Nut upsuser - Feb 2011 - Status OB (on battery) when polling a Liebert PSA

Hi all,

This is my first experience with NUT.
I'm trying to test a Liebert PSA 1500 UPS, connected via USB to a single PC.
I have followed the instruction in the "Configuration" section of the
online
user manual.

Everything seems to be fine, except that, when I run "upsc
liebert at localhostups.status", it retuns "OB", even if the UPS
is
currently online.

Here are the information related to my system:

   - Debian 6.0 on Intel Pentium 4; kernel version 2.6.32-5-686;
   - NUT version 2.4.3-1.1squeeze1, installed with package system;
   - UPS: Liebert PSA1500MT3-230U

My ups.conf is the following:
[liebert]
        driver = usbhid-ups
        port = auto
        desc = "Liebert PSA1500MT3 UPS"

The result of "upsdrvctl start" is:
Network UPS Tools - UPS driver controller 2.4.3
Network UPS Tools - Generic HID driver 0.34 (2.4.3)
USB communication driver 0.31
Using subdriver: Belkin HID 0.12

The result of "upsd" is:
Network UPS Tools upsd 2.4.3
listening on 127.0.0.1 port 3493
listening on ::1 port 3493
Connected to UPS [liebert]: usbhid-ups-liebert

The complete list obtained with "upsc" is:
battery.charge.low: 38
battery.charge.warning: 38
battery.type: PbAc
device.mfr: Emerson Network Power
device.model: LiebertPSA
device.serial:
device.type: ups
driver.name: usbhid-ups
driver.parameter.pollfreq: 30
driver.parameter.pollinterval: 2
driver.parameter.port: auto
driver.version: 2.4.3
driver.version.data: Belkin HID 0.12
driver.version.internal: 0.34
ups.mfr: Emerson Network Power
ups.model: LiebertPSA
ups.productid: 0001
ups.serial:
ups.status: OB
ups.vendorid: 10af

What problem could be there?

I would like to paste also a complete tracing of "/lib/nut/usbhid-ups
-DDDDD
-a liebert", but the message would become too big.
Please tell me if there is any relevant portion that I could paste here.
Thanks in advance for your help.
Pier
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Citeren Pier Paolo Glave <pierpaolo.glave op gmail.com>:
> Everything seems to be fine, except that, when I run "upsc
> liebert op localhostups.status", it retuns "OB", even if the
UPS is
> currently online.
Looking at the rejected earlier message, I'd say you have a Belkin OEM  
device that has a very broken report descriptor. You may want to  
checkout the recently released nut-2.6.0 version. But I'm almost  
certain that the fixes in the HID parser are not going to solve this  
problem and that instead the problem is in the UPS itself. We may or  
may not be able to work around this, but in that case we will need  
lots of support from you (and you must be willing/capable to run the  
development version too).

[...]
> I would like to paste also a complete tracing of "/lib/nut/usbhid-ups
-DDDDD
> -a liebert", but the message would become too big.
Then use gzip to compress it before attaching. We really need the full  
listing as an attachment, not inline in a message.

Best regards, Arjen
-- 
Please keep list traffic on the list (off-list replies will be rejected)

Hi Arjen,

Thanks for your answer.
If you have time to support me, I will for sure follow you, providing all
the information you need.
I'm a software designer too, so don't hesitate to ask for some
particular
build or to make changes at source code level.

Looking at the rejected earlier message, I'd say you have a Belkin
OEM
> device that has a very broken report descriptor. You may want to
> checkout the recently released nut-2.6.0 version. But I'm almost
> certain that the fixes in the HID parser are not going to solve this
> problem and that instead the problem is in the UPS itself. We may or
> may not be able to work around this, but in that case we will need
> lots of support from you (and you must be willing/capable to run the
> development version too).
>
I have built the nut-2.6.0 version.
I did not want to completely uninstall my 2.4.3 version, which had been so
gracefully installed by the debian package system... So, I tried to install
only the 2.6.0 drivers, and forced nut to use them, by creating a new
directory called /lib/nut-2.6, and making a symbolic link:
/lib/nut -> /lib/nut-2.6.
Please tell me if this is a right approach, to use the 2.6 HID parser.

(I'm posting again this message, because I've seen that the last lines
and the attachment are missing, in the version archived at
http://lists.alioth.debian.org/pipermail/nut-upsuser/2011-February/006618.html.
Maybe it's because I was not using plain text. Sorry for the double
post, if you received it twice. Pier)

Hi Arjen,

Thanks for your answer.
If you have time to support me, I will for sure follow you, providing all
the information you need.
I'm a software designer too, so don't hesitate to ask for some
particular
build or to make changes at source code level.
> Looking at the rejected earlier message, I'd say you have a Belkin OEM
> device that has a very broken report descriptor. You may want to
> checkout the recently released nut-2.6.0 version. But I'm almost
> certain that the fixes in the HID parser are not going to solve this
> problem and that instead the problem is in the UPS itself. We may or
> may not be able to work around this, but in that case we will need
> lots of support from you (and you must be willing/capable to run the
> development version too).
I have built the nut-2.6.0 version.
I did not want to completely uninstall my 2.4.3 version, which had been so
gracefully installed by the debian package system... So, I tried to install
only the 2.6.0 drivers, and forced nut to use them, by creating a new
directory called /lib/nut-2.6, and making a symbolic link:
/lib/nut -> /lib/nut-2.6.
Please tell me if this is a right approach, to use the 2.6 HID parser.