[Nut-upsuser] Enhanced driver troubleshooting

[gene heskett]

On 4/24/23 13:12, Greg Troxel wrote:
> gene heskett <gheskett at shentel.net> writes:
> 
>> Jim, would an upgrade to the install on my rpi4b running a medium
>> sized 80+ yo lathe give me better control over a:
>> device.mfr: CPS
>> device.model: CP625HGa
>> device.type: ups
>> driver.name: usbhid-ups
>> driver.parameter.offdelay: 120
>> where that offdelay seems hard coded. The 625WA rating could run that
>> pi for t least an hour, but it chops it off in 2 minutes.
>> currently running 2.7.4 on raspios buster.
> 
> I think nut only works with lathes made after 1969 :-)
> 
> But seriously, a lot has been fixed/added since 2.7.4.

nut-2.7.4 on the pi looks like it must have been from a gzip, so its not 
precious.

So how about the rest of a git clone commandline for the latest? My pi 
can build it and keep it up to date then as it has a complete build 
system on it, builds its own pre-emt-realtime kernels AND linuxcnc.
> 
> As I understand it, offdelay is about the time delta from telling the
> ups to shut down until it kills power, so the OS can sync disks.  I have
> a 90s UPS with a 10s delay and nut does not try to shut down until I get
> a lowbattery indication, so I get 30 minutes of runtime with graceful
> stop, vs maybe 40-something without nut to empty/hard-off.
> 
> Is your UPS shutting down without nut telling it to?
> .

Cheers, Gene Heskett.
-- 
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