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

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Message-ID: <alpine.DEB.2.00.0910291047530.14066@p34.internal.lan>
Date:	Thu, 29 Oct 2009 10:58:52 -0400 (EDT)
From:	Justin Piszcz <jpiszcz@...idpixels.com>
To:	linux-kernel@...r.kernel.org
cc:	linux-usb@...r.kernel.org, nut-upsuser@...ts.alioth.debian.org
Subject: 2.6.31.4: Any other suggestions regarding a UPS/USB (APC1500VA) on
 (Intel P55KG) stale issue?

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@....internal.lan
         (somewhere) at 6:01 ...
Communications with UPS apc@...alhost lost
Broadcast Message from nut@....internal.lan
         (somewhere) at 6:02 ...
Communications with UPS apc@...alhost established
Broadcast Message from nut@....internal.lan
         (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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