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Baro charts scale issue after upgrade

Posted: Saturday 31 October 2026 17:36
by lost
Hello,

Did upgrade yesterday from 2025.1 to 2026.4 (a long awaited update as I had to do a whole reinstall since 2 versions of rasbian passed due to libssl 1.1 to 3 breaking change) and looks there is a scale issue (mBar/Bar) in baro type chart history. See attached graph.
chart.jpeg
chart.jpeg (88.7 KiB) Viewed 305 times
No other issue, except my lets encrypt certificate that would not work adding DH section (as suggested by the wiki at time of writing of my cert upgrad escript) from current pre-signed one, but still working with an oldest default server_cert.pem, saw some posts about this from 1 or 2 years ago without clues but this was IMO same issue. I'll try to look a bit more into this later.

Re: Baro charts scale issue after upgrade

Posted: Sunday 01 November 2026 9:00
by gizmocuz
Thanks, found it. An upgrade step in 2026.x wrongly multiplied the stored day values of Temp+Hum+Baro sensors by 10 (these sensors store plain hPa), so the history before the upgrade shows around 10200 hPa. Fixed in the next beta: a new upgrade step divides those values again, so your history is restored automatically after updating; nothing to do on your side.

Re: Baro charts scale issue after upgrade

Posted: Sunday 01 November 2026 9:23
by lost
Thanks for the quickfix! I see there is one beta dated from today here:
https://www.domoticz.com/downloads/

Is this already in?

Re: Baro charts scale issue after upgrade

Posted: Sunday 01 November 2026 9:35
by gizmocuz
Patience please.. beta's take quite some time to build, specially if it involves a change that makes the whole backend to recompile...
Give it an hour :mrgreen:

Re: Baro charts scale issue after upgrade

Posted: Sunday 01 November 2026 14:15
by lost
Can confirm that's now fine with Domoticz V2026.4 (build 18581)-beta
All baro graphs scale OK, thanks again!
chart2.jpeg
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