I recently got a GCS1714 IOGear Miniview 4-port USB KVMP switch to use
with my mixed environment of Windows and Linux machines. Unfortunately,
I find that this USB KVMP switch does not work with the kernel in RedHat
7.2. IOGear Customer Support acknowledges the problem, but only says
"Well, we tested thoroughly with RedHat 7.1 and it worked great there".
Has anyone else run into this this problem? Here are the main points:
o I have a GCS1714 IOGear Miniview 4-port USB KVMP switch.
o I'm running vanilla RedHat 7.2 Linux on a vanilla
700 Mhz PIII (SCSI w Asus motherboard).
o The switch works with my Windows 2000 box.
o My Linux box works with my Belkin Classic USB keyboard and
Microsoft Intellimouse mouse directly connected.
o My Linux box BIOS recognizes the Belkin Classic USB keyboard.
o However, when I shut down my Linux box, reconnect the USB
keyboard
and mouse through the GCS1714, and reboot, the Linux box can no longer
see either device. I do see hundreds of the following messages in
/var/log/messages:
Jun 11 06:02:14 pythagoras kernel: usb-uhci.c:
interrupt, status 3,
frame# 1780
Jun 11 06:02:14 pythagoras kernel: usb-uhci.c:
interrupt, status 3,
frame# 1788
Jun 11 06:02:14 pythagoras kernel: usb-uhci.c:
interrupt, status 3,
frame# 1796
Jun 11 06:02:14 pythagoras kernel: usb-uhci.c:
interrupt, status 3,
frame# 1804
.
.
Jun 11 06:02:14 pythagoras kernel: usb-uhci.c: too many
bad
statuses
I built a 2.5.20 kernel and tried it, but saw the same problem.
I poked around linux/drivers/usb/host, but the status 3 doesn't say too
much (to me at least), i.e., it's an "Interrupt due to IOC" and
"Interrupt due to error".
Thanks!
Daniel
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