[Nut-upsuser] Liebert PSA "On Battery" report

[Derek Harding]

Hi,

Back in 2011, it was reported that Liebert PSA devices persist in
reporting OB (On Battery) when using usbhid-ups regardless of the actual
state. Pier Paolo did some work (2011) which reportedly solved the
issue. However, that doesn't seem to have reached mainstream and I now
face the same problem.

I'm using NUT 2.6.3 with a new Liebert PSA 1500Va that only ever reports
OB and hence, when the power fails it doesn't trigger a shutdown (Ubuntu
12.04 servers). Latching power fail through upsc works as it should.

Any advice would be gratefully received but I would prefer not to have
to rebuild/build. I don't mind replacing with a different, more up to
date usbhid-ups.

[Tim Dawson]

Likely because 2.6.3 is not a current release. 2.7.2 (or 3?) is rhe current version, and it makes little sense to backport changes.

Nut is a trivial compile . . . 'Use the source, Luke . . .'

- Tim

Post by Derek Harding
Hi,
Back in 2011, it was reported that Liebert PSA devices persist in
reporting OB (On Battery) when using usbhid-ups regardless of the actual
state. Pier Paolo did some work (2011) which reportedly solved the
issue. However, that doesn't seem to have reached mainstream and I now
face the same problem.
I'm using NUT 2.6.3 with a new Liebert PSA 1500Va that only ever reports
OB and hence, when the power fails it doesn't trigger a shutdown (Ubuntu
12.04 servers). Latching power fail through upsc works as it should.
Any advice would be gratefully received but I would prefer not to have
to rebuild/build. I don't mind replacing with a different, more up to
date usbhid-ups.
--
Many thanks,
Derek
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[Charles Lepple]

Post by Tim Dawson
Likely because 2.6.3 is not a current release. 2.7.2 (or 3?) is rhe current version, and it makes little sense to backport changes.

Tim,

It's possible that these changes didn't make it in. I admit that would be my knee-jerk reaction to seeing an older version number, but the last occurrence of "PSA" in the drivers/ Git log is 2009.

Post by Tim Dawson
Nut is a trivial compile . . . 'Use the source, Luke . . .'
- Tim
Hi,
Back in 2011, it was reported that Liebert PSA devices persist in
reporting OB (On Battery) when using usbhid-ups regardless of the actual
state. Pier Paolo did some work (2011) which reportedly solved the
issue. However, that doesn't seem to have reached mainstream and I now
face the same problem.

Derek,

Do you have a link to the message where the problem was solved?

Post by Tim Dawson
I'm using NUT 2.6.3 with a new Liebert PSA 1500Va that only ever reports
OB and hence, when the power fails it doesn't trigger a shutdown (Ubuntu
12.04 servers). Latching power fail through upsc works as it should.

Not sure what you mean by "Latching power fail" - setting FSD through upsd?

Post by Tim Dawson
Any advice would be gratefully received but I would prefer not to have
to rebuild/build. I don't mind replacing with a different, more up to
date usbhid-ups.

It's hard to tell without seeing the results of upsc for the combination of your UPS and NUT version, but if you have a valid battery charge level, you can use the "ignorelb" setting to synthesize a low battery notification.

[Tim Dawson]

I guess it's kind of a natural response on my part, working professionally in software. T-Shooting step one: Get current and see if the problem persists. If it does,then step rwo: debug. 2+ years is forever in software, noting that 2.6.3 was mid 2012 . . .

- Tim

Post by Tim Dawson

Post by Tim Dawson
Likely because 2.6.3 is not a current release. 2.7.2 (or 3?) is rhe

current version, and it makes little sense to backport changes.
Tim,
It's possible that these changes didn't make it in. I admit that would
be my knee-jerk reaction to seeing an older version number, but the
last occurrence of "PSA" in the drivers/ Git log is 2009.

Post by Tim Dawson
Nut is a trivial compile . . . 'Use the source, Luke . . .'
- Tim
Hi,
Back in 2011, it was reported that Liebert PSA devices persist in
reporting OB (On Battery) when using usbhid-ups regardless of the

actual

Post by Tim Dawson
state. Pier Paolo did some work (2011) which reportedly solved the
issue. However, that doesn't seem to have reached mainstream and I

now

Post by Tim Dawson
face the same problem.

Derek,
Do you have a link to the message where the problem was solved?

Post by Tim Dawson
I'm using NUT 2.6.3 with a new Liebert PSA 1500Va that only ever

reports

Post by Tim Dawson
OB and hence, when the power fails it doesn't trigger a shutdown

(Ubuntu

Post by Tim Dawson
12.04 servers). Latching power fail through upsc works as it should.

Not sure what you mean by "Latching power fail" - setting FSD through upsd?

Post by Tim Dawson
Any advice would be gratefully received but I would prefer not to

have

Post by Tim Dawson
to rebuild/build. I don't mind replacing with a different, more up to
date usbhid-ups.

It's hard to tell without seeing the results of upsc for the
combination of your UPS and NUT version, but if you have a valid
battery charge level, you can use the "ignorelb" setting to synthesize
a low battery notification.
--
Charles Lepple
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