Public bug reported:
I recently upgraded my system from Lucid (10.04) to Precise (12.04)
doing a full, fresh installation.
On lucid, my KVM switch (Aten CS682) was working properly switching the
linux machine and another windows machine. The only thing which did not
work were they multimedia keys on the keyboard, but I assume that this
is a limitation of the switch. One more thing worth noting is that the
devices had to be plugged in reversed (keyboard in mouse port and mouse
in keyboard port) into the KVM switch.
Now with precise, the switch is basically unuseable. Even when booting
the live system, the keyboard is not working when I plug it into the
keyboard port of the KVM switch. This is true both for console and Xorg.
When pressing the hardware button on the KVM switch the screens are
switched correctly, but the keyboard remains non-functional. I get
messages like this in the syslog:
[ 1726.109776] generic-usb 0003:046D:C313.0034: can't reset device,
0000:00:1d.7-3.2/input0, status -71
When plugging in the keyboard and the mouse into the "proper" usb ports
on the switch, the mouse does not work both in Ubuntu Lucid and Precise
as well as with Windows.
I attached some log files, both with the keyboard directly plugged in
into the machine and the "dead" keyboard when plugged into the KVM
switch.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Incomplete
** Tags: precise
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https://bugs.launchpad.net/bugs/995545
Title:
Regression: Upgrade to precise (12.04) breaks KVM Switch Aten CS682
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