I forgot to include the relevant part of /var/log/messages:
Jun 18 18:24:12 george kernel:
drivers/hid/usbhid/hid-core.c: can't reset device,
0000:00:1a.0-1.2.2.4/input0, status -71
Jun 18 18:24:12 george kernel: usb 1-1.2.2: clear tt 1 (00a0)
error -71
Jun 18 18:24:12 george kernel: drivers/hid/usbhid/hid-core.c:
can't reset device, 0000:00:1a.0-1.2.2.3/input0, status -71
Jun 18 18:24:12 george kernel: usb 1-1.2.2: USB disconnect,
address 6
Jun 18 18:24:12 george kernel: usb 1-1.2.2.1: USB disconnect,
address 7
Jun 18 18:24:12 george kernel: usb 1-1.2.2.2: USB disconnect,
address 8
Jun 18 18:24:12 george kernel: usb 1-1.2.2.3: USB disconnect,
address 9
Jun 18 18:24:17 george kernel: drivers/hid/usbhid/hid-core.c:
can't reset device, 0000:00:1a.0-1.2.2.3/input1, status -110
Jun 18 18:24:17 george kernel: usb 1-1.2.2: clear tt 1 (0090)
error -19
Jun 18 18:24:17 george kernel: usb 1-1.2.2.4: USB disconnect,
address 10
After that the system is unresponsive and I have reboot with the
power switch. Those devices are:
Jun 18 14:47:40 george kernel: generic-usb 0003:04F2:0833.0002:
input,hidraw1: USB HID v1.11 Keyboard [CHICONY USB Keyboard] on
usb-0000:00:1a.0-1.2.2.3/input0
Jun 18 14:47:40 george kernel: generic-usb 0003:045E:0029.0004:
input,hidraw3: USB HID v1.00 Mouse [Microsoft Microsoft
IntelliMouse® Optical] on usb-0000:00:1a.0-1.2.2.4/input0
One last question, should I post text only to this list or are
people happy with html formatting?
Joe
On 06/18/2012 07:42 PM, Joseph Areeda wrote:
[log in to unmask]" type="cite">Greeting,
This is my first post to this list, I'm hoping for some insight
into a vexing problem.
My situation is 4 computers running various operating systems:
Ubuntu, Scientific Linux 6.2, Debian Squeeze, MacOS X lion, and
Windows 7. All except the Mac and one Ubuntu are multiple boot and
used for cross platform development and testing.
I have a manual switch box with computers on ports 1-4 and a
powered USB hub with mouse, keyboard, scanner, microphone and a
USB headset adapter.
There is also an HDMI and DVI switch box but they are not part of
of the problem. Together they give me a more flexible KVM switch.
I can watch a long running job on Monitor #2 connected to one
system while working on another using Monitor #1.
When I boot up everything works fine. I can also switch between
systems freely. However if I leave one of the Linux systems
disconnected for a long while it doesn't respond when I switch
back to it. I have not seen this behavior with Windows or Mac. The
Mac is sometimes disconnected for days but Windows usually gets
booted back into Linux when I'm done with it.
SL6 usually dies but I can usually ssh into Ubuntu and reboot
cleanly. SL6 doesn't respond to pings or ssh. As long as I keep
the switch box on SL6 it has run for weeks.
Now I have tried 2 different USB switch boxes and when it doesn't
respond it doesn't respond even if I plug the hub, or the mouse
and keyboard directly into the usb ports on the system. I don't
believe it has anything to do with the KVM the OP mentioned or my
switch boxes.
Searching the web I found a comment that said a powered hub per
system worked with his USB KVM switch. I suspect we're seeing some
sort of USB timeout. I suppose I can get a powered hub per system
but I built these machines with 6 or 10 USB 2 and 2 or 4 USB 3
ports so I really don't need them. The powered hub may however
convince Linux that there is something plugged into that port and
keep it alive.
Does anyone know of a reason for this or even better a fix for it?
Thanks
Joe