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I have a switch to transfer 2 USB inputs between four computers (piB, pi2, pc, and mac). I have only one input connected: an apple USB keyboard with a mouse and a windows keyboard connected into it's two underside USB's. It is a neat setup... however it only works after I manually connect devices and unconnect them (pi side) PC/MAC switch seamlessly... if I manually disconnect the switch, reconnect the keyboard (after I unplug all the peripherals), reconnect the peripherals one at a time, then connect the switch and plug back into the switch I can use everything again. But this is a stupid amount of labour.

How do I make my Pi play with my switch like my other machines do? It is perfectly capable (in the above method) of connecting to a windows keyboard daisy chained into it via an apple keyboard and a USB KVM switch... it just doesn't do it on start. Although it does correctly identify the keyboard and connected keyboards/mice by name during start.

So yes... how do I get the PI to connect to the devices it recognizes and can detect if I manually do that song and dance above? It's not a critical issue... but I would certainly love to know...

Or if anybody has a different solution. I just don't want four mice and four keyboards on my desktop... aside from the clutter I'd have interface issues switching between different products...

  • What kind of "switch" are you currently using? – Piotr Kula May 11 '15 at 8:03
  • Are you able to see the Pi's voltage when you switch the keyboard in/out? Maybe the Pi needs more juice to handle the switch over. – rob May 11 '15 at 10:18
  • amazon.com/gp/product/B006Z0Q2SI/… -- was the one i was using. I fried it and several attached peripherals yesterday -- by trying to plug a USB monitor into the apple keyboard connected to it. If anybody can suggest a better product -- i know that's off topic-- but it would be super duper appreciated lol... and might obviate the need to code around things :) – sas08 May 12 '15 at 15:28
  • and is the voltage a likely issue if i can go through the motions of connecting these in a certain order and achieve connection of all intended devices? – sas08 May 13 '15 at 4:15
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As I understand your question, you have screens on all 4 computers. If they are on the same network, you can play with synergy.

More info in this answer: Forward mouse and keyboard input to X session

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