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KVM switch and Desktop Monitor Issue

I had the desktop computer and laptop successfully working through a KVM switch, but when I changed the resolution on the monitor through the desktop computer, the monitor blanked out and gave me the message that "Input Signal Out of Range." I unplugged the monitor from the KVM switch and plugged it directly into the computer and it worked fine, so I tried to fix the resolution while it was directly plugged in, but now I get no signal from the desktop to the monitor. I tried to reset the monitor to factory settings from the menu of the monitor, but nothing happened. Under the information menu on the monitor it states that the current setting is 1152 x 864 and recommends 1680 x 1050 60hz. Any help anyone can provide would be great.

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riceski
  • 1851 Answers

SOURCE: KVM Switch Issue

There is a natural order of things in pc's. It sounds to me like you may have an issue with the pc being just quicker than the lap top and it is loading in a hodge podge way.
I wish I could help you more but I would try going to a ps2 mouse and keyboard if you have the usb type and if not swap these two out as these must pass before the unit will even boot. Also - do you have a slave drive marked cable select? These things upset a delicate balance. I would also email the maker and see if they can help.
For a more definitive answer please send the make - model and operating systems on each pc - lap and desk - also have you done all your updates? Try updating the driver on the KVM website as well. These issues usually are a small matter to get lined out.

Let me know how it goes and send ur pc info

Gary
riceski@gmail.com

Posted on Feb 04, 2010

  • 52 Answers

SOURCE: I have been using my

This almost sounds like the display setting on your laptop was changed to an external device. Most laptops are designed to be hooked up to an external display, such as a monitor or projector, specifically for presentations. You can alternate the display options in the following ways:

  1. Laptop display only
  2. External display only
  3. Laptop+External clone
  4. Laptop display + extended desktop on external display (dual monitor setup)
Check your laptop display settings and make sure that it's not in presentation mode (options 2-4) before connecting the KVM switch to it. It may be recognizing the KVM switch as an external display in option 4 mode.

Posted on Mar 25, 2011

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I have been using my Iogear kvm switch for almost 2 years now to switch between a desktop and a laptop, both Windows XP. I unplugged the laptop in a hurry to go do a presentation, and plugged everything...


This almost sounds like the display setting on your laptop was changed to an external device. Most laptops are designed to be hooked up to an external display, such as a monitor or projector, specifically for presentations. You can alternate the display options in the following ways:

  1. Laptop display only
  2. External display only
  3. Laptop+External clone
  4. Laptop display + extended desktop on external display (dual monitor setup)
Check your laptop display settings and make sure that it's not in presentation mode (options 2-4) before connecting the KVM switch to it. It may be recognizing the KVM switch as an external display in option 4 mode.

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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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the GCS632U has keyboard and mouse emulation that may not function correctly with docking stations. To ensure the KVM it self is working correctly I would suggest plugging the single USB from the KVM directly into the laptop and see if you have the same keyboard problem. This will at least tell you if the KVM is working properly or not.

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I know i hooked everything up correctly, the mouse and keeyboard switch work just fine but, when i plug in the monitor the screen goes blank.


With the GCS632U is recommended that you keep the KVM focus on a computer while it is booting. For example if both computers are turned off you can turn computer one on and the GCS632U should stay on computer one until it comes to a desktop. This allows the KVM to pass the monitor information and that may help.

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First, you have to make sure that the KVM switch is directly connected to your laptop, and NOT to a docking station.

This KVM switch is designed to work with direct connections to the computers.

Second, the light indicator on the KVM switch is not an indicator for power. It's an indicator to see which port is active. If your laptop is connected to port 2, but the focus of the KVM is in port 1, then the port 1 will have a light, not the port 2.

You may also refer to the user manual of the KVM.

Thank you!

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I have a kvm switch vista lap and xp desktop stopped working


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MAYBE THE LAPTOP IS SUCKING THE JUICE FROM THE PORTS ON THE DESKTOP. 

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Gatewaymodemfor20004dx2-66


More info please, laptop, desktop, cable-modem, or dial-up, brand of computer is usefull too. If cable modem, use a LAN cable(LOCAL AREA NETWORK) it looks similar to a phone cord, and plugs into the back of a desktop, or side of a laptop.
For more than 1 computer, you'll need a router of some kind.
Internal dial-up modems are a whole nother thing, if you need one of these you may want to take it somewhere and have a pro put it in, especially if its a laptop.

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KVM's work best when you are using the same or similar type of hardware however there might be an issue with your video card interfacing with the KVM. I would switch the Video cables and see if the problem moved or disappeared. If the problem moves, then I would suspect the video card is the culprit. Since many problems can be traced to software compatibility issues, I would check to see if there is an updated driver for your video card and or your monitor first. If the problem disappears it could possible be a loose cable connection on the destop PC or the KVM itself. I would also try a different set of cables.

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