KVM switch modification

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  • shovenose
    Send Doge Memes
    • Aug 2010
    • 6575
    • USA
    #1

    KVM switch modification

    I've got an old 4-port Belkin unit...
    works fine, except I want to be able to uplug the (PS2) keyboard and mouse, and (VGA) monitor, while maintaining connection to the computers and not having to restart them.
    Tags: None
    • smason
      Badcaps Legend
      • Feb 2010
      • 1652
      • Canada
      #2
      Re: KVM switch modification

      I've never seen a KVM that wouldn't let you do that
      36 Monitors, 3 TVs, 4 Laptops, 1 motherboard, 1 Printer, 1 iMac, 2 hard drive docks and one IP Phone repaired so far....

        Comment

        • shovenose
          Send Doge Memes
          • Aug 2010
          • 6575
          • USA
          #3
          Re: KVM switch modification

          Really?

            Comment

            • severach
              Badcaps Legend
              • Aug 2007
              • 1055
              • USA
              #4
              Re: KVM switch modification

              Are you saying that pulling the keyboard is generating a spontaneous reboot or is the keyboard no longer recognized when plugging it back in?
              sig files are for morons

                Comment

                • shovenose
                  Send Doge Memes
                  • Aug 2010
                  • 6575
                  • USA
                  #5
                  Re: KVM switch modification

                  Originally posted by severach
                  Are you saying that pulling the keyboard is generating a spontaneous reboot or is the keyboard no longer recognized when plugging it back in?
                  The second one.

                    Comment

                    • Topcat
                      The Boss Stooge
                      • Oct 2003
                      • 16951
                      • United States
                      #6
                      Re: KVM switch modification

                      the only way around that is a KVM that simulates the perifs (ie, 'dummy loads') to the PC. I'm sure your Belkin doesn't. KVM's that do are rather pricey.

                      I think I have an old 8 port autoview commander laying around somewhere that would do it.....I got it just for the reason you needed.

                      Don't forget to recap it if you find one on fleabay!
                      https://www.badcaps.net/forum/showthread.php?t=5284
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                        Comment

                        • shovenose
                          Send Doge Memes
                          • Aug 2010
                          • 6575
                          • USA
                          #7
                          Re: KVM switch modification

                          Originally posted by Topcat
                          the only way around that is a KVM that simulates the perifs (ie, 'dummy loads') to the PC. I'm sure your Belkin doesn't. KVM's that do are rather pricey.

                          I think I have an old 8 port autoview commander laying around somewhere that would do it.....I got it just for the reason you needed.

                          Don't forget to recap it if you find one on fleabay!
                          https://www.badcaps.net/forum/showthread.php?t=5284
                          Are you looking to sell yours?

                          what about this?
                          can my existing KVM cables work with it?
                          http://www.ebay.com/itm/CYBEX-AUTOVI...item3cc0d3a099

                            Comment

                            • Topcat
                              The Boss Stooge
                              • Oct 2003
                              • 16951
                              • United States
                              #8
                              Re: KVM switch modification

                              No, the cables are proprietary.
                              <--- Badcaps.net Founder

                              Badcaps.net Services:

                              Motherboard Repair Services
                              ----------------------------------------------
                              Badcaps.net Forum Members Folding Team
                              http://folding.stanford.edu/
                              Team : 49813
                              Join in!!
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                                Comment

                                • shovenose
                                  Send Doge Memes
                                  • Aug 2010
                                  • 6575
                                  • USA
                                  #9
                                  Re: KVM switch modification

                                  Well fuck that sucks
                                  Screw this, I'll just not have keyboard, mouse, monitor on my server ,and use RDC (Windows Server 2008) or SSH (Ubuntu Server)...

                                    Comment

                                    • smason
                                      Badcaps Legend
                                      • Feb 2010
                                      • 1652
                                      • Canada
                                      #10
                                      Re: KVM switch modification

                                      I've used a lot of KVMs in my career. Never seen one that didn't fake a keyboard/mouse/monitor to the computer at all times.

                                      That said, of all the brands I've used only one didn't give trouble. Switchview/Avocent the only brand I'd recommend. Ditto for UPSes, APC or nothing. I've seen a lot of other brands fail with various problems, including one particular Tripplite model that used to catch fire. I've been in I.T. for over 25 years, so I've developed a few opinions
                                      36 Monitors, 3 TVs, 4 Laptops, 1 motherboard, 1 Printer, 1 iMac, 2 hard drive docks and one IP Phone repaired so far....

                                        Comment

                                        • shovenose
                                          Send Doge Memes
                                          • Aug 2010
                                          • 6575
                                          • USA
                                          #11
                                          Re: KVM switch modification

                                          Um... are we sure about that? Because my Belkin unit doesn't then again it's an old OmniView series 4-port with "Win2K" support. Lol! even though I don't see why it should matter given that it's a simple KVM switch...
                                          Maybe it just has to do with the fact that Belkin makes cheap shit?

                                            Comment

                                            • smason
                                              Badcaps Legend
                                              • Feb 2010
                                              • 1652
                                              • Canada
                                              #12
                                              Re: KVM switch modification

                                              Originally posted by shovenose
                                              maybe it just has to do with the fact that belkin makes cheap shit?
                                              ding!!!
                                              36 Monitors, 3 TVs, 4 Laptops, 1 motherboard, 1 Printer, 1 iMac, 2 hard drive docks and one IP Phone repaired so far....

                                                Comment

                                                • severach
                                                  Badcaps Legend
                                                  • Aug 2007
                                                  • 1055
                                                  • USA
                                                  #13
                                                  Re: KVM switch modification

                                                  All the cheapo PS2 KVMs I've used provide a simulated keyboard mouse and monitor to powered but inactive ports because too many motherboards couldn't handle reconnecting mice and keyboards and video cards want to change resolutions when the monitor disappears.

                                                  I've got a DKVM-4K to get rid of. I'm all USB now. The early USB KVM were horrible, unreliable and with more than 6 second switch delay. Now that KVM makers have discovered that USB KVM can be their own dual personality HID/Keyboard device the support is much better.
                                                  sig files are for morons

                                                    Comment

                                                    • PCBONEZ
                                                      Grumpy Old Fart
                                                      • Aug 2005
                                                      • 10661
                                                      • USA
                                                      #14
                                                      Re: KVM switch modification

                                                      Originally posted by severach
                                                      All the cheapo PS2 KVMs I've used provide a simulated keyboard mouse and monitor to powered but inactive ports because too many motherboards couldn't handle reconnecting mice and keyboards and video cards want to change resolutions when the monitor disappears.
                                                      Me too. Never had problems with PS2 types. Even Belkin.
                                                      That said, I have several types which I tested on receipt [to make sure they work] but I don't use them a heck of a lot.....
                                                      On some I could have easily missed something that creeps in over time or is mobo/OS dependent.
                                                      .
                                                      Last edited by PCBONEZ; 02-06-2012, 11:35 PM.
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