Nut upsuser - Nov 2022 - ups-server grumpy after updating to Fedora 37

After updating to Fedora 37 ups-server started having a bad hair day, spewing  
this:

Nov 21 07:03:28 monster.email-scan.com nut-server[1735]: Can't connect to  
UPS [nutdev1] (usbhid-ups-nutdev1): No such file or directory

over and over again.

My ups.conf is nothing special:

[nutdev1]
	driver = "usbhid-ups"
	port = "auto"
	vendorid = "0764"
	productid = "0501"
        pollinterval = 10
        override.battery.charge.low = 25

nut-scanner obediently produces all the details:

[nutdev1]
	driver = "usbhid-ups"
	port = "auto"
	vendorid = "0764"
	productid = "0501"
	product = "CP1500PFCLCD"
	serial = "000000000000"
	vendor = "CPS"
	bus = "006"

May or may not be related: there's a widget on the desktop's XFCE panel,
that shows the UPS's status as normal, so something, somewhere, is  
communicating with the UPS.


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Sam Varshavchik <mrsam at courier-mta.com> writes:
> After updating to Fedora 37 ups-server started having a bad hair day,
> spewing this:
>
> Nov 21 07:03:28 monster.email-scan.com nut-server[1735]: Can't connect
> to UPS [nutdev1] (usbhid-ups-nutdev1): No such file or directory
>
> May or may not be related: there's a widget on the desktop's XFCE
> panel, that shows the UPS's status as normal, so something, somewhere,
> is communicating with the UPS.
It is highly likely related.  Use fstat or lsof ([1] or however that is
spelled on Fedora) to figure out what process has the uhid device open,
and run the ups drive process under ktrace/ktruss/truss ([1]) to see
what is actually failing at the syscall level.
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Sam Varshavchik writes:
> After updating to Fedora 37 ups-server started having a bad hair day,  
> spewing this:
>
> Nov 21 07:03:28 monster.email-scan.com nut-server[1735]: Can't connect
to
> UPS [nutdev1] (usbhid-ups-nutdev1): No such file or directory
For the benefit of anyone finding this in a search engine, this was tracked  
down to a Fedora 37 packaging bug: https://bugzilla.redhat.com/show_bug.cgi? 
id=2127269