2.6.31.4: Any other suggestions regarding a UPS/USB (APC1500VA) on (Intel P55KG) stale issue?

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Hello,

Problem: When I migrated from a DG965WH -> DP55KG motherboard, there were quite a bit of issues, host still does not reboot without special flags, e.g. reboot=a, the NIC driver is broken with the in-kernel version (the one on e1000.sourceforge) fixes that and finally my UPS USB has driver stale problems, with two issues already relating to the HW/drivers themselves it would not be unrealistic to speculate that there could be an issue with the USB chipset/driver with this P55 motherboard.

Is anyone else out there running an APC1500VA UPS on a P55 motherboard? If so, what have been your results?

Motherboard: Intel P55KG
Kernel: 2.6.31.4 x86_64

Details from nut/kernel usb trace:
http://home.comcast.net/~jpiszcz/20091014/nut-problem.txt

The last thread petered out:
http://www.gossamer-threads.com/lists/linux/kernel/1143579

# From ups -D
Got 2 HID objects...
Quick update...
upsdrv_updateinfo...
Got 2 HID objects...
Quick update...
Can't retrieve Report 22: Broken pipe
upsdrv_updateinfo...
Got to reconnect!
upsdrv_updateinfo...
Got to reconnect!
Can't retrieve Report 19: Broken pipe
upsdrv_updateinfo...
Got to reconnect!
Can't retrieve Report 15: Broken pipe
upsdrv_updateinfo...
Got to reconnect!
upsdrv_updateinfo...

# From the system logs:
Broadcast Message from nut@xxxxxxxxxxxxxxxx
        (somewhere) at 6:01 ...
Communications with UPS apc@localhost lost
Broadcast Message from nut@xxxxxxxxxxxxxxxx
        (somewhere) at 6:02 ...
Communications with UPS apc@localhost established
Broadcast Message from nut@xxxxxxxxxxxxxxxx
        (somewhere) at 6:03 ...

# From ups.conf:
[apc]
        driver = usbhid-ups
        port = auto
        desc = "APC 1500VA"

All other USB devices work properly, USB CD/DVD writer, keyboard, mouse, etc. The same UPS (APC 1500VA) worked fine on the last board, same cable, etc. I have tried power cycling the UPS and using a different port on the motherboard, to no avail.

Aside from purchasing a different UPS (if I wanted to use nut)- is it possible there is a bug in the chipset on these P55 boards in the way the driver communicates with it?

Since this problem is 100% reproducible every time, is there anyway to look into this issue any further?

Justin.
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