[Bug 176326] Re: Wont' work with KVM switch

SEAQ - Andres Mujica andres.mujica at seaq.com.co
Tue Aug 12 01:59:27 UTC 2008

The right link is:


bugzilla kernel 4564

Anyway it seems to be a problem of ps/2 protocol between de KVM and the
MB of your system according to what i've found.

Try putting any of this parameters at the end off kernel boot line

psmouse.proto=exps  or  psmouse.proto=bare or psmouse.proto=imps

Also you can try unloading the psmouse module and reloading with this

proto=imps resync_time=10

try using the different protocols.

Also to get the most information let's get this output as root:

- "echo 1 > /sys/modules/i8042/parameters/debug"
- switch to your other box
- wait 5 seconds
- switch back to linux box
- Press left mouse button once
- "echo 0 > /sys/modules/i8042/parameters/debug"
- upload dmesg

About the video issue i believe we would need a different bug report for that one.   in the meantime i'm marking this related to upstream bug 2082 and 4564.  Not exactly the same but similar enough.

** Changed in: xserver-xorg-input-mouse (Ubuntu)
Sourcepackagename: None => xserver-xorg-input-mouse
     Assignee: SEAQ - Andres Mujica (andres-mujica) => (unassigned)
       Status: Incomplete => Confirmed

** Changed in: xserver-xorg-input-keyboard (Ubuntu)
       Status: New => Confirmed

** Changed in: linux (Ubuntu)
       Status: New => Confirmed

** Bug watch added: Linux Kernel Bug Tracker #2082

** Also affects: linux via
   Importance: Unknown
       Status: Unknown

Wont' work with KVM switch
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