[Nut-upsuser] USB/UPS connectivity issue on Intel DP55KG Motherboard [DEBUG logs included upsd/upsmon/usbhid-ups]

[Justin Piszcz]

On Wed, 14 Oct 2009, Justin Piszcz wrote:

> Hi,
>
> I have included debugging logs-- see below, is this a nut or kernel/USB 
> subsystem issue?
>
> There are no kernel messages in dmesg/syslog that relate to this event. The 
> same exact hardware was used on a different motherboard (DG965WH) without any 
> problems.
>
> Justin.
>
> On Wed, 14 Oct 2009, Justin Piszcz wrote:
>
>> On Tue, 13 Oct 2009, Robert Hancock wrote:
>> 
>>> On 10/13/2009 03:55 PM, Justin Piszcz wrote:
>>>> Hello,
>>>> 
>>>> I use the following in my ups.conf:
>>>> 
>>>> # USB:
>>>> [apc]
>>>> driver = usbhid-ups
>>>> port = auto
>>>> desc = "APC 1500VA"
>>>> pollfreq = 5
>>>> 
>>>> On my new motherboard (an Intel DP55KG), every once and awhile I get 
>>>> this:
>>>> 
>>>> Broadcast Message from nut at box.com
>>>> (somewhere) at 17:48 ...
>>>> 
>>>> Communications with UPS apc at localhost lost
>>>> 
>>>> 
>>>> Broadcast Message from nut at box.com
>>>> (somewhere) at 17:48 ...
>>>> 
>>>> Communications with UPS apc at localhost established
>>>> 
>>>> On my previous motherboard (a DG965WH), the exact same configuration was
>>>> used
>>>> and I never had this issue.
>>>> 
>>>> Any hints?
>>>> 
>>>> Should I increase the pollfreq to say 30 seconds?
>>>> 
>>>> Would this 'workaround' the problem?
>>>> 
>>>> Is this a known bug on this chipset?
>>> 
>>> Anything unusual showing up in dmesg?
>>> 
>> 
>
> Robert/Nut User List--
>
> Looks like the data goes stale, please let me know if any more logs/debugging 
> is required, is this a kernel/usb problem or a nut issue? I recall a change 
> in the USB subsystem a few kernel versions back caused a different issue (on 
> a different UPS, but nevertheless it was kernel related).

The details+logs are here (previous e-mail did not go through, too large for 
the list):

http://home.comcast.net/~jpiszcz/20091014/nut-problem.txt

Justin.