Question about IOGear GCS632U 2-port KVM Switch

3 Answers

GCS632U - Speaker issues

After following the instructions in the manual to hook up the speakers, now when I play music on my main PC, I get feedback on the monitor (sqiggly lines keeping beat to the sound). No sound comes out of the laptop.

Originally didn't need sound so never hooked up the cable to KVM until a couple of weeks ago.

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  • annaohoh Jan 20, 2009

    I took your advice and RMA'd the first GCS632U. I had my company purchase another one. Same problem! 8=(
    The laptop displays videos and plays music just fine. The desktop doesn't. Same squiggly lines across the screen. Updated the video driver, monitor driver, rebooted, switched KVM ports... all to no avail.

    Thanks for trying to help. I think after 3 hours of putzing with it today, I'm going KVM-less.

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The only solution for great quality is to spend $150 more and purchase the higher end "Harmony" IO-Gear KVM switch, this works great! But if you don't want to spend that much, this is what I did with my IO-Gear GCS632U. I did RMA the first one and when the second worked the same way I realized I would have to live with it since I didn't have more to spend at the time! The video quality is terrible at high resolutions with this KVM, no MATTER WHAT!!! Playing with refresh rates helped a little, but I still saw some ghosting and interferance at times (most likely due to the lack of ferrite beads on the ends of the already "too small to carry a good signal" video cables), otherwise it looks and works great with resolutions under 1280x1024. The sound also suffers, obviously but I found out (using a multimeter) that the sound issue is due to the KVM unit trying to amplify the sound a little so to solve it I simply turned sound down in windows and increased the volume on my speakers until it sounded ok (if this doesn't work for you, try it vice versa).

Hope that helps!

Posted on May 14, 2009

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To isolate the problem, please follow the steps below:

1. Connect first your speakers directly to the computer to see if the speaker is working correctly.
2. Checked the physical connection: make sure that your speaker is properly connected to the KVM and the KVM to the computer.
3. Make sure that you are going to play a music on the focused computer.
4. Make sure that your speaker is supported by this KVM switch.

NOTE: The GCS632U is designed to work with 2-channeled speakers only. If you are using 5.1 multimedia speakers, there's a possibility that it might or it might not work. You may refer to IOGEAR Web site and you will find this information.

Posted on Apr 14, 2009

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I think you have a defective device there. RMA!

Posted on Jan 10, 2009

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