycle the KVM switch by disconnecting it from the computers, disconnect also the keyboard and mouse from the KVM switch. Leave it disconnected for two minutes. After two minutes, reconnect everything and reboot the computers.

Oct 20, 2007 | IOGear GCS632U 2-port KVM Switch

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